mimiCopy vs Chordana Composer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mimiCopy
This music player allows musicians to slow down tracks without altering pitch, set loops, and rewind quickly to learn songs by ear. It also supports importing music from your library and offers file import via WiFi or USB.
- Slow down playback without pitch change
- Set A-B loops
- Waveform view
- Quick rewind function
- Import from iPod library
- File import via WiFi/USB
Read full descriptionHide full description
**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.
Chordana Composer
Easily create original music without prior composition knowledge. Input a short melody and let the app automatically generate a full song based on your chosen genre and concept. Edit your creations and share them as videos or audio files.
- Automatic tune generation from motif
- Three motif input modes (keyboard, notation, microphone)
- Genre and concept selection for composition
- Melody editing with hints
- YouTube video export with notation
- Email export in AAC/MIDI format
- Ringtone creation
Read full descriptionHide full description
[Compatible devices] iPhone6 or later(Except for the iPhone SE). [System requirements] iOS 11.0 or later required. An easy way to create your own original tunes! Chordana Composer makes it easy for you to write your own tunes, even if you don't know how to compose music. You can enter a motif (two-bar melody) using your choice of 3 input modes. There's no need to enter the melody for the entire tune. You just enter one motif and Chordana Composer automatically creates a whole tune, so you don't have to spend ages composing the music. Product Features 1. Three ways to enter your motif (2-bar melody) A melody that comes to you in the middle of an ordinary day... Have you ever thought: “This would make a really great tune. But I need to know how to compose, and it's no good if I can't read music. And that all takes time to learn”? Chordana Composer will take care of all those concerns. Just enter 2 bars of the motif you thought of. Chordana Composer will automatically make it into an entire tune. You can choose from 3 types of input method. In "Keyboard input mode" you use a virtual keyboard, in "Notation input mode, you paste the notes into a sheet of music, and in "Microphone input mode", you just sing the motif into the microphone. 2. Automatic composition by choosing "Genre" and "Concept" Once you've entered the melody using one of the modes above, you're ready for automatic composition. Choose whichever combination of "Genre", "Concept", "Range of melody movement" and "Level of melody tension" creates a tune that best matches what you've imagined. 3. Your own editing using the Hints function In Notation input mode, you can edit the the created melody yourself. If you enable the Hints function when you're editing the tune, the notation is color coded as a reference for your edits (notes that match the chord, notes in the same scale, notes that increase the tension and other notes you need to be aware of). 4. Using simple steps, you can upload your finished tune as a video to YouTube along with the staff notation, or slideshow of photos. You can also send your tunes as email attachments in AAC or MIDI format, and it's really easy to make your own ringtones*1 too. *1: To use your tune as an iPhone ringtone, you need to connect to a Mac or Windows computer and transfer the tune to your iPhone via iTunes.
Screenshots
Verdict
The clearest difference is rating: mimiCopy at 4.2 against Chordana Composer's 2.8. mimiCopy also leads on review sentiment (70% vs 31%) and iOS requirement (8.0 vs 11.0). Chordana Composer's advantage is in-app purchases (none vs 1) and price ($3.99 vs $4.99). On ratings volume, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
mimiCopy costs $4.99 and Chordana Composer $3.99 up front. mimiCopy sells 1 one-off in-app purchase. Chordana Composer asks for nothing beyond the download.
mimiCopy holds the better App Store score, 4.2 against 2.8. Both are backed by a comparable volume of ratings — 10 and 8 respectively. Written reviews point the same way: 70% of mimiCopy's written reviews are positive against 31% of Chordana Composer's.
mimiCopy ships an update every 2 months, Chordana Composer every 6 weeks. The most recent releases landed on November 10, 2026 and November 11, 2026 respectively.
| Parameter | mimiCopy | Chordana Composer |
|---|---|---|
| Price | $4.99 | $3.99 — better |
| Rating | 4.2 (10 ratings) — better | 2.8 (8 ratings) |
| Positive reviews | 70.5% of reviews — better | 30.7% of reviews |
| Number of ratings | 10 — better | 8 |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 8.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 6 MB | 88 MB |
| Age rating | 4+ | 4+ |
| Developer | ART Teknika Inc. | CASIO COMPUTER CO., LTD. |
Customer experience
mimiCopy
Chordana Composer
Bugs and requests
mimiCopy
Reported bugs
25 issues- 転調バーが動かない (Pitch bar not moving)
- 曲が止まり針が狂ったように速くグルグル動く (Song stops and needle spins erratically)
- 無音で高速に曲の最後にいってしまう (Goes to end of song silently at high speed)
- 復元できない (Cannot restore purchases)
- 無料版に戻される (Reverted to free version)
Show 20 moreShow fewer
- アプリの表示が逆さま (App display is upside down)
- データが全部消えた (All data disappeared)
- Apple Watchと相性悪し (Poor compatibility with Apple Watch)
- ワイヤレスイヤホン再生時によく途切れる (Frequent disconnections during wireless earphone playback)
- drm付きの曲はApple Musicからインポートできない (Cannot import DRM-protected songs from Apple Music)
- IOSの更新後は、全く動作しなくなりました (Stopped working completely after iOS update)
- 会員登録できない (Cannot register as a member)
- 返信メールが届きません (Reply email not received)
- JBL Flip4未対応 (Not compatible with JBL Flip4)
- 複数でステレオ再生すると、次の曲で無音になってしまう (Becomes silent on next track when playing stereo with multiple devices)
- No Loading Of DRM Protected Songs Made App Useless
- Es funktioniert leider gar nicht mehr
- iTunesから曲を開けない (Cannot open songs from iTunes)
- アップグレード後に新しい曲を読み込めない (Cannot load new songs after upgrade)
- iPadをiPodと認識する (Recognizes iPad as iPod)
- Wifi接続がおかしい (Wifi connection is strange)
- Loop works, slow down doesn't
- VoiceOver accessibility issues
- Stürzt mit IPhone 4gs oft ab (Crashes often with iPhone 4gs)
- Nach dem Import des zweiten Titels geht nichts mehr (Nothing works after importing the second track)
Requested features
11 requests- Keyboard support for playback controls
- Support for Dropbox or Google Drive import
- Chinese language version
- Export altered music
- Search function for tunes
Show 6 moreShow fewer
- Ability to save presets/settings
- Background playback option
- Disable screensaver option
- MacBook version
- Recording function
- More extreme slow-down options
Chordana Composer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
mimiCopy
- Upgrade to Pro version$4.99
Chordana Composer
No in-app purchases









