diff --git a/packages/core/index.d.ts b/packages/core/index.d.ts
index 265c20fbd..3c75a31ad 100644
--- a/packages/core/index.d.ts
+++ b/packages/core/index.d.ts
@@ -105,8 +105,8 @@ export type { InstrumentationMode, TimerInfo } from './profiling';
 export { encoding } from './text';
 export * from './trace';
 export * from './ui';
-import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, executeOnUIThread, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, escapeRegexSymbols, convertString, dismissSoftInput, queueMacrotask, queueGC, throttle, debounce } from './utils';
-import { ClassInfo, getClass, getBaseClasses, getClassInfo, isBoolean, isDefined, isFunction, isNullOrUndefined, isNumber, isObject, isString, isUndefined, toUIString, verifyCallback } from './utils/types';
+import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, executeOnUIThread, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, escapeRegexSymbols, convertString, dismissSoftInput, queueMacrotask, queueGC, throttle, debounce, dataSerialize, dataDeserialize } from './utils';
+import { ClassInfo, getClass, getBaseClasses, getClassInfo, isBoolean, isDefined, isFunction, isNullOrUndefined, isNumber, isObject, isString, isUndefined, toUIString, verifyCallback, numberHasDecimals, numberIs64Bit } from './utils/types';
 export declare const Utils: {
 	GC: typeof GC;
 	RESOURCE_PREFIX: string;
@@ -134,6 +134,10 @@ export declare const Utils: {
 	android: typeof androidUtils;
 	ad: typeof androidUtils;
 	ios: typeof iosUtils;
+	dataSerialize: typeof dataSerialize;
+	dataDeserialize: typeof dataDeserialize;
+	numberHasDecimals: typeof numberHasDecimals;
+	numberIs64Bit: typeof numberIs64Bit;
 	setTimeout: typeof setTimeout;
 	setInterval: typeof setInterval;
 	clearInterval: typeof clearInterval;
diff --git a/packages/core/index.ts b/packages/core/index.ts
index 5786c31bd..7c45937a9 100644
--- a/packages/core/index.ts
+++ b/packages/core/index.ts
@@ -137,8 +137,8 @@ export * from './trace';
 
 export * from './ui';
 
-import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, executeOnUIThread, queueMacrotask, queueGC, debounce, throttle, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, RESOURCE_PREFIX, FILE_PREFIX, escapeRegexSymbols, convertString, dismissSoftInput } from './utils';
-import { ClassInfo, getClass, getBaseClasses, getClassInfo, isBoolean, isDefined, isFunction, isNullOrUndefined, isNumber, isObject, isString, isUndefined, toUIString, verifyCallback } from './utils/types';
+import { GC, isFontIconURI, isDataURI, isFileOrResourcePath, executeOnMainThread, mainThreadify, isMainThread, dispatchToMainThread, executeOnUIThread, queueMacrotask, queueGC, debounce, throttle, releaseNativeObject, getModuleName, openFile, openUrl, isRealDevice, layout, ad as androidUtils, iOSNativeHelper as iosUtils, Source, RESOURCE_PREFIX, FILE_PREFIX, escapeRegexSymbols, convertString, dismissSoftInput, dataDeserialize, dataSerialize } from './utils';
+import { ClassInfo, getClass, getBaseClasses, getClassInfo, isBoolean, isDefined, isFunction, isNullOrUndefined, isNumber, isObject, isString, isUndefined, toUIString, verifyCallback, numberHasDecimals, numberIs64Bit } from './utils/types';
 
 export const Utils = {
 	GC,
@@ -170,6 +170,10 @@ export const Utils = {
 	// legacy (a lot of plugins use the shorthand "ad" Utils.ad instead of Utils.android)
 	ad: androidUtils,
 	ios: iosUtils,
+	dataSerialize,
+	dataDeserialize,
+	numberHasDecimals,
+	numberIs64Bit,
 	setTimeout,
 	setInterval,
 	clearInterval,
diff --git a/packages/core/utils/native-helper.android.ts b/packages/core/utils/native-helper.android.ts
index cdb68a71b..978793ce9 100644
--- a/packages/core/utils/native-helper.android.ts
+++ b/packages/core/utils/native-helper.android.ts
@@ -1,5 +1,143 @@
 import { getNativeApplication, android as androidApp } from '../application';
 import { Trace } from '../trace';
+import { numberHasDecimals, numberIs64Bit } from './types';
+
+export function dataDeserialize(nativeData?: any) {
+	if (nativeData === null || typeof nativeData !== 'object') {
+		return nativeData;
+	}
+	let store;
+
+	switch (nativeData.getClass().getName()) {
+		case 'java.lang.String': {
+			return String(nativeData);
+		}
+
+		case 'java.lang.Boolean': {
+			return String(nativeData) === 'true';
+		}
+
+		case 'java.lang.Float':
+		case 'java.lang.Integer':
+		case 'java.lang.Long':
+		case 'java.lang.Double':
+		case 'java.lang.Short': {
+			return Number(nativeData);
+		}
+
+		case 'org.json.JSONArray': {
+			store = [];
+			for (let j = 0; j < nativeData.length(); j++) {
+				store[j] = dataDeserialize(nativeData.get(j));
+			}
+			break;
+		}
+		case 'org.json.JSONObject': {
+			store = {};
+			let i = nativeData.keys();
+			while (i.hasNext()) {
+				let key = i.next();
+				store[key] = dataDeserialize(nativeData.get(key));
+			}
+			break;
+		}
+
+		case 'androidx.collection.SimpleArrayMap': {
+			const count = nativeData.size();
+			for (let l = 0; l < count; l++) {
+				const key = nativeData.keyAt(l);
+				store[key] = dataDeserialize(nativeData.get(key));
+			}
+			break;
+		}
+
+		case 'androidx.collection.ArrayMap':
+		case 'android.os.Bundle':
+		case 'java.util.HashMap':
+		case 'java.util.Map': {
+			store = {};
+			const keys = nativeData.keySet().toArray();
+			for (let k = 0; k < keys.length; k++) {
+				const key = keys[k];
+				store[key] = dataDeserialize(nativeData.get(key));
+			}
+			break;
+		}
+
+		default:
+			if (typeof nativeData === 'object' && nativeData instanceof java.util.List) {
+				const array = [];
+				const size = nativeData.size();
+				for (let i = 0, n = size; i < n; i++) {
+					array[i] = dataDeserialize(nativeData.get(i));
+				}
+				store = array;
+			} else {
+				store = null;
+			}
+			break;
+	}
+	return store;
+}
+
+export function dataSerialize(data?: any, wrapPrimitives?: boolean) {
+	let store;
+	switch (typeof data) {
+		case 'string':
+		case 'boolean': {
+			if (wrapPrimitives) {
+				if (typeof data === 'string') {
+					return new java.lang.String(data);
+				}
+				return new java.lang.Boolean(data);
+			}
+			return data;
+		}
+		case 'number': {
+			const hasDecimals = numberHasDecimals(data);
+			if (numberIs64Bit(data)) {
+				if (hasDecimals) {
+					return java.lang.Double.valueOf(data);
+				} else {
+					return java.lang.Long.valueOf(data);
+				}
+			} else {
+				if (hasDecimals) {
+					return java.lang.Float.valueOf(data);
+				} else {
+					return java.lang.Integer.valueOf(data);
+				}
+			}
+		}
+
+		case 'object': {
+			if (!data) {
+				return null;
+			}
+
+			if (data instanceof Date) {
+				return new java.util.Date(data.getTime());
+			}
+
+			if (Array.isArray(data)) {
+				store = new java.util.ArrayList();
+				data.forEach((item) => store.add(dataSerialize(item, wrapPrimitives)));
+				return store;
+			}
+
+			if (data.native) {
+				return data.native;
+			}
+
+			store = new java.util.HashMap();
+			Object.keys(data).forEach((key) => store.put(key, dataSerialize(data[key], wrapPrimitives)));
+			return store;
+		}
+
+		default:
+			return null;
+	}
+}
 
 // We are using "ad" here to avoid namespace collision with the global android object
 export namespace ad {
diff --git a/packages/core/utils/native-helper.d.ts b/packages/core/utils/native-helper.d.ts
index 339bc9320..8fed91420 100644
--- a/packages/core/utils/native-helper.d.ts
+++ b/packages/core/utils/native-helper.d.ts
@@ -1,3 +1,14 @@
+/**
+ * Data serialization from JS > Native
+ * @param wrapPrimitives Optionally wrap primitive types (Some APIs may require this)
+ */
+export function dataSerialize(data?: any, wrapPrimitives?: boolean): any;
+/**
+ * Data deserialization from Native > JS
+ * @param nativeData Native platform data
+ */
+export function dataDeserialize(nativeData?: any): any;
+
 /**
  * Module with android specific utilities.
  */
diff --git a/packages/core/utils/native-helper.ios.ts b/packages/core/utils/native-helper.ios.ts
index a685a32c5..d01d85532 100644
--- a/packages/core/utils/native-helper.ios.ts
+++ b/packages/core/utils/native-helper.ios.ts
@@ -1,5 +1,5 @@
 import { Trace } from '../trace';
-import { getClass, isNullOrUndefined } from './types';
+import { getClass, isNullOrUndefined, numberHasDecimals, numberIs64Bit } from './types';
 
 declare let UIImagePickerControllerSourceType: any;
 
@@ -25,6 +25,88 @@ function openFileAtRootModule(filePath: string): boolean {
 	return false;
 }
 
+export function dataDeserialize(nativeData?: any) {
+	if (isNullOrUndefined(nativeData)) {
+		// some native values will already be js null values
+		// calling types.getClass below on null/undefined will cause crash
+		return null;
+	} else {
+		switch (getClass(nativeData)) {
+			case 'NSNull':
+				return null;
+			case 'NSMutableDictionary':
+			case 'NSDictionary':
+				let obj = {};
+				const length = nativeData.count;
+				const keysArray = nativeData.allKeys as NSArray<any>;
+				for (let i = 0; i < length; i++) {
+					const nativeKey = keysArray.objectAtIndex(i);
+					obj[nativeKey] = dataDeserialize(nativeData.objectForKey(nativeKey));
+				}
+				return obj;
+			case 'NSMutableArray':
+			case 'NSArray':
+				let array = [];
+				const len = nativeData.count;
+				for (let i = 0; i < len; i++) {
+					array[i] = dataDeserialize(nativeData.objectAtIndex(i));
+				}
+				return array;
+			default:
+				return nativeData;
+		}
+	}
+}
+
+export function dataSerialize(data: any, wrapPrimitives: boolean = false) {
+	switch (typeof data) {
+		case 'string':
+		case 'boolean': {
+			return data;
+		}
+		case 'number': {
+			const hasDecimals = numberHasDecimals(data);
+			if (numberIs64Bit(data)) {
+				if (hasDecimals) {
+					return NSNumber.alloc().initWithDouble(data);
+				} else {
+					return NSNumber.alloc().initWithLongLong(data);
+				}
+			} else {
+				if (hasDecimals) {
+					return NSNumber.alloc().initWithFloat(data);
+				} else {
+					return data;
+				}
+			}
+		}
+
+		case 'object': {
+			if (data instanceof Date) {
+				return NSDate.dateWithTimeIntervalSince1970(data.getTime() / 1000);
+			}
+
+			if (!data) {
+				return null;
+			}
+
+			if (Array.isArray(data)) {
+				return NSArray.arrayWithArray((<any>data).map(dataSerialize));
+			}
+
+			let node = {} as any;
+			Object.keys(data).forEach(function (key) {
+				let value = data[key];
+				node[key] = dataSerialize(value, wrapPrimitives);
+			});
+			return NSDictionary.dictionaryWithDictionary(node);
+		}
+
+		default:
+			return null;
+	}
+}
+
 export namespace iOSNativeHelper {
 	// TODO: remove for NativeScript 7.0
 	export function getter<T>(_this: any, property: T | { (): T }): T {
@@ -54,60 +136,6 @@ export namespace iOSNativeHelper {
 		}
 	}
 
-	export function dataDeserialize(nativeData?: any) {
-		if (isNullOrUndefined(nativeData)) {
-			// some native values will already be js null values
-			// calling types.getClass below on null/undefined will cause crash
-			return null;
-		} else {
-			switch (getClass(nativeData)) {
-				case 'NSNull':
-					return null;
-				case 'NSMutableDictionary':
-				case 'NSDictionary':
-					let obj = {};
-					const length = nativeData.count;
-					const keysArray = nativeData.allKeys as NSArray<any>;
-					for (let i = 0; i < length; i++) {
-						const nativeKey = keysArray.objectAtIndex(i);
-						obj[nativeKey] = dataDeserialize(nativeData.objectForKey(nativeKey));
-					}
-					return obj;
-				case 'NSMutableArray':
-				case 'NSArray':
-					let array = [];
-					const len = nativeData.count;
-					for (let i = 0; i < len; i++) {
-						array[i] = dataDeserialize(nativeData.objectAtIndex(i));
-					}
-					return array;
-				default:
-					return nativeData;
-			}
-		}
-	}
-
-	export function dataSerialize(data?: any) {
-		switch (typeof data) {
-			case 'number':
-			case 'string':
-			case 'boolean':
-				return data;
-			case 'object':
-				if (Array.isArray(data)) {
-					return NSArray.arrayWithArray(<any>data.map(dataSerialize));
-				}
-
-				let obj = {};
-				for (let key of Object.keys(data)) {
-					obj[key] = dataSerialize(data[key]);
-				}
-				return NSDictionary.dictionaryWithDictionary(<any>obj);
-			default:
-				return NSNull.new();
-		}
-	}
-
 	export function isLandscape(): boolean {
 		console.log('utils.ios.isLandscape() is deprecated; use application.orientation instead');
 
diff --git a/packages/core/utils/types.d.ts b/packages/core/utils/types.d.ts
index a5edb773e..9425edc43 100644
--- a/packages/core/utils/types.d.ts
+++ b/packages/core/utils/types.d.ts
@@ -61,6 +61,18 @@ export function isNullOrUndefined(value: any): boolean;
  */
 export function verifyCallback(value: any): void;
 
+/**
+ * Checks if the number has decimals
+ * @param value Number to check
+ */
+export function numberHasDecimals(value: number): boolean;
+
+/**
+ * Checks if the number is 64 bit
+ * @param value Number to check
+ */
+export function numberIs64Bit(value: number): boolean;
+
 /**
  * A function that gets the class name of an object.
  * @param object The object.
diff --git a/packages/core/utils/types.ts b/packages/core/utils/types.ts
index 7109579ef..1fba0ae3a 100644
--- a/packages/core/utils/types.ts
+++ b/packages/core/utils/types.ts
@@ -44,6 +44,14 @@ export function verifyCallback(value: any) {
 	}
 }
 
+export function numberHasDecimals(value: number): boolean {
+	return !(value % 1 === 0);
+}
+
+export function numberIs64Bit(value: number): boolean {
+	return value < -Math.pow(2, 31) + 1 || value > Math.pow(2, 31) - 1;
+}
+
 const classInfosMap = new Map<Function, ClassInfo>();
 
 // ES3-5 type classes are "function blah()", new ES6+ classes can be "class blah"