# mimiCopy - Slow Down Player

> Music player for learning songs by ear with speed and pitch control. (iPhone/iPad app by ART Teknika Inc..)

- Source: https://appshunter.io/ios/app/mimicopy-slow-down-player/id405894824 (this page in markdown: same URL + `.md`)
- Developer: [ART Teknika Inc.](https://appshunter.io/developer/405894827)
- Category: Music, Business
- Price: $4.99 with in-app purchases
- Rating: 4.20/5 from 10 App Store ratings · 76 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 6 MB
- Languages: American English, Japanese
- Released: 2010-12-16
- Data updated: 2026-08-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/mimicopy-slow-down-player/id405894824/reviews.md

## What is mimiCopy?

**If you can not access the music library on iOS10, check that mimiCopy is ON in "Settings" in "Privacy" -> "Media Library".

mimiCopy is a music player that helps guitarists and other musicians 'learn by ear' a track of their choice. You can playback at slower speed without any change in pitch, or use the waveform view to skip to a particular segment or set a loop. You can also load your favorite track from your iPod library!

Main features
- Time stretch function for playing back at different speeds without any change in pitch.
  Ideal for slow playback of fast phrases.
  (Features the high-quality time stretch engine(*1))
  (speed controlrange:25%-200%)
- pitch shift function. Adjustment range: ±1 octave
- Waveform view for easily skipping to a desired segment or setting a (A-B)loop.
- Simple (A-B)loop setup by tapping the start and end positions during playback. Loop intervals can be set to three locations.
- Quick rewind function for going back to replay just the few seconds that you've missed.
- Supports importing of tracks from your iPod library.(*2)
- File import via WiFi or USB.
- Option to disable Auto-Lock while the main view is open.
- Universal app (supports iPhone, iPod touch, and iPad).
- Memo function.
- Flexible audio routing. mimiCopy has its own volume control. It can also adjust the right and left volume. or can change the right and left channel.

- Intuitive and hassle-free interface.
  Let mimiCopy be your handy sidekick in your music life.
* Some functions are features of the Pro version. Pro version users must register (registration is free).

Suggested Usage
- Transcribe speeches, interviews, conferences, etc.
- Enjoy seminars and podcasts at faster (or slower) speed.
  (High-quality time stretch engine makes listening easier than with iPod's generic 1/2x and 2x playback)

---
If mimiCopy shows "unknown error", try following:
http://support.apple.com/kb/HT4211?viewlocale=en_US
---
When the dialog of opening cannot be closed, please force the app to close or reboot your device. . 
Force the app to close:
1. From the Home screen, double-click the Home button to display recently used apps.
2. Tap and hold the app until a red minus appears. Tap the red minus to quit the app.
3. Tap on the Home screen, above, to return.
----

Became a fan of mimiCopy on Facebook!
http://www.facebook.com/mimiCopyApp


(*1)Featuring the time stretch engine by P SOFTHOUSE Co.,Ltd.
(*2)DRM protected files(Song bought from iTunes) are not supported. iTunes Plus files are supported. Other files may not be supported depending on the encoding format.

## Key features

- Slow down playback without pitch change
- Set A-B loops
- Waveform view
- Quick rewind function
- Import from iPod library
- File import via WiFi/USB

## Pricing and in-app purchases

Base price: $4.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade to Pro version | $4.99 | one-time |


## Recent user reviews (10 of 76)

All indexed reviews: https://appshunter.io/ios/app/mimicopy-slow-down-player/id405894824/reviews.md

### 1/5 — 転調バーが動かない

*2026-02-26*

ずっと気に入って使ってましたが、今年になり
転調の♪マークのバーがグレーになって動かなくなり、テンポ変えると早くは高くなり、遅くなるとピッチが低くなります。

### 4/5 — 便利！

*2026-02-10*

上手くないカラオケの訓練用にインストール。重宝します。一点バグ有りなのでご報告します。比較的頻繁に、曲が止まり針が狂ったように速くグルグル動くことがあります。バックグラウンド再生の時で、当方iPhoneSE3 iOS 26.2.1です。

### 1/5 — iphone17で誤作動？

*2025-10-05*

長年使ってて、和楽器の稽古ですごく活躍してたのですが、iPhone17に変えてからピッチを変更して再生すると暫くして無音で高速に曲の最後にいってしまいます。一度アプリを削除して入れ直したりしてもダメで、、対応して欲しいです。他も色々試したけど、やっぱり一番使いやすいので

### 1/5 — 復元できない

*2025-07-19*

購入してるのですが、復元ができません。どうすればいいですか？

### 1/5 — 金払ったはずなのに。

*2025-07-07*

以前、購入したはずなのにいつの間にか無料版に戻されてるのはなぜですか？

### 5/5 — 素晴らしいアプリです！

*2025-06-06*

いつも楽しく、便利に使わせていただいてます〜
とても良く出来たアプリだと思います〜
初見の楽譜で困った時など、とてもとても助かってますよ〜

### 2/5 — 逆さま

*2025-05-15*

アプリの表示が他のアプリと逆さまで使いづらい！
どなたか直し方わかりますか？

### 3/5 — データが全部消えた

*2025-03-28*

便利だったのに残念です😢

### 5/5 — キーボード対応が欲しい

*2024-11-11*

iPadで使っているのでキーボードで再生と一時停止を切り替えられたら完璧
二重に課金させられていることは目をつぶれそう

### 4/5 — Apple Watchと相性悪し

*2024-10-19*

有料版だけあって機能は問題なし

UIはと言うと波形を両端まで表示しているからリピートのためのシークバーが動かしづらい

一番の欠点はワイヤレスイヤホン再生時によく途切れること、Apple Watchとバッティングするのか、Apple Watchで改札を通る、時間を表示させるなどアクションするたびに音が途切れてスピーカー再生になる

いいアプリなだけに勿体ない

## Frequently asked questions about mimiCopy

### What does mimiCopy do?

mimiCopy is a music player designed to help musicians learn songs by ear. It allows you to play back music at slower speeds without changing the pitch, set specific loops within a track, and quickly rewind to re-listen to sections. It also supports importing tracks from your iPod library and via WiFi or USB.

### What are the main features of mimiCopy?

Key features include time stretching for variable playback speed without pitch alteration, pitch shifting up to an octave, a waveform view for easy segment skipping and A-B looping, a quick rewind function, and the ability to import tracks from your iPod library and via WiFi or USB. It also offers a memo function and flexible audio routing.

### Is mimiCopy free to use?

The app is free to download and use, with some advanced functions available in a Pro version. Users of the Pro version need to register, which is free. This indicates a freemium model where core functionality is free, with optional paid upgrades.

### What devices is mimiCopy compatible with?

mimiCopy is a universal app, meaning it supports iPhone, iPod touch, and iPad devices. Ensure your device is running a compatible iOS version, as noted in the description regarding iOS10 media library access.

### Can I use mimiCopy for non-music audio like podcasts?

Yes, the app's time stretch function is also suggested for transcribing speeches, interviews, and conferences, as well as enjoying seminars and podcasts at faster or slower speeds. The high-quality time stretch engine aims to make listening easier than standard playback speed controls.

## Version history (last 5 releases)

### 1.7.2 — 2020-11-17

Fixed an issue where playing to the end of a file and then stopping and moving the cursor to the desired location would cause the file to be played from the beginning.

### 1.7.1 — 2020-06-22

Fixed a problem where folder playback did not work properly.

### 1.7.0 — 2020-04-10

- Equalizer function added (pro version function)
  Available as an in-app purchase upgrade, existing Pro
  version users can use it as is.
- Fixed the iPod Player function (playing without reading the waveform).
- iPhone screen optimization
- Other minor bug fixes and adjustments.

### 1.6.2 — 2020-04-06

Fixed the issue where the export function would not work on iPad.

### 1.6.1 — 2020-02-19

Corrects an issue that prevented iPad from importing music from the library.

[Important]
The user registration system has been discontinued(*).
The Pro feature is only available for in-app purchases.
All the pro features from previous versions are now available in the standard version.
Starting with version 1.6, we added a file export function as a pro feature. EQ will be added soon. If you've upgraded to the pro version with in-app purchases in previous versions, you'll be able to take advantage of these features.
*All registered information will be discarded.

[Fixes]
・Added file import capability. It adds the standard iOS "Files" app, which lets you import files from iCloud and other cloud services, as well as from your device.
・You can now export as a separate file to reflect the file exporter (Pro only: Upgradeable via in-app purchase), pit[Important]
The user registration system has been discontinued(*).
The Pro feature is only available for in-app purchases.
All the pro features from previous versions are now available in the standard version.
Starting with version 1.6, we added a file export function as a pro feature. EQ will be added soon. If you've upgraded to the pro version with in-app purchases in previous versions, you'll be able to take advantage of these features.
*All registered information will be discarded.

[Added]
・[iOS12 and latoer]Added file import capability. It adds the standard iOS "Files" app, which lets you import files from iCloud and other cloud services, as well as from your device.
・You can now export as a separate file to reflect the file exporter (Pro only: Upgradeable via in-app purchase), pitch, and speed. (From the Edit menu on the File screen)
・Audio engine modification. We updated the playback engine to match the OS upgrade.ch, and speed. (From the Edit menu on the File screen)

## Apps similar to mimiCopy

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Music Speed Changer-Transpose](https://appshunter.io/ios/app/music-speed-changer-transpose/id6447086413) | 4.5 (156) | Free | Music |
| [Slow Down Music \| Transcribe+](https://appshunter.io/ios/app/slow-down-music-transcribe-plus/id1048119179) | 4.5 (5,251) | Free | Music |
| [Music Speed Changer ▶▶▶](https://appshunter.io/ios/app/music-speed-changer/id1595494271) | 4.8 (3,943) | Free | Music |
| [Amazing Slow Downer Lite](https://appshunter.io/ios/app/amazing-slow-downer-lite/id310204778) | 2.7 (111) | Free | Music |
| [AudioStretch](https://appshunter.io/ios/app/audiostretch/id571863178) | 4.4 (223) | $9.99 | Music |
| [Amazing Slow Downer](https://appshunter.io/ios/app/amazing-slow-downer/id308998718) | 3.9 (447) | $14.99 | Music |

## More apps by ART Teknika Inc.

- [Midi Tool Box](https://appshunter.io/ios/app/midi-tool-box/id443115330)
- [COLORCODE VJ](https://appshunter.io/ios/app/colorcode-vj/id454695815)
- [iConvolver - Impulse Response Reverb](https://appshunter.io/ios/app/iconvolver-impulse-response-reverb/id1042911823)
- [M/S Proc - Mid/Side Level & EQ](https://appshunter.io/ios/app/ms-proc-midside-level-and-eq/id1062761979)
- [英しゃべ - 日本人全員英語しゃべれる化計画](https://appshunter.io/ios/app/id1091169187)

All apps by ART Teknika Inc.: https://appshunter.io/developer/405894827

## Related topics

[slow down music player](https://appshunter.io/ios/topics/slow-down-music-player) · [mimicopi](https://appshunter.io/ios/topics/mimicopi)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*