diff --git a/src/Android/MainApplication.cs b/src/Android/MainApplication.cs
index ee6bb23df..6c5a54729 100644
--- a/src/Android/MainApplication.cs
+++ b/src/Android/MainApplication.cs
@@ -129,6 +129,7 @@ namespace Bit.Android
                 .RegisterType<IAuthApiRepository, AuthApiRepository>(new ContainerControlledLifetimeManager())
                 .RegisterType<IDeviceApiRepository, DeviceApiRepository>(new ContainerControlledLifetimeManager())
                 .RegisterType<IAccountsApiRepository, AccountsApiRepository>(new ContainerControlledLifetimeManager())
+                .RegisterType<ICipherApiRepository, CipherApiRepository>(new ContainerControlledLifetimeManager())
                 // Other
                 .RegisterInstance(CrossDeviceInfo.Current, new ContainerControlledLifetimeManager())
                 .RegisterInstance(CrossSettings.Current, new ContainerControlledLifetimeManager())
diff --git a/src/App/Abstractions/Repositories/ICipherApiRepository.cs b/src/App/Abstractions/Repositories/ICipherApiRepository.cs
new file mode 100644
index 000000000..a25dae4bd
--- /dev/null
+++ b/src/App/Abstractions/Repositories/ICipherApiRepository.cs
@@ -0,0 +1,13 @@
+using System;
+using System.Threading.Tasks;
+using Bit.App.Models.Api;
+
+namespace Bit.App.Abstractions
+{
+    public interface ICipherApiRepository
+    {
+        Task<ApiResult<CipherResponse>> GetByIdAsync(string id);
+        Task<ApiResult<ListResponse<CipherResponse>>> GetAsync();
+        Task<ApiResult<CipherHistoryResponse>> GetByRevisionDateWithHistoryAsync(DateTime since);
+    }
+}
\ No newline at end of file
diff --git a/src/App/Abstractions/Repositories/IFolderApiRepository.cs b/src/App/Abstractions/Repositories/IFolderApiRepository.cs
index c46e84aa4..74bb57985 100644
--- a/src/App/Abstractions/Repositories/IFolderApiRepository.cs
+++ b/src/App/Abstractions/Repositories/IFolderApiRepository.cs
@@ -6,7 +6,5 @@ using Bit.App.Models.Api;
 namespace Bit.App.Abstractions
 {
     public interface IFolderApiRepository : IApiRepository<FolderRequest, FolderResponse, string>
-    {
-        Task<ApiResult<ListResponse<FolderResponse>>> GetByRevisionDateAsync(DateTime since);
-    }
+    { }
 }
\ No newline at end of file
diff --git a/src/App/Abstractions/Repositories/ISiteApiRepository.cs b/src/App/Abstractions/Repositories/ISiteApiRepository.cs
index 6cd45b70d..eb13beb6a 100644
--- a/src/App/Abstractions/Repositories/ISiteApiRepository.cs
+++ b/src/App/Abstractions/Repositories/ISiteApiRepository.cs
@@ -7,6 +7,5 @@ namespace Bit.App.Abstractions
 {
     public interface ISiteApiRepository : IApiRepository<SiteRequest, SiteResponse, string>
     {
-        Task<ApiResult<ListResponse<SiteResponse>>> GetByRevisionDateAsync(DateTime since);
     }
 }
\ No newline at end of file
diff --git a/src/App/Abstractions/Services/ISyncService.cs b/src/App/Abstractions/Services/ISyncService.cs
index 4317e67da..b77107ddc 100644
--- a/src/App/Abstractions/Services/ISyncService.cs
+++ b/src/App/Abstractions/Services/ISyncService.cs
@@ -4,6 +4,10 @@ namespace Bit.App.Abstractions
 {
     public interface ISyncService
     {
-        Task<bool> SyncAsync();
+        Task<bool> SyncAsync(string id);
+        Task<bool> SyncDeleteFolderAsync(string id);
+        Task<bool> SyncDeleteSiteAsync(string id);
+        Task<bool> FullSyncAsync();
+        Task<bool> IncrementalSyncAsync();
     }
-}
\ No newline at end of file
+}
diff --git a/src/App/App.csproj b/src/App/App.csproj
index 32e81f426..fee663757 100644
--- a/src/App/App.csproj
+++ b/src/App/App.csproj
@@ -67,9 +67,12 @@
     <Compile Include="Controls\FormPickerCell.cs" />
     <Compile Include="Controls\FormEntryCell.cs" />
     <Compile Include="Controls\PinControl.cs" />
+    <Compile Include="Enums\CipherType.cs" />
+    <Compile Include="Enums\PushType.cs" />
     <Compile Include="Enums\ReturnType.cs" />
     <Compile Include="Models\Api\ApiError.cs" />
     <Compile Include="Models\Api\ApiResult.cs" />
+    <Compile Include="Models\Api\FolderDataModel.cs" />
     <Compile Include="Models\Api\Request\DeviceTokenRequest.cs" />
     <Compile Include="Models\Api\Request\FolderRequest.cs" />
     <Compile Include="Models\Api\Request\DeviceRequest.cs" />
@@ -77,6 +80,8 @@
     <Compile Include="Models\Api\Request\SiteRequest.cs" />
     <Compile Include="Models\Api\Request\TokenRequest.cs" />
     <Compile Include="Models\Api\Request\TokenTwoFactorRequest.cs" />
+    <Compile Include="Models\Api\Response\CipherHistoryResponse.cs" />
+    <Compile Include="Models\Api\Response\CipherResponse.cs" />
     <Compile Include="Models\Api\Response\ErrorResponse.cs" />
     <Compile Include="Models\Api\Response\FolderResponse.cs" />
     <Compile Include="Models\Api\Response\ListResponse.cs" />
@@ -84,6 +89,7 @@
     <Compile Include="Models\Api\Response\SiteResponse.cs" />
     <Compile Include="Models\Api\Response\TokenResponse.cs" />
     <Compile Include="Models\Api\Response\ProfileResponse.cs" />
+    <Compile Include="Models\Api\SiteDataModel.cs" />
     <Compile Include="Models\Cipher.cs" />
     <Compile Include="Models\CipherString.cs" />
     <Compile Include="Models\Data\FolderData.cs" />
@@ -93,6 +99,7 @@
     <Compile Include="Models\Folder.cs" />
     <Compile Include="Models\Page\SettingsFolderPageModel.cs" />
     <Compile Include="Models\Page\PinPageModel.cs" />
+    <Compile Include="Models\PushNotification.cs" />
     <Compile Include="Models\Site.cs" />
     <Compile Include="Models\Page\VaultViewSitePageModel.cs" />
     <Compile Include="Pages\HomePage.cs" />
@@ -116,6 +123,8 @@
     <Compile Include="Repositories\AuthApiRepository.cs" />
     <Compile Include="Abstractions\Repositories\IAuthApiRepository.cs" />
     <Compile Include="Repositories\DeviceApiRepository.cs" />
+    <Compile Include="Repositories\CipherApiRepository.cs" />
+    <Compile Include="Abstractions\Repositories\ICipherApiRepository.cs" />
     <Compile Include="Repositories\SiteApiRepository.cs" />
     <Compile Include="Repositories\FolderApiRepository.cs" />
     <Compile Include="Repositories\SiteRepository.cs" />
diff --git a/src/App/Enums/CipherType.cs b/src/App/Enums/CipherType.cs
new file mode 100644
index 000000000..5d364571b
--- /dev/null
+++ b/src/App/Enums/CipherType.cs
@@ -0,0 +1,8 @@
+namespace Bit.App.Enums
+{
+    public enum CipherType : short
+    {
+        Folder = 0,
+        Site = 1
+    }
+}
diff --git a/src/App/Enums/PushType.cs b/src/App/Enums/PushType.cs
new file mode 100644
index 000000000..3d8586787
--- /dev/null
+++ b/src/App/Enums/PushType.cs
@@ -0,0 +1,11 @@
+namespace Bit.App.Enums
+{
+    public enum PushType : short
+    {
+        SyncCipherUpdate = 0,
+        SyncCipherCreate = 1,
+        SyncSiteDelete = 2,
+        SyncFolderDelete = 3,
+        SyncCiphers = 4
+    }
+}
diff --git a/src/App/Models/Api/FolderDataModel.cs b/src/App/Models/Api/FolderDataModel.cs
new file mode 100644
index 000000000..a5d7d7b6e
--- /dev/null
+++ b/src/App/Models/Api/FolderDataModel.cs
@@ -0,0 +1,7 @@
+namespace Bit.App.Models.Api
+{
+    public class FolderDataModel
+    {
+        public string Name { get; set; }
+    }
+}
diff --git a/src/App/Models/Api/Response/CipherHistoryResponse.cs b/src/App/Models/Api/Response/CipherHistoryResponse.cs
new file mode 100644
index 000000000..ef7bd4aa0
--- /dev/null
+++ b/src/App/Models/Api/Response/CipherHistoryResponse.cs
@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+
+namespace Bit.App.Models.Api
+{
+    public class CipherHistoryResponse
+    {
+        public IEnumerable<CipherResponse> Revised { get; set; }
+        public IEnumerable<string> Deleted { get; set; }
+    }
+}
diff --git a/src/App/Models/Api/Response/CipherResponse.cs b/src/App/Models/Api/Response/CipherResponse.cs
new file mode 100644
index 000000000..d22e481e1
--- /dev/null
+++ b/src/App/Models/Api/Response/CipherResponse.cs
@@ -0,0 +1,15 @@
+using Bit.App.Enums;
+using System;
+
+namespace Bit.App.Models.Api
+{
+    public class CipherResponse
+    {
+        public string Id { get; set; }
+        public string FolderId { get; set; }
+        public CipherType Type { get; set; }
+        public bool Favorite { get; set; }
+        public dynamic Data { get; set; }
+        public DateTime RevisionDate { get; set; }
+    }
+}
diff --git a/src/App/Models/Api/SiteDataModel.cs b/src/App/Models/Api/SiteDataModel.cs
new file mode 100644
index 000000000..a86da09a0
--- /dev/null
+++ b/src/App/Models/Api/SiteDataModel.cs
@@ -0,0 +1,11 @@
+namespace Bit.App.Models.Api
+{
+    public class SiteDataModel
+    {
+        public string Name { get; set; }
+        public string Uri { get; set; }
+        public string Username { get; set; }
+        public string Password { get; set; }
+        public string Notes { get; set; }
+    }
+}
diff --git a/src/App/Models/Data/FolderData.cs b/src/App/Models/Data/FolderData.cs
index fd38e36c2..9eaf06b10 100644
--- a/src/App/Models/Data/FolderData.cs
+++ b/src/App/Models/Data/FolderData.cs
@@ -25,6 +25,24 @@ namespace Bit.App.Models.Data
             Name = folder.Name;
         }
 
+        public FolderData(CipherResponse cipher, string userId)
+        {
+            if(cipher.Type != Enums.CipherType.Folder)
+            {
+                throw new ArgumentException(nameof(cipher.Type));
+            }
+
+            var data = cipher.Data as FolderDataModel;
+            if(data == null)
+            {
+                throw new ArgumentException(nameof(cipher.Data));
+            }
+
+            Id = cipher.Id;
+            UserId = userId;
+            Name = data.Name;
+        }
+
         [PrimaryKey]
         public string Id { get; set; }
         [Indexed]
diff --git a/src/App/Models/Data/SiteData.cs b/src/App/Models/Data/SiteData.cs
index 9a1921056..48620f7db 100644
--- a/src/App/Models/Data/SiteData.cs
+++ b/src/App/Models/Data/SiteData.cs
@@ -37,6 +37,29 @@ namespace Bit.App.Models.Data
             Favorite = site.Favorite;
         }
 
+        public SiteData(CipherResponse cipher, string userId)
+        {
+            if(cipher.Type != Enums.CipherType.Site)
+            {
+                throw new ArgumentException(nameof(cipher.Type));
+            }
+
+            var data = cipher.Data as SiteDataModel;
+            if(data == null)
+            {
+                throw new ArgumentException(nameof(cipher.Data));
+            }
+
+            Id = cipher.Id;
+            UserId = userId;
+            Name = data.Name;
+            Uri = data.Uri;
+            Username = data.Username;
+            Password = data.Password;
+            Notes = data.Notes;
+            Favorite = cipher.Favorite;
+        }
+
         [PrimaryKey]
         public string Id { get; set; }
         public string FolderId { get; set; }
diff --git a/src/App/Models/Page/VaultListPageModel.cs b/src/App/Models/Page/VaultListPageModel.cs
index 4d3fd73d8..3576aaed8 100644
--- a/src/App/Models/Page/VaultListPageModel.cs
+++ b/src/App/Models/Page/VaultListPageModel.cs
@@ -15,7 +15,7 @@ namespace Bit.App.Models.Page
                 Id = site.Id;
                 FolderId = folderId;
                 Name = site.Name?.Decrypt();
-                Username = site.Username?.Decrypt() ?? " ";
+                Username = site.Username?.Decrypt();
                 Password = site.Password?.Decrypt();
                 Uri = site.Uri?.Decrypt();
             }
diff --git a/src/App/Models/PushNotification.cs b/src/App/Models/PushNotification.cs
new file mode 100644
index 000000000..2fe72e27e
--- /dev/null
+++ b/src/App/Models/PushNotification.cs
@@ -0,0 +1,19 @@
+using Bit.App.Enums;
+
+namespace Bit.App.Models
+{
+    public class PushNotification
+    {
+        public PushType Type { get; set; }
+    }
+
+    public class SyncPushNotification : PushNotification
+    {
+        public string UserId { get; set; }
+    }
+
+    public class SyncCipherPushNotification : SyncPushNotification
+    {
+        public string CipherId { get; set; }
+    }
+}
diff --git a/src/App/Repositories/CipherApiRepository.cs b/src/App/Repositories/CipherApiRepository.cs
new file mode 100644
index 000000000..c44199107
--- /dev/null
+++ b/src/App/Repositories/CipherApiRepository.cs
@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Threading.Tasks;
+using Bit.App.Abstractions;
+using Bit.App.Models.Api;
+using Newtonsoft.Json;
+
+namespace Bit.App.Repositories
+{
+    public class CipherApiRepository : BaseApiRepository, ICipherApiRepository
+    {
+        protected override string ApiRoute => "ciphers";
+
+        public virtual async Task<ApiResult<CipherResponse>> GetByIdAsync(string id)
+        {
+            var requestMessage = new TokenHttpRequestMessage()
+            {
+                Method = HttpMethod.Get,
+                RequestUri = new Uri(Client.BaseAddress, string.Concat(ApiRoute, "/", id)),
+            };
+
+            var response = await Client.SendAsync(requestMessage);
+            if(!response.IsSuccessStatusCode)
+            {
+                return await HandleErrorAsync<CipherResponse>(response);
+            }
+
+            var responseContent = await response.Content.ReadAsStringAsync();
+            var responseObj = JsonConvert.DeserializeObject<CipherResponse>(responseContent);
+            return ApiResult<CipherResponse>.Success(responseObj, response.StatusCode);
+        }
+
+        public virtual async Task<ApiResult<ListResponse<CipherResponse>>> GetAsync()
+        {
+            var requestMessage = new TokenHttpRequestMessage()
+            {
+                Method = HttpMethod.Get,
+                RequestUri = new Uri(Client.BaseAddress, ApiRoute),
+            };
+
+            var response = await Client.SendAsync(requestMessage);
+            if(!response.IsSuccessStatusCode)
+            {
+                return await HandleErrorAsync<ListResponse<CipherResponse>>(response);
+            }
+
+            var responseContent = await response.Content.ReadAsStringAsync();
+            var responseObj = JsonConvert.DeserializeObject<ListResponse<CipherResponse>>(responseContent);
+            return ApiResult<ListResponse<CipherResponse>>.Success(responseObj, response.StatusCode);
+        }
+
+        public virtual async Task<ApiResult<CipherHistoryResponse>> GetByRevisionDateWithHistoryAsync(DateTime since)
+        {
+            var requestMessage = new TokenHttpRequestMessage()
+            {
+                Method = HttpMethod.Get,
+                RequestUri = new Uri(Client.BaseAddress, string.Concat(ApiRoute, "?since=", since)),
+            };
+
+            var response = await Client.SendAsync(requestMessage);
+            if(!response.IsSuccessStatusCode)
+            {
+                return await HandleErrorAsync<CipherHistoryResponse>(response);
+            }
+
+            var responseContent = await response.Content.ReadAsStringAsync();
+            var responseObj = JsonConvert.DeserializeObject<CipherHistoryResponse>(responseContent);
+            return ApiResult<CipherHistoryResponse>.Success(responseObj, response.StatusCode);
+        }
+    }
+}
diff --git a/src/App/Repositories/SiteApiRepository.cs b/src/App/Repositories/SiteApiRepository.cs
index 67f746b65..a90ca3e6d 100644
--- a/src/App/Repositories/SiteApiRepository.cs
+++ b/src/App/Repositories/SiteApiRepository.cs
@@ -11,24 +11,5 @@ namespace Bit.App.Repositories
     public class SiteApiRepository : ApiRepository<SiteRequest, SiteResponse, string>, ISiteApiRepository
     {
         protected override string ApiRoute => "sites";
-
-        public virtual async Task<ApiResult<ListResponse<SiteResponse>>> GetByRevisionDateAsync(DateTime since)
-        {
-            var requestMessage = new TokenHttpRequestMessage()
-            {
-                Method = HttpMethod.Get,
-                RequestUri = new Uri(Client.BaseAddress, string.Concat(ApiRoute, "?since=", since)),
-            };
-
-            var response = await Client.SendAsync(requestMessage);
-            if(!response.IsSuccessStatusCode)
-            {
-                return await HandleErrorAsync<ListResponse<SiteResponse>>(response);
-            }
-
-            var responseContent = await response.Content.ReadAsStringAsync();
-            var responseObj = JsonConvert.DeserializeObject<ListResponse<SiteResponse>>(responseContent);
-            return ApiResult<ListResponse<SiteResponse>>.Success(responseObj, response.StatusCode);
-        }
     }
 }
diff --git a/src/App/Services/PushNotificationListener.cs b/src/App/Services/PushNotificationListener.cs
index 529cb293b..79d7d6173 100644
--- a/src/App/Services/PushNotificationListener.cs
+++ b/src/App/Services/PushNotificationListener.cs
@@ -4,6 +4,7 @@ using PushNotification.Plugin;
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Bit.App.Abstractions;
+using Bit.App.Models;
 
 namespace Bit.App.Services
 {
@@ -31,6 +32,29 @@ namespace Bit.App.Services
         {
             _showNotification = false;
             Debug.WriteLine("Message Arrived: {0}", JsonConvert.SerializeObject(values));
+
+            var type = (Enums.PushType)values.GetValue("type", System.StringComparison.OrdinalIgnoreCase).ToObject<short>();
+            switch(type)
+            {
+                case Enums.PushType.SyncCipherUpdate:
+                case Enums.PushType.SyncCipherCreate:
+                    var createUpdateMessage = values.ToObject<SyncCipherPushNotification>();
+                    _syncService.SyncAsync(createUpdateMessage.CipherId);
+                    break;
+                case Enums.PushType.SyncFolderDelete:
+                    var folderDeleteMessage = values.ToObject<SyncCipherPushNotification>();
+                    _syncService.SyncDeleteFolderAsync(folderDeleteMessage.CipherId);
+                    break;
+                case Enums.PushType.SyncSiteDelete:
+                    var siteDeleteMessage = values.ToObject<SyncCipherPushNotification>();
+                    _syncService.SyncDeleteFolderAsync(siteDeleteMessage.CipherId);
+                    break;
+                case Enums.PushType.SyncCiphers:
+                    _syncService.FullSyncAsync();
+                    break;
+                default:
+                    break;
+            }
         }
 
         public async void OnRegistered(string token, DeviceType deviceType)
diff --git a/src/App/Services/SyncService.cs b/src/App/Services/SyncService.cs
index 0b614f168..e254dac60 100644
--- a/src/App/Services/SyncService.cs
+++ b/src/App/Services/SyncService.cs
@@ -4,6 +4,8 @@ using System.Threading.Tasks;
 using Bit.App.Abstractions;
 using Bit.App.Models.Data;
 using Plugin.Settings.Abstractions;
+using Bit.App.Models.Api;
+using System.Collections.Generic;
 
 namespace Bit.App.Services
 {
@@ -11,6 +13,7 @@ namespace Bit.App.Services
     {
         private const string LastSyncKey = "lastSync";
 
+        private readonly ICipherApiRepository _cipherApiRepository;
         private readonly IFolderApiRepository _folderApiRepository;
         private readonly ISiteApiRepository _siteApiRepository;
         private readonly IFolderRepository _folderRepository;
@@ -19,6 +22,7 @@ namespace Bit.App.Services
         private readonly ISettings _settings;
 
         public SyncService(
+            ICipherApiRepository cipherApiRepository,
             IFolderApiRepository folderApiRepository,
             ISiteApiRepository siteApiRepository,
             IFolderRepository folderRepository,
@@ -26,6 +30,7 @@ namespace Bit.App.Services
             IAuthService authService,
             ISettings settings)
         {
+            _cipherApiRepository = cipherApiRepository;
             _folderApiRepository = folderApiRepository;
             _siteApiRepository = siteApiRepository;
             _folderRepository = folderRepository;
@@ -34,36 +39,145 @@ namespace Bit.App.Services
             _settings = settings;
         }
 
-        public async Task<bool> SyncAsync()
+        public async Task<bool> SyncAsync(string id)
         {
-            var now = DateTime.UtcNow;
-            var lastSync = _settings.GetValueOrDefault(LastSyncKey, now.AddYears(-100));
-
-            var siteTask = SyncSitesAsync(lastSync);
-            var folderTask = SyncFoldersAsync(lastSync);
-            await Task.WhenAll(siteTask, folderTask);
-
-            if(await siteTask && await folderTask && folderTask.Exception == null && siteTask.Exception == null)
-            {
-                _settings.AddOrUpdateValue(LastSyncKey, now);
-                return true;
-            }
-
-            return false;
-        }
-
-        private async Task<bool> SyncFoldersAsync(DateTime lastSync)
-        {
-            var folderResponse = await _folderApiRepository.GetAsync();
-            if(!folderResponse.Succeeded)
+            if(!_authService.IsAuthenticated)
             {
                 return false;
             }
 
-            var serverFolders = folderResponse.Result.Data;
+            var cipher = await _cipherApiRepository.GetByIdAsync(id);
+            if(!cipher.Succeeded)
+            {
+                return false;
+            }
+
+            switch(cipher.Result.Type)
+            {
+                case Enums.CipherType.Folder:
+                    var folderData = new FolderData(cipher.Result, _authService.UserId);
+                    var existingLocalFolder = _folderRepository.GetByIdAsync(id);
+                    if(existingLocalFolder == null)
+                    {
+                        await _folderRepository.InsertAsync(folderData);
+                    }
+                    else
+                    {
+                        await _folderRepository.UpdateAsync(folderData);
+                    }
+                    break;
+                case Enums.CipherType.Site:
+                    var siteData = new SiteData(cipher.Result, _authService.UserId);
+                    var existingLocalSite = _siteRepository.GetByIdAsync(id);
+                    if(existingLocalSite == null)
+                    {
+                        await _siteRepository.InsertAsync(siteData);
+                    }
+                    else
+                    {
+                        await _siteRepository.UpdateAsync(siteData);
+                    }
+                    break;
+                default:
+                    return false;
+            }
+
+            return true;
+        }
+
+        public async Task<bool> SyncDeleteFolderAsync(string id)
+        {
+            if(!_authService.IsAuthenticated)
+            {
+                return false;
+            }
+
+            await _folderRepository.DeleteAsync(id);
+            return true;
+        }
+
+        public async Task<bool> SyncDeleteSiteAsync(string id)
+        {
+            if(!_authService.IsAuthenticated)
+            {
+                return false;
+            }
+
+            await _siteRepository.DeleteAsync(id);
+            return true;
+        }
+
+        public async Task<bool> FullSyncAsync()
+        {
+            if(!_authService.IsAuthenticated)
+            {
+                return false;
+            }
+
+            var now = DateTime.UtcNow;
+            var ciphers = await _cipherApiRepository.GetAsync();
+            if(!ciphers.Succeeded)
+            {
+                return false;
+            }
+
+            var siteTask = SyncSitesAsync(ciphers.Result.Data.Where(c => c.Type == Enums.CipherType.Site), true);
+            var folderTask = SyncFoldersAsync(ciphers.Result.Data.Where(c => c.Type == Enums.CipherType.Folder), true);
+            await Task.WhenAll(siteTask, folderTask);
+
+            if(folderTask.Exception == null || siteTask.Exception == null)
+            {
+                return false;
+            }
+
+            _settings.AddOrUpdateValue(LastSyncKey, now);
+            return true;
+        }
+
+        public async Task<bool> IncrementalSyncAsync()
+        {
+            if(!_authService.IsAuthenticated)
+            {
+                return false;
+            }
+
+            var now = DateTime.UtcNow;
+            DateTime? lastSync = _settings.GetValueOrDefault<DateTime?>(LastSyncKey);
+            if(lastSync == null)
+            {
+                return await FullSyncAsync();
+            }
+
+            var ciphers = await _cipherApiRepository.GetByRevisionDateWithHistoryAsync(lastSync.Value);
+            if(!ciphers.Succeeded)
+            {
+                return false;
+            }
+
+            var siteTask = SyncSitesAsync(ciphers.Result.Revised.Where(c => c.Type == Enums.CipherType.Site), false);
+            var folderTask = SyncFoldersAsync(ciphers.Result.Revised.Where(c => c.Type == Enums.CipherType.Folder), false);
+
+            foreach(var cipherId in ciphers.Result.Deleted)
+            {
+                await _siteRepository.DeleteAsync(cipherId);
+            }
+
+            await Task.WhenAll(siteTask, folderTask);
+
+            if(folderTask.Exception == null || siteTask.Exception == null)
+            {
+                return false;
+            }
+
+            _settings.AddOrUpdateValue(LastSyncKey, now);
+            return true;
+        }
+
+        private async Task SyncFoldersAsync(IEnumerable<CipherResponse> serverFolders, bool deleteMissing)
+        {
             var localFolders = await _folderRepository.GetAllByUserIdAsync(_authService.UserId);
 
-            foreach(var serverFolder in serverFolders.Where(f => f.RevisionDate >= lastSync))
+            foreach(var serverFolder in serverFolders)
             {
                 var data = new FolderData(serverFolder, _authService.UserId);
                 var existingLocalFolder = localFolders.SingleOrDefault(f => f.Id == serverFolder.Id);
@@ -77,26 +191,22 @@ namespace Bit.App.Services
                 }
             }
 
+            if(!deleteMissing)
+            {
+                return;
+            }
+
             foreach(var folder in localFolders.Where(localFolder => !serverFolders.Any(serverFolder => serverFolder.Id == localFolder.Id)))
             {
                 await _folderRepository.DeleteAsync(folder.Id);
             }
-
-            return true;
         }
 
-        private async Task<bool> SyncSitesAsync(DateTime lastSync)
+        private async Task SyncSitesAsync(IEnumerable<CipherResponse> serverSites, bool deleteMissing)
         {
-            var siteResponse = await _siteApiRepository.GetAsync();
-            if(!siteResponse.Succeeded)
-            {
-                return false;
-            }
-
-            var serverSites = siteResponse.Result.Data;
             var localSites = await _siteRepository.GetAllByUserIdAsync(_authService.UserId);
 
-            foreach(var serverSite in serverSites.Where(s => s.RevisionDate >= lastSync))
+            foreach(var serverSite in serverSites)
             {
                 var data = new SiteData(serverSite, _authService.UserId);
                 var existingLocalSite = localSites.SingleOrDefault(s => s.Id == serverSite.Id);
@@ -110,12 +220,15 @@ namespace Bit.App.Services
                 }
             }
 
+            if(!deleteMissing)
+            {
+                return;
+            }
+
             foreach(var site in localSites.Where(localSite => !serverSites.Any(serverSite => serverSite.Id == localSite.Id)))
             {
                 await _siteRepository.DeleteAsync(site.Id);
             }
-
-            return true;
         }
     }
 }
diff --git a/src/iOS/AppDelegate.cs b/src/iOS/AppDelegate.cs
index 2912c1a2d..5828a0003 100644
--- a/src/iOS/AppDelegate.cs
+++ b/src/iOS/AppDelegate.cs
@@ -189,6 +189,7 @@ namespace Bit.iOS
                 .RegisterType<IAuthApiRepository, AuthApiRepository>(new ContainerControlledLifetimeManager())
                 .RegisterType<IDeviceApiRepository, DeviceApiRepository>(new ContainerControlledLifetimeManager())
                 .RegisterType<IAccountsApiRepository, AccountsApiRepository>(new ContainerControlledLifetimeManager())
+                .RegisterType<ICipherApiRepository, CipherApiRepository>(new ContainerControlledLifetimeManager())
                 // Other
                 .RegisterInstance(CrossDeviceInfo.Current, new ContainerControlledLifetimeManager())
                 .RegisterInstance(CrossConnectivity.Current, new ContainerControlledLifetimeManager())