diff --git a/src/Core/Utilities/CoreHelpers.cs b/src/Core/Utilities/CoreHelpers.cs
index a999271da..01c6802cf 100644
--- a/src/Core/Utilities/CoreHelpers.cs
+++ b/src/Core/Utilities/CoreHelpers.cs
@@ -1,4 +1,5 @@
 using Bit.Core.Models.Domain;
+using Newtonsoft.Json;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -179,5 +180,25 @@ namespace Bit.Core.Utilities
             }
             return dict;
         }
+
+        public static string SerializeJson(object obj, bool ignoreNulls = false)
+        {
+            var jsonSerializationSettings = new JsonSerializerSettings();
+            if(ignoreNulls)
+            {
+                jsonSerializationSettings.NullValueHandling = NullValueHandling.Ignore;
+            }
+            return JsonConvert.SerializeObject(obj, jsonSerializationSettings);
+        }
+
+        public static T DeserializeJson<T>(string json, bool ignoreNulls = false)
+        {
+            var jsonSerializationSettings = new JsonSerializerSettings();
+            if(ignoreNulls)
+            {
+                jsonSerializationSettings.NullValueHandling = NullValueHandling.Ignore;
+            }
+            return JsonConvert.DeserializeObject<T>(json, jsonSerializationSettings);
+        }
     }
 }
diff --git a/src/iOS.Extension/Models/FillScript.cs b/src/iOS.Core/Models/FillScript.cs
similarity index 99%
rename from src/iOS.Extension/Models/FillScript.cs
rename to src/iOS.Core/Models/FillScript.cs
index 0364d14dd..4353e1a16 100644
--- a/src/iOS.Extension/Models/FillScript.cs
+++ b/src/iOS.Core/Models/FillScript.cs
@@ -4,7 +4,7 @@ using System.Linq;
 using Newtonsoft.Json;
 using System.Text.RegularExpressions;
 
-namespace Bit.iOS.Extension.Models
+namespace Bit.iOS.Core.Models
 {
     public class FillScript
     {
@@ -141,6 +141,17 @@ namespace Bit.iOS.Extension.Models
             SetFillScriptForFocus(filledFields);
         }
 
+        [JsonProperty(PropertyName = "script")]
+        public List<List<string>> Script { get; set; } = new List<List<string>>();
+        [JsonProperty(PropertyName = "documentUUID")]
+        public object DocumentUUID { get; set; }
+        [JsonProperty(PropertyName = "properties")]
+        public object Properties { get; set; } = new object();
+        [JsonProperty(PropertyName = "options")]
+        public object Options { get; set; } = new { animate = false };
+        [JsonProperty(PropertyName = "metadata")]
+        public object MetaData { get; set; } = new object();
+
         private PageDetails.Field FindUsernameField(PageDetails pageDetails, PageDetails.Field passwordField, bool canBeHidden,
             bool checkForm)
         {
@@ -261,16 +272,5 @@ namespace Bit.iOS.Extension.Models
         {
             return Regex.Replace(label, @"(?:\r\n|\r|\n)", string.Empty).Trim().ToLower();
         }
-
-        [JsonProperty(PropertyName = "script")]
-        public List<List<string>> Script { get; set; } = new List<List<string>>();
-        [JsonProperty(PropertyName = "documentUUID")]
-        public object DocumentUUID { get; set; }
-        [JsonProperty(PropertyName = "properties")]
-        public object Properties { get; set; } = new object();
-        [JsonProperty(PropertyName = "options")]
-        public object Options { get; set; } = new { animate = false };
-        [JsonProperty(PropertyName = "metadata")]
-        public object MetaData { get; set; } = new object();
     }
 }
diff --git a/src/iOS.Extension/Models/PageDetails.cs b/src/iOS.Core/Models/PageDetails.cs
similarity index 97%
rename from src/iOS.Extension/Models/PageDetails.cs
rename to src/iOS.Core/Models/PageDetails.cs
index 004173bfc..02d136325 100644
--- a/src/iOS.Extension/Models/PageDetails.cs
+++ b/src/iOS.Core/Models/PageDetails.cs
@@ -1,9 +1,8 @@
 using Newtonsoft.Json;
-using System;
 using System.Collections.Generic;
 using System.Linq;
 
-namespace Bit.iOS.Extension.Models
+namespace Bit.iOS.Core.Models
 {
     public class PageDetails
     {
@@ -48,5 +47,4 @@ namespace Bit.iOS.Extension.Models
             public string Form { get; set; }
         }
     }
-
 }
diff --git a/src/iOS.Core/iOS.Core.csproj b/src/iOS.Core/iOS.Core.csproj
index 8f6a331b9..b046414ec 100644
--- a/src/iOS.Core/iOS.Core.csproj
+++ b/src/iOS.Core/iOS.Core.csproj
@@ -63,6 +63,8 @@
     <Compile Include="Controllers\PasswordGeneratorViewController.cs" />
     <Compile Include="Models\AppExtensionContext.cs" />
     <Compile Include="Models\CipherViewModel.cs" />
+    <Compile Include="Models\FillScript.cs" />
+    <Compile Include="Models\PageDetails.cs" />
     <Compile Include="Models\PasswordGenerationOptions.cs" />
     <Compile Include="Services\DeviceActionService.cs" />
     <Compile Include="Utilities\ASHelpers.cs" />
diff --git a/src/iOS.Extension/LoadingViewController.cs b/src/iOS.Extension/LoadingViewController.cs
index 379bbb647..312323032 100644
--- a/src/iOS.Extension/LoadingViewController.cs
+++ b/src/iOS.Extension/LoadingViewController.cs
@@ -19,8 +19,6 @@ namespace Bit.iOS.Extension
     public partial class LoadingViewController : ExtendedUIViewController
     {
         private Context _context = new Context();
-        private readonly JsonSerializerSettings _jsonSettings =
-            new JsonSerializerSettings { NullValueHandling = NullValueHandling.Ignore };
 
         public LoadingViewController(IntPtr handle)
             : base(handle)
@@ -140,7 +138,7 @@ namespace Bit.iOS.Extension
             if(_context.ProviderType == UTType.PropertyList)
             {
                 var fillScript = new FillScript(_context.Details, username, password, fields);
-                var scriptJson = JsonConvert.SerializeObject(fillScript, _jsonSettings);
+                var scriptJson = CoreHelpers.SerializeJson(fillScript, true);
                 var scriptDict = new NSDictionary(Constants.AppExtensionWebViewPageFillScript, scriptJson);
                 itemData = new NSDictionary(NSJavaScriptExtension.FinalizeArgumentKey, scriptDict);
             }
@@ -154,7 +152,7 @@ namespace Bit.iOS.Extension
                 || _context.ProviderType == Constants.UTTypeAppExtensionFillWebViewAction)
             {
                 var fillScript = new FillScript(_context.Details, username, password, fields);
-                var scriptJson = JsonConvert.SerializeObject(fillScript, _jsonSettings);
+                var scriptJson = CoreHelpers.SerializeJson(fillScript, true);
                 itemData = new NSDictionary(Constants.AppExtensionWebViewPageFillScript, scriptJson);
             }
             else if(_context.ProviderType == Constants.UTTypeAppExtensionSaveLoginAction)
diff --git a/src/iOS.Extension/iOS.Extension.csproj b/src/iOS.Extension/iOS.Extension.csproj
index e575f386b..5b3de6c9d 100644
--- a/src/iOS.Extension/iOS.Extension.csproj
+++ b/src/iOS.Extension/iOS.Extension.csproj
@@ -89,8 +89,6 @@
     <None Include="Info.plist" />
     <None Include="Entitlements.plist" />
     <Compile Include="Models\Context.cs" />
-    <Compile Include="Models\FillScript.cs" />
-    <Compile Include="Models\PageDetails.cs" />
     <Compile Include="PasswordGeneratorViewController.cs" />
     <Compile Include="PasswordGeneratorViewController.designer.cs">
       <DependentUpon>PasswordGeneratorViewController.cs</DependentUpon>