diff --git a/record/README.md b/record/README.md
index fed1c048..1c776b9d 100644
--- a/record/README.md
+++ b/record/README.md
@@ -25,13 +25,13 @@ External dependencies:
 ## File
 | Encoder         | Android        | iOS     | web     | Windows | macOS   | linux
 |-----------------|----------------|---------|---------|---------|---------|---------
-| aacLc           | ✔️            |   ✔️    |  ?      |   ✔️    |  ✔️    |  ✔️ 
-| aacEld          | ✔️            |   ✔️    |   ?     |         |  ✔️    | 
-| aacHe           | ✔️            |         |   ?     |         |         |  ✔️ 
+| aacLc           | ✔️            |   ✔️    |  ?      |   ✔️    |  ✔️    |  ✔️
+| aacEld          | ✔️            |   ✔️    |   ?     |         |  ✔️    |
+| aacHe           | ✔️            |         |   ?     |         |         |  ✔️
 | amrNb           | ✔️            |         |  ?      |   ✔️    |         |  
 | amrWb           | ✔️            |         |  ?      |          |        |  
-| opus            | ✔️            |         |  ?    |         |         |  ✔️ 
-| wav             | ✔️ 2          |   ✔️    |   ✔️   |    ✔️    |   ✔️  |   ✔️ 
+| opus            | ✔️            |   ✔️    |  ?     |         |         |  ✔️ 
+| wav             | ✔️ 2          |   ✔️    |   ✔️   |    ✔️    |   ✔️  |   ✔️
 | flac            | ✔️ 2          |    ✔️    |  ?     |  ✔️     |   ✔️   |   ✔️
 | pcm16bits       | ✔️ 2          |   ✔️    |  ✔️    |   ✔️    |  ✔️    |  
 
@@ -39,7 +39,7 @@ External dependencies:
 | Encoder         | Firefox    | Chrome based   | Safari
 |-----------------|------------|----------------|---------
 | aacLc           |            |                |  ✔️*
-| opus            | ✔️*        |   ✔️*           | 
+| opus            | ✔️*        |   ✔️*           |
 | wav             | ✔️        |   ✔️           |   ✔️
 | pcm16bits       | ✔️        |   ✔️           |  ✔️
 
@@ -51,7 +51,7 @@ wav and pcm16bits are provided by the package directly.
 | Encoder         | Android    | iOS     | web     | Windows | macOS   | linux
 |-----------------|------------|---------|---------|---------|---------|---------
 | aacLc       *   | ✔️ 2      |         |          |         |         |  
-| aacEld      *   | ✔️ 2      |         |          |         |         | 
+| aacEld      *   | ✔️ 2      |         |          |         |         |
 | aacHe       *   | ✔️ 2      |         |          |         |         |  
 | pcm16bits       | ✔️ 2      |  ✔️    |   ✔️    |  ✔️     | ✔️     |  
 
diff --git a/record_darwin/darwin/Classes/Recorder.swift b/record_darwin/darwin/Classes/Recorder.swift
index bcc68dc3..b919d261 100644
--- a/record_darwin/darwin/Classes/Recorder.swift
+++ b/record_darwin/darwin/Classes/Recorder.swift
@@ -139,6 +139,7 @@ class Recorder {
     case AudioEncoder.aacLc.rawValue,
       AudioEncoder.aacEld.rawValue, /*"aacHe", "amrNb", "amrWb", "opus",*/
       AudioEncoder.flac.rawValue,
+      AudioEncoder.opus.rawValue,
       AudioEncoder.pcm16bits.rawValue,
       AudioEncoder.wav.rawValue:
       return true
diff --git a/record_platform_interface/lib/src/types/audio_encoder.dart b/record_platform_interface/lib/src/types/audio_encoder.dart
index c08c19f3..9e4cbc15 100644
--- a/record_platform_interface/lib/src/types/audio_encoder.dart
+++ b/record_platform_interface/lib/src/types/audio_encoder.dart
@@ -36,6 +36,8 @@ enum AudioEncoder {
   ///
   /// SDK 29 on Android
   ///
+  /// SDK 11 on iOS (CAF format container)
+  ///
   /// Suggested file extension: `opus`
   opus,