diff --git a/README.md b/README.md
index e95f6db..6bf59b0 100644
--- a/README.md
+++ b/README.md
@@ -165,3 +165,20 @@ Default cache purge time can be specified in number of days.
 
 
 **for android, you need to initialize in the application onlaunch event before clearing the cache**
+
+### Prefetching images
+
+It is possible to prefetch images so that they are already loaded in the cache before use.
+
+```
+let urls = [
+  url1,
+  url2
+]
+
+preFetchImage(urls)
+.then(() => { console.log('prefetch success!'); })
+.catch((error) => { console.error('prefetch error: '+error); });
+```
+
+** note: on iOS calling preFetchImage multiple times before the promise resolves will cancel previous calls
diff --git a/index.d.ts b/index.d.ts
index 5d649a9..767665e 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -47,3 +47,9 @@ export function initializeOnAngular(): void;
  * @param days : limit of the cache
  */
 export function setCacheLimit(days: number): void;
+
+/**
+ * To prefetch images to allow loading before using the images
+ * @param days : array of URLs to prefetch
+ */
+export function preFetchImage(urls:Array<string>) : Promise<void>;
diff --git a/ios-ts-lib/helpers.js b/ios-ts-lib/helpers.js
index c689c20..0e6658f 100644
--- a/ios-ts-lib/helpers.js
+++ b/ios-ts-lib/helpers.js
@@ -56,7 +56,7 @@ var Helpers = (function () {
     Helpers.getPlaceholderUIImage = function (value) {
         if (types.isString(value)) {
             if (utils.isFileOrResourcePath(value)) {
-                return imageSource.fromFileOrResource(value).ios;
+                return imageSource.ImageSource.fromFileOrResourceSync(value).ios;
             }
         }
         return undefined;
diff --git a/ios-ts-lib/helpers.ts b/ios-ts-lib/helpers.ts
index 4c5b388..63eb6b6 100644
--- a/ios-ts-lib/helpers.ts
+++ b/ios-ts-lib/helpers.ts
@@ -77,7 +77,7 @@ export class Helpers {
   public static getPlaceholderUIImage(value) {
     if (types.isString(value)) {
       if (utils.isFileOrResourcePath(value)) {
-        return imageSource.fromFileOrResource(value).ios;
+        return imageSource.ImageSource.fromFileOrResourceSync(value).ios;
       }
     }
 
diff --git a/package.json b/package.json
index d58a162..c4d54cd 100644
--- a/package.json
+++ b/package.json
@@ -1,28 +1,4 @@
 {
-  "_from": "nativescript-web-image-cache",
-  "_id": "nativescript-web-image-cache@4.2.6",
-  "_inBundle": false,
-  "_integrity": "sha512-zIFzI09vBuQcODCdxuDgtBWmtTxNSxm06win+IU7t2zblk2ItdGawDbwd0ZLX9RN+moUf/ytTj+MMoBgowdt6Q==",
-  "_location": "/nativescript-web-image-cache",
-  "_phantomChildren": {},
-  "_requested": {
-    "type": "tag",
-    "registry": true,
-    "raw": "nativescript-web-image-cache",
-    "name": "nativescript-web-image-cache",
-    "escapedName": "nativescript-web-image-cache",
-    "rawSpec": "",
-    "saveSpec": null,
-    "fetchSpec": "latest"
-  },
-  "_requiredBy": [
-    "#USER",
-    "/"
-  ],
-  "_resolved": "https://registry.npmjs.org/nativescript-web-image-cache/-/nativescript-web-image-cache-4.2.4.tgz",
-  "_shasum": "acc14c6684fc2dd7481a66f1f01a98b00e1ce62d",
-  "_spec": "nativescript-web-image-cache",
-  "_where": "/Users/Sumeet/smg/gudds/NKY/ns/sample",
   "author": {
     "name": "Batheja Sumeet"
   },
@@ -61,7 +37,9 @@
     "type": "git",
     "url": "git+https://github.com/VideoSpike/nativescript-web-image-cache.git"
   },
-  "scripts": {},
+  "scripts": {
+    "build": "./node_modules/.bin/tsc"
+  },
   "typings": "web-image-cache.d.ts",
   "version": "5.0.0"
 }
diff --git a/platforms/android/include.gradle b/platforms/android/include.gradle
index 4624042..e074720 100644
--- a/platforms/android/include.gradle
+++ b/platforms/android/include.gradle
@@ -1,13 +1,9 @@
 /* Include.gradle configuration: http://docs.nativescript.org/plugins/plugins#includegradle-specification */
 
 android {
-	productFlavors {
-		"nativescript-web-image-cache" {
-			dimension "nativescript-web-image-cache"
-		}
-	}
+	
 }
 
 dependencies {
-	compile "com.facebook.fresco:fresco:1.10.0"
+	compile "com.facebook.fresco:fresco:2.3.0"
 }
diff --git a/platforms/ios/Podfile b/platforms/ios/Podfile
index 117314f..35cdfe6 100644
--- a/platforms/ios/Podfile
+++ b/platforms/ios/Podfile
@@ -1 +1 @@
-pod 'SDWebImage', '~> 4.4.1'
+pod 'SDWebImage', '~> 5.9.4'
diff --git a/types/fresco.d.ts b/types/fresco.d.ts
index 5f2528c..97800ab 100644
--- a/types/fresco.d.ts
+++ b/types/fresco.d.ts
@@ -1,12 +1,20 @@
 declare namespace com {
   export namespace facebook {
     export namespace datasource {
+      export class BaseDataSubscriber {
+        public static extend(param: any);
+      }
       export class DataSource { }
     }
     export namespace common {
       export namespace references {
         export class CloseableReference { }
       }
+      export namespace executors {
+        export class UiThreadImmediateExecutorService {
+          public static getInstance() : any;
+        }
+      }
       export namespace internal {
         export class Supplier { }
       }
@@ -18,7 +26,9 @@ declare namespace com {
         export class ImagePipeline { }
       }
       export namespace request {
-        export class ImageRequest { }
+        export class ImageRequest {
+          public static fromUri(param0: any): any;
+        }
       }
       export namespace image {
         export class ImageInfo { }
diff --git a/web-image-cache.android.d.ts b/web-image-cache.android.d.ts
index 11d6957..9b468cb 100644
--- a/web-image-cache.android.d.ts
+++ b/web-image-cache.android.d.ts
@@ -13,3 +13,4 @@ export declare function setCacheLimit(numberOfDays: any): void;
 export declare function initialize(): void;
 export declare function clearCache(): void;
 export declare function initializeOnAngular(): void;
+export declare function preFetchImage(urls: Array<string>): Promise<void>;
diff --git a/web-image-cache.android.js b/web-image-cache.android.js
index 4b9587c..692e2d0 100644
--- a/web-image-cache.android.js
+++ b/web-image-cache.android.js
@@ -146,4 +146,34 @@ function initializeOnAngular() {
     throw new Error("'initializeOnAngular' has been removed from 'nativescript-web-image-cache', see its readme for details!");
 }
 exports.initializeOnAngular = initializeOnAngular;
-//# sourceMappingURL=web-image-cache.android.js.map
\ No newline at end of file
+function preFetchImage(urls) {
+    return new Promise(function (resolve, reject) {
+        if (!urls || !Array.isArray(urls) || urls.length < 1) {
+            reject("preFetchImage: param should be array of urls");
+        }
+        else {
+            var counter_1 = 0;
+            urls.forEach(function (url) {
+                var uri = android.net.Uri.parse(url);
+                var prefetchSubscriber = com.facebook.datasource.BaseDataSubscriber.extend({
+                    onNewResultImpl: function (dataSource) {
+                        counter_1++;
+                        if (counter_1 === urls.length) {
+                            resolve();
+                        }
+                    },
+                    onFailureImpl: function (dataSource) {
+                        counter_1++;
+                        if (counter_1 === urls.length) {
+                            reject("preFetchImage: failed to prefetch " + uri.toString());
+                        }
+                    }
+                });
+                var dataSource = com.facebook.drawee.backends.pipeline.Fresco.getImagePipeline().prefetchToBitmapCache(com.facebook.imagepipeline.request.ImageRequest.fromUri(uri), application.android.context);
+                dataSource.subscribe(new prefetchSubscriber(), com.facebook.common.executors.UiThreadImmediateExecutorService.getInstance());
+            });
+        }
+    });
+}
+exports.preFetchImage = preFetchImage;
+//# sourceMappingURL=web-image-cache.android.js.map
diff --git a/web-image-cache.android.js.map b/web-image-cache.android.js.map
index 4c2f057..8d442b3 100644
--- a/web-image-cache.android.js.map
+++ b/web-image-cache.android.js.map
@@ -1 +1 @@
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\ No newline at end of file
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\ No newline at end of file
diff --git a/web-image-cache.android.ts b/web-image-cache.android.ts
index d57580b..dac4c03 100644
--- a/web-image-cache.android.ts
+++ b/web-image-cache.android.ts
@@ -175,3 +175,43 @@ export function clearCache() {
 export function initializeOnAngular() {
   throw new Error("'initializeOnAngular' has been removed from 'nativescript-web-image-cache', see its readme for details!");
 }
+
+export function preFetchImage(urls: Array<string>) : Promise<void> {
+  return new Promise<void>((resolve, reject) => {
+    if (!urls || !Array.isArray(urls) || urls.length<1) {
+      reject(`preFetchImage: param should be array of urls`);
+    } else {
+      let counter:number=0;
+
+      urls.forEach((url) => {
+        const uri = android.net.Uri.parse(url);
+        const prefetchSubscriber = com.facebook.datasource.BaseDataSubscriber.extend({
+          onNewResultImpl(dataSource) {
+            counter++;
+            if (counter===urls.length) { resolve(); }
+          },
+          onFailureImpl(dataSource) {
+            counter++;
+            if (counter===urls.length) {
+              reject(`preFetchImage: failed to prefetch ${uri.toString()}`);
+            }
+          }
+        });
+
+        /*
+          prefetchToDiskCache() --> load to disk slower but less CPU
+          prefetchToBitmapCache --> load to memory cache, faster but more CPU
+        */
+        let dataSource = com.facebook.drawee.backends.pipeline.Fresco.getImagePipeline().prefetchToBitmapCache(
+          com.facebook.imagepipeline.request.ImageRequest.fromUri(uri),
+          application.android.context
+        );
+
+        dataSource.subscribe(
+          new prefetchSubscriber(),
+          com.facebook.common.executors.UiThreadImmediateExecutorService.getInstance()
+        );
+      });
+    }
+  });
+}
diff --git a/web-image-cache.ios.d.ts b/web-image-cache.ios.d.ts
index a25b578..385cc4f 100644
--- a/web-image-cache.ios.d.ts
+++ b/web-image-cache.ios.d.ts
@@ -13,3 +13,4 @@ export declare class WebImage extends WebImageCommon {
 export declare function setCacheLimit(numberOfDays: any): void;
 export declare function clearCache(): void;
 export declare function initializeOnAngular(): void;
+export declare function preFetchImage(urls: Array<string>): Promise<void>;
diff --git a/web-image-cache.ios.js b/web-image-cache.ios.js
index 8dcf334..13ffe25 100644
--- a/web-image-cache.ios.js
+++ b/web-image-cache.ios.js
@@ -139,4 +139,17 @@ function initializeOnAngular() {
     throw new Error("'initializeOnAngular' has been removed from 'nativescript-web-image-cache', see its readme for details!");
 }
 exports.initializeOnAngular = initializeOnAngular;
+function preFetchImage(urls) {
+    return new Promise(function (resolve, reject) {
+        if (!urls || !Array.isArray(urls) || urls.length < 1) {
+            reject("preFetchImage: param should be array of urls");
+        }
+        else {
+            SDWebImagePrefetcher.sharedImagePrefetcher.prefetchURLsProgressCompleted(urls, null, function (finishedCount, skippedCount) {
+                resolve();
+            });
+        }
+    });
+}
+exports.preFetchImage = preFetchImage;
 //# sourceMappingURL=web-image-cache.ios.js.map
\ No newline at end of file
diff --git a/web-image-cache.ios.js.map b/web-image-cache.ios.js.map
index 062c8c4..2136c34 100644
--- a/web-image-cache.ios.js.map
+++ b/web-image-cache.ios.js.map
@@ -1 +1 @@
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\ No newline at end of file
diff --git a/web-image-cache.ios.ts b/web-image-cache.ios.ts
index ed29219..79a204f 100644
--- a/web-image-cache.ios.ts
+++ b/web-image-cache.ios.ts
@@ -23,6 +23,10 @@ declare class UIViewContentMode {
   static UIViewContentModeScaleAspectFill: any;
 }
 
+declare class SDWebImagePrefetcher {
+  static sharedImagePrefetcher: any;
+}
+
 
 let placeholderProperty = new Property<WebImageCommon, string>({
   name: "placeholder",
@@ -203,3 +207,15 @@ export function clearCache() {
 export function initializeOnAngular() {
   throw new Error("'initializeOnAngular' has been removed from 'nativescript-web-image-cache', see its readme for details!");
 }
+
+export function preFetchImage(urls: Array<string>) : Promise<void> {
+  return new Promise<void>((resolve, reject) => {
+    if (!urls || !Array.isArray(urls) || urls.length<1) {
+      reject(`preFetchImage: param should be array of urls`);
+    } else {
+      SDWebImagePrefetcher.sharedImagePrefetcher.prefetchURLsProgressCompleted(urls, null, (finishedCount, skippedCount) => {
+        resolve();
+      });
+    }
+  });
+}