iPhone Screenshots


How good the App is! “Audio Speed Changer” helps you to learn foreign language and listen to the audio files.

Import files
• Audio file can also be from QQ, WeChat, Dropbox, Google Drive and other programs open directly to the "Audio Speed Changer".
• Wi-Fi file transfer, import files in batches.
How to use wifi transfer to import files:
1) Make sure that the iPhone or iPad/iPod Touch devices and the computer are connected to the same local network or the same Wi-Fi network.
2) Click WiFi button and import the Device URL in Web Browser on your Desktop.
3) Upload files.

High efficiency and easy to use
• Adjust the audio files’s play rate accurately. The speed of the audio file is continuously adjustable from x0.2 to x5.0. Even if the speed is accelerated, the sound is still clear.
• Easily set repeat play interval. Set a start playing time, and then set a stop playing time, in this period of time the content can cycle to play.
• Stops play at the specified time. you can set up before you go to bed. Then have a sweet sleep.
• Easy to set order play, single loop, random play
• Cut and save part of the sound
• Share a sound to WeChat or QQ
• Play history: start audio directly from the last play and continue from where it stopped
• Support background play, does not affect other apps

Powerful tools
• Support audio file: .mp3\.m4a
• Extract .zip .rar file contents
• Use directory store files
• Delete the file easily, support batch delete.
• Continued playing the audio file, start play from the end of the last audio file automatically.
• Super easy to use: clean and intuitive interface.

If you have any inquiries or questions, regarding this application, please contact us: hanmingjie@gmail.com
I do my best to develop applications that better suits your needs ! Thanks a lot.

What’s New

Version 4.3

Fixed Remove file in sub folder bug.

Ratings and Reviews

4.2 out of 5
14 Ratings

14 Ratings

Asterose ,

<<= back button is not working properly.

Fix asap please this is important matter. Everything else is 5stars!

Developer Response ,

Drag right will back to upper folder.

07kmf ,

Customer service is great.

I emailed them to add more speed choices and automatic single file replay. He responded me soon, and send me a TestFlight with more speed choices and automatic single file replay. Those feature will be added to next update. Thank you, Hans.

Cam1010101012345 ,

Perfect for mp3 audiobooks

This app works exactly as described. I couldn't believe it! I love the wifi file transfer feature.


Han Mingjie
17 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Simplified Chinese

Age Rating
Rated 4+
© HanMingJie
In-App Purchases
  1. Got A Part $0.99
  2. Make Contribution $2.99
  3. Make Larger Contribution $12.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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