diff --git a/AltStore/App Detail/AppViewController.swift b/AltStore/App Detail/AppViewController.swift
index 44c26f42..8854c56d 100644
--- a/AltStore/App Detail/AppViewController.swift	
+++ b/AltStore/App Detail/AppViewController.swift	
@@ -87,8 +87,6 @@ final class AppViewController: UIViewController
         self.bannerView.iconImageView.tintColor = self.app.tintColor
         self.bannerView.button.tintColor = self.app.tintColor
         self.bannerView.tintColor = self.app.tintColor
-        
-        self.bannerView.configure(for: self.app)
         self.bannerView.accessibilityTraits.remove(.button)
         
         self.bannerView.button.addTarget(self, action: #selector(AppViewController.performAppAction(_:)), for: .primaryActionTriggered)
@@ -352,37 +350,14 @@ private extension AppViewController
         {
             button.tintColor = self.app.tintColor
             button.isIndicatingActivity = false
-            
-            if let installedApp = self.app.installedApp
-            {
-                if let latestVersion = self.app.latestSupportedVersion, !installedApp.matches(latestVersion)
-                {
-                    button.setTitle(NSLocalizedString("UPDATE", comment: ""), for: .normal)
-                }
-                else
-                {
-                    button.setTitle(NSLocalizedString("OPEN", comment: ""), for: .normal)
-                }
-            }
-            else
-            {
-                button.setTitle(NSLocalizedString("FREE", comment: ""), for: .normal)
-            }
-            
-            let progress = AppManager.shared.installationProgress(for: self.app)
-            button.progress = progress
         }
         
-        if let versionDate = self.app.latestSupportedVersion?.date, versionDate > Date()
-        {
-            self.bannerView.button.countdownDate = versionDate
-            self.navigationBarDownloadButton.countdownDate = versionDate
-        }
-        else
-        {
-            self.bannerView.button.countdownDate = nil
-            self.navigationBarDownloadButton.countdownDate = nil
-        }
+        self.bannerView.configure(for: self.app)
+        
+        let title = self.bannerView.button.title(for: .normal)
+        self.navigationBarDownloadButton.setTitle(title, for: .normal)
+        self.navigationBarDownloadButton.progress = self.bannerView.button.progress
+        self.navigationBarDownloadButton.countdownDate = self.bannerView.button.countdownDate
         
         let barButtonItem = self.navigationItem.rightBarButtonItem
         self.navigationItem.rightBarButtonItem = nil
diff --git a/AltStore/Browse/BrowseViewController.swift b/AltStore/Browse/BrowseViewController.swift
index 26d08355..7949abd2 100644
--- a/AltStore/Browse/BrowseViewController.swift
+++ b/AltStore/Browse/BrowseViewController.swift
@@ -137,40 +137,8 @@ private extension BrowseViewController
             cell.bannerView.button.activityIndicatorView.style = .medium
             cell.bannerView.button.activityIndicatorView.color = .white
             
-            // Explicitly set to false to ensure we're starting from a non-activity indicating state.
-            // Otherwise, cell reuse can mess up some cached values.
-            cell.bannerView.button.isIndicatingActivity = false
-            
             let tintColor = app.tintColor ?? .altPrimary
             cell.tintColor = tintColor
-            
-            if app.installedApp == nil
-            {
-                let buttonTitle = NSLocalizedString("Free", comment: "")
-                cell.bannerView.button.setTitle(buttonTitle.uppercased(), for: .normal)
-                cell.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Download %@", comment: ""), app.name)
-                cell.bannerView.button.accessibilityValue = buttonTitle
-                
-                let progress = AppManager.shared.installationProgress(for: app)
-                cell.bannerView.button.progress = progress
-                
-                if let versionDate = app.latestSupportedVersion?.date, versionDate > Date()
-                {
-                    cell.bannerView.button.countdownDate = versionDate
-                }
-                else
-                {
-                    cell.bannerView.button.countdownDate = nil
-                }
-            }
-            else
-            {
-                cell.bannerView.button.setTitle(NSLocalizedString("OPEN", comment: ""), for: .normal)
-                cell.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Open %@", comment: ""), app.name)
-                cell.bannerView.button.accessibilityValue = nil
-                cell.bannerView.button.progress = nil
-                cell.bannerView.button.countdownDate = nil
-            }
         }
         dataSource.prefetchHandler = { (storeApp, indexPath, completionHandler) -> Foundation.Operation? in
             let iconURL = storeApp.iconURL
@@ -311,7 +279,7 @@ private extension BrowseViewController
         
         let app = self.dataSource.item(at: indexPath)
         
-        if let installedApp = app.installedApp
+        if let installedApp = app.installedApp, !installedApp.isUpdateAvailable
         {
             self.open(installedApp)
         }
@@ -335,7 +303,21 @@ private extension BrowseViewController
             return
         }
 
-        _ = AppManager.shared.install(app, presentingViewController: self) { (result) in
+        if let installedApp = app.installedApp, installedApp.isUpdateAvailable
+        {
+            AppManager.shared.update(installedApp, presentingViewController: self, completionHandler: finish(_:))
+        }
+        else
+        {
+            AppManager.shared.install(app, presentingViewController: self, completionHandler: finish(_:))
+        }
+        
+        UIView.performWithoutAnimation {
+            self.collectionView.reloadItems(at: [indexPath])
+        }
+        
+        func finish(_ result: Result<InstalledApp, Error>)
+        {
             DispatchQueue.main.async {
                 switch result
                 {
@@ -343,15 +325,22 @@ private extension BrowseViewController
                 case .failure(let error):
                     let toastView = ToastView(error: error, opensLog: true)
                     toastView.show(in: self)
-                
+                    
                 case .success: print("Installed app:", app.bundleIdentifier)
                 }
                 
-                self.collectionView.reloadItems(at: [indexPath])
+                UIView.performWithoutAnimation {
+                    if let indexPath = self.dataSource.fetchedResultsController.indexPath(forObject: app)
+                    {
+                        self.collectionView.reloadItems(at: [indexPath])
+                    }
+                    else
+                    {
+                        self.collectionView.reloadSections(IndexSet(integer: indexPath.section))
+                    }
+                }
             }
         }
-        
-        self.collectionView.reloadItems(at: [indexPath])
     }
     
     func open(_ installedApp: InstalledApp)
diff --git a/AltStore/Components/AppBannerView.swift b/AltStore/Components/AppBannerView.swift
index 9396b6e8..ed316768 100644
--- a/AltStore/Components/AppBannerView.swift
+++ b/AltStore/Components/AppBannerView.swift
@@ -18,6 +18,14 @@ extension AppBannerView
         case app
         case source
     }
+    
+    enum AppAction
+    {
+        case install
+        case open
+        case update
+        case custom(String)
+    }
 }
 
 class AppBannerView: RSTNibView
@@ -111,7 +119,7 @@ class AppBannerView: RSTNibView
 
 extension AppBannerView
 {
-    func configure(for app: AppProtocol)
+    func configure(for app: AppProtocol, action: AppAction? = nil)
     {
         struct AppValues
         {
@@ -150,6 +158,94 @@ extension AppBannerView
             self.subtitleLabel.text = NSLocalizedString("Sideloaded", comment: "")
             self.accessibilityLabel = values.name
         }
+        
+        self.buttonLabel.isHidden = true
+        
+        let buttonAction: AppAction
+        
+        if let action
+        {
+            buttonAction = action
+        }
+        else if let storeApp = app.storeApp
+        {
+            if let installedApp = storeApp.installedApp
+            {
+                // App is installed
+                
+                if installedApp.isUpdateAvailable
+                {
+                    buttonAction = .update
+                }
+                else
+                {
+                    buttonAction = .open
+                }
+            }
+            else
+            {
+                // App is not installed
+                buttonAction = .install
+            }
+        }
+        else
+        {
+            // App is not from a source, fall back to .open
+            buttonAction = .open
+        }
+        
+        switch buttonAction
+        {
+        case .open:
+            let buttonTitle = NSLocalizedString("Open", comment: "")
+            self.button.setTitle(buttonTitle.uppercased(), for: .normal)
+            self.button.accessibilityLabel = String(format: NSLocalizedString("Open %@", comment: ""), values.name)
+            self.button.accessibilityValue = buttonTitle
+                        
+            self.button.countdownDate = nil
+            
+        case .update:
+            let buttonTitle = NSLocalizedString("Update", comment: "")
+            self.button.setTitle(buttonTitle.uppercased(), for: .normal)
+            self.button.accessibilityLabel = String(format: NSLocalizedString("Update %@", comment: ""), values.name)
+            self.button.accessibilityValue = buttonTitle
+            
+            self.button.countdownDate = nil
+            
+        case .custom(let buttonTitle):
+            self.button.setTitle(buttonTitle, for: .normal)
+            self.button.accessibilityLabel = buttonTitle
+            self.button.accessibilityValue = buttonTitle
+            
+            self.button.countdownDate = nil
+            
+        case .install:
+            let buttonTitle = NSLocalizedString("Free", comment: "")
+            self.button.setTitle(buttonTitle.uppercased(), for: .normal)
+            self.button.accessibilityLabel = String(format: NSLocalizedString("Download %@", comment: ""), app.name)
+            self.button.accessibilityValue = buttonTitle
+            
+            if let versionDate = app.storeApp?.latestSupportedVersion?.date, versionDate > Date()
+            {
+                self.button.countdownDate = versionDate
+            }
+            else
+            {
+                self.button.countdownDate = nil
+            }
+        }
+        
+        // Ensure PillButton is correct size before assigning progress.
+        self.layoutIfNeeded()
+        
+        if let progress = AppManager.shared.installationProgress(for: app), progress.fractionCompleted < 1.0
+        {
+            self.button.progress = progress
+        }
+        else
+        {
+            self.button.progress = nil
+        }
     }
     
     func configure(for source: Source)
diff --git a/AltStore/Components/AppCardCollectionViewCell.swift b/AltStore/Components/AppCardCollectionViewCell.swift
index 26fb00ba..25fa3046 100644
--- a/AltStore/Components/AppCardCollectionViewCell.swift
+++ b/AltStore/Components/AppCardCollectionViewCell.swift
@@ -289,6 +289,10 @@ extension AppCardCollectionViewCell
     {
         self.screenshots = storeApp.preferredScreenshots()
         
+        // Explicitly set to false to ensure we're starting from a non-activity indicating state.
+        // Otherwise, cell reuse can mess up some cached values.
+        self.bannerView.button.isIndicatingActivity = false
+        
         self.bannerView.tintColor = storeApp.tintColor
         self.bannerView.configure(for: storeApp)
         
diff --git a/AltStore/My Apps/MyAppsViewController.swift b/AltStore/My Apps/MyAppsViewController.swift
index 8ec466af..8328d46a 100644
--- a/AltStore/My Apps/MyAppsViewController.swift	
+++ b/AltStore/My Apps/MyAppsViewController.swift	
@@ -237,7 +237,8 @@ private extension MyAppsViewController
             cell.bannerView.iconImageView.image = nil
             cell.bannerView.iconImageView.isIndicatingActivity = true
             
-            cell.bannerView.configure(for: app)
+            cell.bannerView.button.isIndicatingActivity = false
+            cell.bannerView.configure(for: app, action: .update)
             
             let versionDate = Date().relativeDateString(since: latestSupportedVersion.date)
             cell.bannerView.subtitleLabel.text = versionDate
@@ -255,7 +256,6 @@ private extension MyAppsViewController
             
             cell.bannerView.accessibilityLabel = String(format: NSLocalizedString("%@ %@ update. Released on %@.", comment: ""), appName, latestSupportedVersion.localizedVersion, versionDate)
             
-            cell.bannerView.button.isIndicatingActivity = false
             cell.bannerView.button.addTarget(self, action: #selector(MyAppsViewController.updateApp(_:)), for: .primaryActionTriggered)
             cell.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Update %@", comment: ""), installedApp.name)
             
@@ -270,9 +270,6 @@ private extension MyAppsViewController
             
             cell.versionDescriptionTextView.moreButton.addTarget(self, action: #selector(MyAppsViewController.toggleUpdateCellMode(_:)), for: .primaryActionTriggered)
             
-            let progress = AppManager.shared.installationProgress(for: app)
-            cell.bannerView.button.progress = progress
-            
             cell.setNeedsLayout()
         }
         dataSource.prefetchHandler = { (installedApp, indexPath, completionHandler) in
@@ -340,17 +337,6 @@ private extension MyAppsViewController
                 cell.deactivateBadge?.transform = CGAffineTransform.identity.scaledBy(x: 0.33, y: 0.33)
             }
             
-            cell.bannerView.configure(for: installedApp)
-            
-            cell.bannerView.iconImageView.isIndicatingActivity = true
-            
-            cell.bannerView.buttonLabel.isHidden = false
-            cell.bannerView.buttonLabel.text = NSLocalizedString("Expires in", comment: "")
-            
-            cell.bannerView.button.isIndicatingActivity = false
-            cell.bannerView.button.removeTarget(self, action: nil, for: .primaryActionTriggered)
-            cell.bannerView.button.addTarget(self, action: #selector(MyAppsViewController.refreshApp(_:)), for: .primaryActionTriggered)
-            
             let currentDate = Date()
             
             let numberOfDays = installedApp.expirationDate.numberOfCalendarDays(since: currentDate)
@@ -368,6 +354,17 @@ private extension MyAppsViewController
             
             cell.bannerView.button.setTitle(formatter.string(from: currentDate, to: installedApp.expirationDate)?.uppercased(), for: .normal)
             
+            cell.bannerView.button.isIndicatingActivity = false
+            cell.bannerView.configure(for: installedApp, action: .custom(numberOfDaysText.uppercased()))
+            
+            cell.bannerView.iconImageView.isIndicatingActivity = true
+            
+            cell.bannerView.buttonLabel.isHidden = false
+            cell.bannerView.buttonLabel.text = NSLocalizedString("Expires in", comment: "")
+            
+            cell.bannerView.button.removeTarget(self, action: nil, for: .primaryActionTriggered)
+            cell.bannerView.button.addTarget(self, action: #selector(MyAppsViewController.refreshApp(_:)), for: .primaryActionTriggered)
+            
             cell.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Refresh %@", comment: ""), installedApp.name)
 
             // formatter.includesTimeRemainingPhrase = true
@@ -457,11 +454,10 @@ private extension MyAppsViewController
             cell.deactivateBadge?.alpha = 0.0
             cell.deactivateBadge?.transform = CGAffineTransform.identity.scaledBy(x: 0.5, y: 0.5)
             
-            cell.bannerView.configure(for: installedApp)
-            
             cell.bannerView.button.isIndicatingActivity = false
+            cell.bannerView.configure(for: installedApp, action: .custom(NSLocalizedString("ACTIVATE", comment: "")))
+            
             cell.bannerView.button.tintColor = tintColor
-            cell.bannerView.button.setTitle(NSLocalizedString("ACTIVATE", comment: ""), for: .normal)
             cell.bannerView.button.removeTarget(self, action: nil, for: .primaryActionTriggered)
             cell.bannerView.button.addTarget(self, action: #selector(MyAppsViewController.activateApp(_:)), for: .primaryActionTriggered)
             cell.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Activate %@", comment: ""), installedApp.name)
diff --git a/AltStore/My Apps/UpdateCollectionViewCell.swift b/AltStore/My Apps/UpdateCollectionViewCell.swift
index b9c92791..72ae798a 100644
--- a/AltStore/My Apps/UpdateCollectionViewCell.swift	
+++ b/AltStore/My Apps/UpdateCollectionViewCell.swift	
@@ -42,8 +42,7 @@ extension UpdateCollectionViewCell
         self.contentView.preservesSuperviewLayoutMargins = true
         
         self.bannerView.backgroundEffectView.isHidden = true
-        self.bannerView.button.setTitle(NSLocalizedString("UPDATE", comment: ""), for: .normal)
-                
+        
         self.blurView.layer.cornerRadius = 20
         self.blurView.layer.masksToBounds = true
         
diff --git a/AltStore/News/NewsViewController.swift b/AltStore/News/NewsViewController.swift
index d32caa7f..6ad135ab 100644
--- a/AltStore/News/NewsViewController.swift
+++ b/AltStore/News/NewsViewController.swift
@@ -341,7 +341,7 @@ private extension NewsViewController
         let app = self.dataSource.item(at: indexPath)
         guard let storeApp = app.storeApp else { return }
         
-        if let installedApp = app.storeApp?.installedApp
+        if let installedApp = storeApp.installedApp, !installedApp.isUpdateAvailable
         {
             self.open(installedApp)
         }
@@ -359,7 +359,21 @@ private extension NewsViewController
             return
         }
         
-        _ = AppManager.shared.install(storeApp, presentingViewController: self) { (result) in
+        if let installedApp = storeApp.installedApp, installedApp.isUpdateAvailable
+        {
+            AppManager.shared.update(installedApp, presentingViewController: self, completionHandler: finish(_:))
+        }
+        else
+        {
+            AppManager.shared.install(storeApp, presentingViewController: self, completionHandler: finish(_:))
+        }
+        
+        UIView.performWithoutAnimation {
+            self.collectionView.reloadSections(IndexSet(integer: indexPath.section))
+        }
+        
+        func finish(_ result: Result<InstalledApp, Error>)
+        {
             DispatchQueue.main.async {
                 switch result
                 {
@@ -375,10 +389,6 @@ private extension NewsViewController
                 }
             }
         }
-        
-        UIView.performWithoutAnimation {
-            self.collectionView.reloadSections(IndexSet(integer: indexPath.section))
-        }
     }
     
     func open(_ installedApp: InstalledApp)
@@ -424,42 +434,13 @@ extension NewsViewController
         footerView.layoutMargins.left = self.view.layoutMargins.left
         footerView.layoutMargins.right = self.view.layoutMargins.right
         
+        footerView.bannerView.button.isIndicatingActivity = false
         footerView.bannerView.configure(for: storeApp)
         
         footerView.bannerView.tintColor = storeApp.tintColor
         footerView.bannerView.button.addTarget(self, action: #selector(NewsViewController.performAppAction(_:)), for: .primaryActionTriggered)
         footerView.tapGestureRecognizer.addTarget(self, action: #selector(NewsViewController.handleTapGesture(_:)))
         
-        footerView.bannerView.button.isIndicatingActivity = false
-        
-        if storeApp.installedApp == nil
-        {
-            let buttonTitle = NSLocalizedString("Free", comment: "")
-            footerView.bannerView.button.setTitle(buttonTitle.uppercased(), for: .normal)
-            footerView.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Download %@", comment: ""), storeApp.name)
-            footerView.bannerView.button.accessibilityValue = buttonTitle
-            
-            let progress = AppManager.shared.installationProgress(for: storeApp)
-            footerView.bannerView.button.progress = progress
-            
-            if let versionDate = storeApp.latestSupportedVersion?.date, versionDate > Date()
-            {
-                footerView.bannerView.button.countdownDate = versionDate
-            }
-            else
-            {
-                footerView.bannerView.button.countdownDate = nil
-            }
-        }
-        else
-        {
-            footerView.bannerView.button.setTitle(NSLocalizedString("OPEN", comment: ""), for: .normal)
-            footerView.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Open %@", comment: ""), storeApp.name)
-            footerView.bannerView.button.accessibilityValue = nil
-            footerView.bannerView.button.progress = nil
-            footerView.bannerView.button.countdownDate = nil
-        }
-        
         Nuke.loadImage(with: storeApp.iconURL, into: footerView.bannerView.iconImageView)
         
         return footerView
diff --git a/AltStore/Sources/SourceDetailContentViewController.swift b/AltStore/Sources/SourceDetailContentViewController.swift
index e2cd8eb0..d1ef6e56 100644
--- a/AltStore/Sources/SourceDetailContentViewController.swift
+++ b/AltStore/Sources/SourceDetailContentViewController.swift
@@ -225,43 +225,13 @@ private extension SourceDetailContentViewController
             cell.contentView.layoutMargins = .zero
             cell.contentView.backgroundColor = .altBackground
             
+            cell.bannerView.button.isIndicatingActivity = false
             cell.bannerView.configure(for: storeApp)
             
-            cell.bannerView.iconImageView.isIndicatingActivity = true
-            cell.bannerView.buttonLabel.isHidden = true
-            
-            cell.bannerView.button.isIndicatingActivity = false
             cell.bannerView.button.tintColor = storeApp.tintColor
+            cell.bannerView.button.addTarget(self, action: #selector(SourceDetailContentViewController.performAppAction(_:)), for: .primaryActionTriggered)
             
-            let buttonTitle = NSLocalizedString("Free", comment: "")
-            cell.bannerView.button.setTitle(buttonTitle.uppercased(), for: .normal)
-            cell.bannerView.button.accessibilityLabel = String(format: NSLocalizedString("Download %@", comment: ""), storeApp.name)
-            cell.bannerView.button.accessibilityValue = buttonTitle
-            cell.bannerView.button.addTarget(self, action: #selector(SourceDetailContentViewController.addSourceThenDownloadApp(_:)), for: .primaryActionTriggered)
-            
-            let progress = AppManager.shared.installationProgress(for: storeApp)
-            cell.bannerView.button.progress = progress
-            
-            if let versionDate = storeApp.latestSupportedVersion?.date, versionDate > Date()
-            {
-                cell.bannerView.button.countdownDate = versionDate
-            }
-            else
-            {
-                cell.bannerView.button.countdownDate = nil
-            }
-
-            // Make sure refresh button is correct size.
-            cell.layoutIfNeeded()
-            
-            if let progress = AppManager.shared.installationProgress(for: storeApp), progress.fractionCompleted < 1.0
-            {
-                cell.bannerView.button.progress = progress
-            }
-            else
-            {
-                cell.bannerView.button.progress = nil
-            }
+            cell.bannerView.iconImageView.isIndicatingActivity = true
         }
         dataSource.prefetchHandler = { (storeApp, indexPath, completion) -> Foundation.Operation? in
             return RSTAsyncBlockOperation { (operation) in
@@ -404,64 +374,93 @@ extension SourceDetailContentViewController
 
 private extension SourceDetailContentViewController
 {
-    @objc func addSourceThenDownloadApp(_ sender: UIButton)
+    @objc func performAppAction(_ sender: PillButton)
     {
         let point = self.collectionView.convert(sender.center, from: sender.superview)
         guard let indexPath = self.collectionView.indexPathForItem(at: point) else { return }
         
-        sender.isIndicatingActivity = true
-        
         let storeApp = self.dataSource.item(at: indexPath) as! StoreApp
         
-        Task<Void, Never> {
+        if let installedApp = storeApp.installedApp, !installedApp.isUpdateAvailable
+        {
+            self.open(installedApp)
+        }
+        else
+        {
+            sender.isIndicatingActivity = true
+            
+            Task<Void, Never> {
+                await self.addSourceThenDownloadApp(storeApp)
+                sender.isIndicatingActivity = false
+            }
+        }
+    }
+    
+    func addSourceThenDownloadApp(_ storeApp: StoreApp) async
+    {
+        do
+        {
+            let isAdded = try await self.source.isAdded
+            if !isAdded
+            {
+                let message = String(format: NSLocalizedString("You must add this source before you can install apps from it.\n\n“%@” will begin downloading once it has been added.", comment: ""), storeApp.name)
+                try await AppManager.shared.add(self.source, message: message, presentingViewController: self)
+            }
+            
             do
             {
-                let isAdded = try await self.source.isAdded
-                if !isAdded
-                {
-                    let message = String(format: NSLocalizedString("You must add this source before you can install apps from it.\n\n“%@” will begin downloading once it has been added.", comment: ""), storeApp.name)
-                    try await AppManager.shared.add(self.source, message: message, presentingViewController: self)
-                }
-                
-                do
-                {
-                    try await self.downloadApp(storeApp)
-                }
-                catch OperationError.cancelled {}
-                catch
-                {
-                    let toastView = ToastView(error: error)
-                    toastView.opensErrorLog = true
-                    toastView.show(in: self)
-                }
+                try await self.downloadApp(storeApp)
             }
             catch is CancellationError {}
             catch
             {
-                await self.presentAlert(title: NSLocalizedString("Unable to Add Source", comment: ""), message: error.localizedDescription)
+                let toastView = ToastView(error: error)
+                toastView.opensErrorLog = true
+                toastView.show(in: self)
             }
-            
-            sender.isIndicatingActivity = false
-            self.collectionView.reloadSections([Section.featuredApps.rawValue])
         }
+        catch is CancellationError {}
+        catch
+        {
+            await self.presentAlert(title: NSLocalizedString("Unable to Add Source", comment: ""), message: error.localizedDescription)
+        }
+        
+        self.collectionView.reloadSections([Section.featuredApps.rawValue])
     }
     
+    @MainActor
     func downloadApp(_ storeApp: StoreApp) async throws
     {
         try await withCheckedThrowingContinuation { (continuation: CheckedContinuation<Void, Error>) in
-            AppManager.shared.install(storeApp, presentingViewController: self) { result in
-                continuation.resume(with: result.map { _ in })
+            if let installedApp = storeApp.installedApp, installedApp.isUpdateAvailable
+            {
+                AppManager.shared.update(installedApp, presentingViewController: self) { result in
+                    continuation.resume(with: result.map { _ in () })
+                }
+            }
+            else
+            {
+                AppManager.shared.install(storeApp, presentingViewController: self) { result in
+                    continuation.resume(with: result.map { _ in () })
+                }
             }
             
-            guard let index = self.appsDataSource.items.firstIndex(of: storeApp) else {
-                self.collectionView.reloadSections([Section.featuredApps.rawValue])
-                return
+            UIView.performWithoutAnimation {
+                guard let index = self.appsDataSource.items.firstIndex(of: storeApp) else {
+                    self.collectionView.reloadSections([Section.featuredApps.rawValue])
+                    return
+                }
+                
+                let indexPath = IndexPath(item: index, section: Section.featuredApps.rawValue)
+                self.collectionView.reloadItems(at: [indexPath])
             }
-            
-            let indexPath = IndexPath(item: index, section: Section.featuredApps.rawValue)
-            self.collectionView.reloadItems(at: [indexPath])
         }
     }
+    
+    func open(_ installedApp: InstalledApp)
+    {
+        UIApplication.shared.open(installedApp.openAppURL)
+    }
 }
 
 extension SourceDetailContentViewController: ScrollableContentViewController
diff --git a/AltStoreCore/Model/InstalledApp.swift b/AltStoreCore/Model/InstalledApp.swift
index 79f49698..c38e62f1 100644
--- a/AltStoreCore/Model/InstalledApp.swift
+++ b/AltStoreCore/Model/InstalledApp.swift
@@ -336,6 +336,13 @@ public extension InstalledApp
         let openAppURL = URL(string: "altstore-" + app.bundleIdentifier + "://")!
         return openAppURL
     }
+    
+    var isUpdateAvailable: Bool {
+        guard let storeApp = self.storeApp, let latestVersion = storeApp.latestSupportedVersion else { return false }
+        
+        let isUpdateAvailable = !self.matches(latestVersion)
+        return isUpdateAvailable
+    }
 }
 
 public extension InstalledApp