diff --git a/lib/ios.dart b/lib/ios.dart
index 5fad0e7da2..d911fa8e8a 100644
--- a/lib/ios.dart
+++ b/lib/ios.dart
@@ -23,24 +23,19 @@ class IosIconTemplate {
 
 /// details of the ios icons which need to be generated
 List<IosIconTemplate> iosIcons = <IosIconTemplate>[
-  IosIconTemplate(name: '-20x20@1x', size: 20),
   IosIconTemplate(name: '-20x20@2x', size: 40),
   IosIconTemplate(name: '-20x20@3x', size: 60),
-  IosIconTemplate(name: '-29x29@1x', size: 29),
   IosIconTemplate(name: '-29x29@2x', size: 58),
   IosIconTemplate(name: '-29x29@3x', size: 87),
-  IosIconTemplate(name: '-40x40@1x', size: 40),
+  IosIconTemplate(name: '-38x38@2x', size: 76),
+  IosIconTemplate(name: '-38x38@3x', size: 114),
   IosIconTemplate(name: '-40x40@2x', size: 80),
   IosIconTemplate(name: '-40x40@3x', size: 120),
-  IosIconTemplate(name: '-50x50@1x', size: 50),
-  IosIconTemplate(name: '-50x50@2x', size: 100),
-  IosIconTemplate(name: '-57x57@1x', size: 57),
-  IosIconTemplate(name: '-57x57@2x', size: 114),
   IosIconTemplate(name: '-60x60@2x', size: 120),
   IosIconTemplate(name: '-60x60@3x', size: 180),
-  IosIconTemplate(name: '-72x72@1x', size: 72),
-  IosIconTemplate(name: '-72x72@2x', size: 144),
-  IosIconTemplate(name: '-76x76@1x', size: 76),
+  IosIconTemplate(name: '-64x64@2x', size: 128),
+  IosIconTemplate(name: '-64x64@3x', size: 192),
+  IosIconTemplate(name: '-68x68@2x', size: 136),
   IosIconTemplate(name: '-76x76@2x', size: 152),
   IosIconTemplate(name: '-83.5x83.5@2x', size: 167),
   IosIconTemplate(name: '-1024x1024@1x', size: 1024),
@@ -206,12 +201,14 @@ class ContentsImageObject {
   ContentsImageObject({
     required this.size,
     required this.idiom,
+    required this.platform,
     required this.filename,
     required this.scale,
   });
 
   final String size;
   final String idiom;
+  final String platform;
   final String filename;
   final String scale;
 
@@ -219,6 +216,7 @@ class ContentsImageObject {
     return <String, String>{
       'size': size,
       'idiom': idiom,
+      'platform': platform,
       'filename': filename,
       'scale': scale,
     };
@@ -243,151 +241,140 @@ List<Map<String, String>> createImageList(String fileNamePrefix) {
   final List<Map<String, String>> imageList = <Map<String, String>>[
     ContentsImageObject(
       size: '20x20',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-20x20@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
       size: '20x20',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-20x20@3x.png',
       scale: '3x',
     ).toJson(),
     ContentsImageObject(
       size: '29x29',
-      idiom: 'iphone',
-      filename: '$fileNamePrefix-29x29@1x.png',
-      scale: '1x',
-    ).toJson(),
-    ContentsImageObject(
-      size: '29x29',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-29x29@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
       size: '29x29',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-29x29@3x.png',
       scale: '3x',
     ).toJson(),
     ContentsImageObject(
+      size: '38x38',
+      idiom: 'universal',
+      platform: 'ios',
+      filename: '$fileNamePrefix-38x38@2x.png',
+      scale: '2x',
+    ).toJson(),
+    ContentsImageObject(
+      size: '38x38',
+      idiom: 'universal',
+      platform: 'ios',
+      filename: '$fileNamePrefix-38x38@3x.png',
+      scale: '3x',
+    ).toJson(),    ContentsImageObject(
       size: '40x40',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-40x40@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
       size: '40x40',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-40x40@3x.png',
       scale: '3x',
     ).toJson(),
-    ContentsImageObject(
-      size: '50x50',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-50x50@1x.png',
-      scale: '1x',
-    ).toJson(),
-    ContentsImageObject(
-      size: '50x50',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-50x50@2x.png',
-      scale: '2x',
-    ).toJson(),
-    ContentsImageObject(
-      size: '57x57',
-      idiom: 'iphone',
-      filename: '$fileNamePrefix-57x57@1x.png',
-      scale: '1x',
-    ).toJson(),
-    ContentsImageObject(
-      size: '57x57',
-      idiom: 'iphone',
-      filename: '$fileNamePrefix-57x57@2x.png',
-      scale: '2x',
-    ).toJson(),
     ContentsImageObject(
       size: '60x60',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-60x60@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
       size: '60x60',
-      idiom: 'iphone',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-60x60@3x.png',
       scale: '3x',
     ).toJson(),
     ContentsImageObject(
       size: '20x20',
-      idiom: 'ipad',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-20x20@1x.png',
       scale: '1x',
     ).toJson(),
     ContentsImageObject(
-      size: '20x20',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-20x20@2x.png',
-      scale: '2x',
-    ).toJson(),
-    ContentsImageObject(
-      size: '29x29',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-29x29@1x.png',
-      scale: '1x',
-    ).toJson(),
-    ContentsImageObject(
-      size: '29x29',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-29x29@2x.png',
+      size: '60x60',
+      idiom: 'universal',
+      platform: 'ios',
+      filename: '$fileNamePrefix-60x60@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
-      size: '40x40',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-40x40@1x.png',
-      scale: '1x',
+      size: '60x60',
+      idiom: 'universal',
+      platform: 'ios',
+      filename: '$fileNamePrefix-60x60@3x.png',
+      scale: '3x',
     ).toJson(),
     ContentsImageObject(
-      size: '40x40',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-40x40@2x.png',
+      size: '64x64',
+      idiom: 'universal',
+      platform: 'ios',
+      filename: '$fileNamePrefix-64x64@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
-      size: '72x72',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-72x72@1x.png',
-      scale: '1x',
+      size: '64x64',
+      idiom: 'universal',
+      platform: 'ios',
+      filename: '$fileNamePrefix-64x64@3x.png',
+      scale: '3x',
     ).toJson(),
     ContentsImageObject(
-      size: '72x72',
-      idiom: 'ipad',
-      filename: '$fileNamePrefix-72x72@2x.png',
+      size: '68x68',
+      idiom: 'universal',
+      platform: 'ios',
+      filename: '$fileNamePrefix-68x68@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
       size: '76x76',
-      idiom: 'ipad',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-76x76@1x.png',
       scale: '1x',
     ).toJson(),
     ContentsImageObject(
       size: '76x76',
-      idiom: 'ipad',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-76x76@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
       size: '83.5x83.5',
-      idiom: 'ipad',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-83.5x83.5@2x.png',
       scale: '2x',
     ).toJson(),
     ContentsImageObject(
       size: '1024x1024',
-      idiom: 'ios-marketing',
+      idiom: 'universal',
+      platform: 'ios',
       filename: '$fileNamePrefix-1024x1024@1x.png',
       scale: '1x',
     ).toJson(),