Use secure storage for app id so that it will persist over reinstalls. Use separate app identifier for extension in hockeyapp.

src/App/Services/AppIdService.cs

@@ -1,38 +1,38 @@
 using System;
 using Bit.App.Abstractions;
-using Plugin.Settings.Abstractions;
 
 namespace Bit.App.Services
 {
     public class AppIdService : IAppIdService
     {
         private const string AppIdKey = "appId";
-        private readonly ISettings _settings;
+        private readonly ISecureStorageService _secureStorageService;
-        private string _appId;
+        private Guid? _appId;
 
-        public AppIdService(ISettings settings)
+        public AppIdService(ISecureStorageService secureStorageService)
         {
-            _settings = settings;
+            _secureStorageService = secureStorageService;
         }
 
         public string AppId
         {
             get
             {
-                if(!string.IsNullOrWhiteSpace(_appId))
+                if(_appId.HasValue)
                 {
-                    return _appId;
+                    return _appId.Value.ToString();
                 }
 
-                _appId = _settings.GetValueOrDefault<string>(AppIdKey);
+                var appIdBytes = _secureStorageService.Retrieve(AppIdKey);
-                if(!string.IsNullOrWhiteSpace(_appId))
+                if(appIdBytes != null)
                 {
-                    return _appId;
+                    _appId = new Guid(appIdBytes);
+                    return _appId.Value.ToString();
                 }
 
-                _appId = Guid.NewGuid().ToString();
+                _appId = Guid.NewGuid();
-                _settings.AddOrUpdateValue(AppIdKey, _appId);
+                _secureStorageService.Store(AppIdKey, _appId.Value.ToByteArray());
-                return _appId;
+                return _appId.Value.ToString();
             }
         }
     }

src/iOS.Core/HockeyAppCrashManagerDelegate.cs

@@ -1,20 +1,31 @@
 using Bit.App.Abstractions;
 using HockeyApp.iOS;
+using Newtonsoft.Json;
+
 namespace Bit.iOS.Core
 {
     public class HockeyAppCrashManagerDelegate : BITCrashManagerDelegate
     {
         private readonly IAppIdService _appIdService;
+        private readonly IAuthService _authService;
 
         public HockeyAppCrashManagerDelegate(
-            IAppIdService appIdService)
+            IAppIdService appIdService,
+            IAuthService authService)
         {
             _appIdService = appIdService;
+            _authService = authService;
         }
 
         public override string ApplicationLogForCrashManager(BITCrashManager crashManager)
         {
-            return $"AppId:{_appIdService.AppId}";
+            var log = new
+            {
+                AppId = _appIdService.AppId,
+                UserId = _authService.UserId
+            };
+
+            return JsonConvert.SerializeObject(log, Formatting.Indented);
         }
     }
 }

src/iOS.Core/iOS.Core.csproj

@@ -41,6 +41,10 @@
       <HintPath>..\..\packages\HockeySDK.Xamarin.4.1.0-beta3\lib\Xamarin.iOS10\HockeySDK.iOSBindings.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Newtonsoft.Json, Version=9.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Newtonsoft.Json.9.0.1\lib\portable-net45+wp80+win8+wpa81\Newtonsoft.Json.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Plugin.Settings, Version=2.1.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\..\packages\Xam.Plugins.Settings.2.1.0\lib\Xamarin.iOS10\Plugin.Settings.dll</HintPath>
       <Private>True</Private>

src/iOS.Core/packages.config

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="HockeySDK.Xamarin" version="4.1.0-beta3" targetFramework="xamarinios10" />
+  <package id="Newtonsoft.Json" version="9.0.1" targetFramework="xamarinios10" />
   <package id="sqlite-net-pcl" version="1.1.2" targetFramework="xamarinios10" />
   <package id="SQLitePCL.bundle_green" version="0.9.2" targetFramework="xamarinios10" />
   <package id="SQLitePCL.raw" version="0.9.2" targetFramework="xamarinios10" />

src/iOS.Extension/LoadingViewController.cs

@@ -46,10 +46,13 @@ namespace Bit.iOS.Extension
 
             if(!_setupHockeyApp)
             {
-                var crashManagerDelegate = new HockeyAppCrashManagerDelegate(Resolver.Resolve<IAppIdService>());
+                var appIdService = Resolver.Resolve<IAppIdService>();
+                var crashManagerDelegate = new HockeyAppCrashManagerDelegate(
+                    appIdService, Resolver.Resolve<IAuthService>());
                 var manager = HockeyApp.iOS.BITHockeyManager.SharedHockeyManager;
-                manager.Configure("51f96ae568ba45f699a18ad9f63046c3", crashManagerDelegate);
+                manager.Configure("bff5b1d2b6554472b91555a0d4704d4c", crashManagerDelegate);
                 manager.CrashManager.CrashManagerStatus = HockeyApp.iOS.BITCrashManagerStatus.AutoSend;
+                manager.UserId = appIdService.AppId;
                 manager.StartManager();
                 manager.Authenticator.AuthenticateInstallation();
                 _setupHockeyApp = true;

src/iOS/AppDelegate.cs

@@ -18,7 +18,6 @@ using Plugin.Fingerprint.Abstractions;
 using Plugin.Settings.Abstractions;
 using System.Diagnostics;
 using Xamarin.Forms;
-using Bit.App;
 using Bit.iOS.Core.Services;
 using PushNotification.Plugin;
 using Plugin.DeviceInfo;
@@ -44,10 +43,13 @@ namespace Bit.iOS
                 SetIoc();
             }
 
-            var crashManagerDelegate = new HockeyAppCrashManagerDelegate(Resolver.Resolve<IAppIdService>());
+            var appIdService = Resolver.Resolve<IAppIdService>();
+            var crashManagerDelegate = new HockeyAppCrashManagerDelegate(
+                appIdService, Resolver.Resolve<IAuthService>());
             var manager = BITHockeyManager.SharedHockeyManager;
             manager.Configure("51f96ae568ba45f699a18ad9f63046c3", crashManagerDelegate);
             manager.CrashManager.CrashManagerStatus = BITCrashManagerStatus.AutoSend;
+            manager.UserId = appIdService.AppId;
             manager.StartManager();
             manager.Authenticator.AuthenticateInstallation();