Scale Numbers Piano9.0.9 - App Store
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Publisher Description
This app lets you play melody and chords at the same time on your iPhone or iPad.
Record and live loop your compositions for improvising or songwriting.
Included theory lessons and songbook with hundreds of famous tunes which you can play with no previous music theory background.
Great for songwriters, singers, producers, music students or if you just want to play some recognisable tunes.
The whole app is based around simple scale numbers, which are the gold standard for understanding music.
Either use the built-in sampler instruments to play on your device, or connect to your DAW for full midi input to your favourite synths.
See a demo video of the app's features at scalenumbers.com
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Scalenumbers does not collect any user data:
https://scalenumbers.com/termsandprivacy
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If you're having an issue, please email me at support@scalenumbers.com rather than leaving a review, as apple doesn't send developers any alerts when reviews are left, so I won't know you've tried to contact me.
Version History Added some extra crash logging so I can track down where a crash is coming from. 9.0.9 Aug 7 When you open a tab or chord chart, the app now auto-loads the necessary chords and puts you in the right key.
If you have any issues, if this update breaks anything etc then let me know at support@scalenumbers.com and I'll fix it straight away! 9.0.8 Jul 1 Chords can now be auditioned from the chord picker menu, and can be specifically voiced on generation, instead of always being created in a raw formula.
This now matches the behaviour of the Inky AU/VST plugin. 9.0.7 Apr 1 Updated the chord pad save files to be compatible with the new AU/VST plugin.
I'm confident the auto update logic will all be fine, but I don't want anyone to lose their compositions. If you've made any recordings/globalSave files that you're really attached to, please back them up before updating. This way, if anything gets messed up when your old files are being updated to the new format, you could send me the backup files to fix manually for you. 9.0.6 Feb 23 Made it so the chords sustain-mode can be toggled in the humanise presets.
Also fixed a few bugs in the recording section. 9.0.5 10/21/2025 Fixed the autoSus behaviour for chord pads 9.0.4 10/11/2025 Rebuilt the chord generation engine and voicing control flow. It's way more future-proof than the way I had it originally, and matches up with the auv3 plugin which i'm releasing in the next couple of weeks.
There's a video on the youtube playlist showing how it works. (3.4 Chord Editor Section)
** Warning before you update: I've had to change a few core data structures during this update, and so any save files you have will be auto-migrated on the launch of this new version. Hopefully I've coded this all correctly and it should just work seamlessly. But, if you have a composition saved which you are particularly attached to, then i'd recommend exporting a save of it to your local files on your device. Then if for some reason the conversion goes wrong, you can send me the file and i'll convert manually and see where the error was.
If you've saved any user-chords, then you may need to remake them as the data-structure now saves whether they were made in major mode or minor mode, and allows for proper naming when toggling app polarity.
__
If you're having an issue, please email me at support@scalenumbers.com rather than leaving a review, as apple doesn't send developers any alerts when reviews are left, so I won't know you've tried to contact me. 9.0.3 10/06/2025 Fixed a memory-leak so now the app will need less dedotated WAM 9.0.2 07/29/2025 Just a couple of bugs and misspellings I missed in the last update. 9.0.1 07/17/2025 Recording mode, multiple instruments, chord arpeggiators, upgraded audio engine, general redesign.
A lot of the app has been rebuilt from the ground up, so any presets or save files you might have had in older versions will unfortunately no longer work with this new version. Preset handling is much smoother now so remaking and saving new ones should be easy.
Any purchase of the older version should carry over, so just click 'restore' and the app should return to full unlocked mode. If not, then that is a bug. Let me know and I'll fix it immediately.
If you're getting any weird behaviour after updating, then it might be best to completely remove the app and all its data, and then do a fresh install.
If you come across any other bugs please let me know and i'll try to fix them straight away. Contact email is in the app. 9.0.0 07/12/2025 Just fixed a bug where the keyboard wouldn't play when the interval picker was showing on iPad.
Working on a much bigger update with a sequencer, should be done in a few weeks. 8.111 02/08/2024 Added a 'Helper Mode' which is a built-in user manual. Turn it on in Settings> Misc, and any button you tap on will explain you what it does.
Added the function to copy/paste or swap chord buttons.
Changed the bass samples to ones with a less aggressive attack. 8.11 01/15/2024 Just added a global-mute button so if you're using the app as a midi controller in AUM or your DAW, you can easily mute the app's own sounds. 8.10.1 01/01/2024 Global presets feature: save/load complete app configuration snapshots.
Improved all the samples in the instruments.
Drum loops updated and play/stop button on front view
Other general layout updates etc. 8.10 12/28/2023 Added a third position for the octave dots on the keyboard. Can be toggled in the 'misc' page of settings. 8.09 12/05/2023 Fixed a few playback bugs 8.08 11/23/2023 Added ziffer numbers to keyboard
Added tonic-markers to keyboard 8.07 11/13/2023 Added celeste and synth pluck as internal instrument options
Couple of new drum loops added 8.06 11/03/2023 Chord interval controller now visually updates when user selects each pad menu.
Fixed note-off bug where in logicPro, cubase etc the notes were not stopped correctly when the chord pads are played in auto-sustain mode. Note transitions are now as expected. 8.05 10/31/2023 Minimum iOS version is now 16.0 to ensure compatibility. 8.04 10/10/2023 Fixed drag gesture on velocity buttons 8.03 10/05/2023 one-time purchase option for full version. 8.02 09/27/2023 Fixed a bug where bass midi note off would hang in some cases
Fixed bug where keyboard did not recall midi out channel
Few UI updates 8.01 09/05/2023 Complete re-build of the app from the ground up. Full midi support, effects and customizable chords. 8.00 08/22/2023 User chords save/load bug fix 7.5.02 10/28/2021
About Scale Numbers Piano
The company that develops Scale Numbers Piano is Scale Degrees LTD. The latest version released by its developer is 9.0.9.
To install Scale Numbers Piano on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-13 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Scale Numbers Piano as malware if the download link is broken.
How to install Scale Numbers Piano on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Scale Numbers Piano is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Scale Numbers Piano is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 9.0.9
posted on 2026-10-13
Version History Added some extra crash logging so I can track down where a crash is coming from. 9.0.9 Aug 7 When you open a tab or chord chart, the app now auto-loads the necessary chords and puts you in the right key.
If you have any issues, if this update breaks anything etc then let me know at support@scalenumbers.com and I'll fix it straight away! 9.0.8 Jul 1 Chords can now be auditioned from the chord picker menu, and can be specifically voiced on generation, instead of always being created in a raw formula.
This now matches the behaviour of the Inky AU/VST plugin. 9.0.7 Apr 1 Updated the chord pad save files to be compatible with the new AU/VST plugin.
I'm confident the auto update logic will all be fine, but I don't want anyone to lose their compositions. If you've made any recordings/globalSave files that you're really attached to, please back them up before updating. This way, if anything gets messed up when your old files are being updated to the new format, you could send me the backup files to fix manually for you. 9.0.6 Feb 23 Made it so the chords sustain-mode can be toggled in the humanise presets.
Also fixed a few bugs in the recording section. 9.0.5 10/21/2025 Fixed the autoSus behaviour for chord pads 9.0.4 10/11/2025 Rebuilt the chord generation engine and voicing control flow. It's way more future-proof than the way I had it originally, and matches up with the auv3 plugin which i'm releasing in the next couple of weeks.
There's a video on the youtube playlist showing how it works. (3.4 Chord Editor Section)
** Warning before you update: I've had to change a few core data structures during this update, and so any save files you have will be auto-migrated on the launch of this new version. Hopefully I've coded this all correctly and it should just work seamlessly. But, if you have a composition saved which you are particularly attached to, then i'd recommend exporting a save of it to your local files on your device. Then if for some reason the conversion goes wrong, you can send me the file and i'll convert manually and see where the error was.
If you've saved any user-chords, then you may need to remake them as the data-structure now saves whether they were made in major mode or minor mode, and allows for proper naming when toggling app polarity.
__
If you're having an issue, please email me at support@scalenumbers.com rather than leaving a review, as apple doesn't send developers any alerts when reviews are left, so I won't know you've tried to contact me. 9.0.3 10/06/2025 Fixed a memory-leak so now the app will need less dedotated WAM 9.0.2 07/29/2025 Just a couple of bugs and misspellings I missed in the last update. 9.0.1 07/17/2025 Recording mode, multiple instruments, chord arpeggiators, upgraded audio engine, general redesign.
A lot of the app has been rebuilt from the ground up, so any presets or save files you might have had in older versions will unfortunately no longer work with this new version. Preset handling is much smoother now so remaking and saving new ones should be easy.
Any purchase of the older version should carry over, so just click 'restore' and the app should return to full unlocked mode. If not, then that is a bug. Let me know and I'll fix it immediately.
If you're getting any weird behaviour after updating, then it might be best to completely remove the app and all its data, and then do a fresh install.
If you come across any other bugs please let me know and i'll try to fix them straight away. Contact email is in the app. 9.0.0 07/12/2025 Just fixed a bug where the keyboard wouldn't play when the interval picker was showing on iPad.
Working on a much bigger update with a sequencer, should be done in a few weeks. 8.111 02/08/2024 Added a 'Helper Mode' which is a built-in user manual. Turn it on in Settings> Misc, and any button you tap on will explain you what it does.
Added the function to copy/paste or swap chord buttons.
Changed the bass samples to ones with a less aggressive attack. 8.11 01/15/2024 Just added a global-mute button so if you're using the app as a midi controller in AUM or your DAW, you can easily mute the app's own sounds. 8.10.1 01/01/2024 Global presets feature: save/load complete app configuration snapshots.
Improved all the samples in the instruments.
Drum loops updated and play/stop button on front view
Other general layout updates etc. 8.10 12/28/2023 Added a third position for the octave dots on the keyboard. Can be toggled in the 'misc' page of settings. 8.09 12/05/2023 Fixed a few playback bugs 8.08 11/23/2023 Added ziffer numbers to keyboard
Added tonic-markers to keyboard 8.07 11/13/2023 Added celeste and synth pluck as internal instrument options
Couple of new drum loops added 8.06 11/03/2023 Chord interval controller now visually updates when user selects each pad menu.
Fixed note-off bug where in logicPro, cubase etc the notes were not stopped correctly when the chord pads are played in auto-sustain mode. Note transitions are now as expected. 8.05 10/31/2023 Minimum iOS version is now 16.0 to ensure compatibility. 8.04 10/10/2023 Fixed drag gesture on velocity buttons 8.03 10/05/2023 one-time purchase option for full version. 8.02 09/27/2023 Fixed a bug where bass midi note off would hang in some cases
Fixed bug where keyboard did not recall midi out channel
Few UI updates 8.01 09/05/2023 Complete re-build of the app from the ground up. Full midi support, effects and customizable chords. 8.00 08/22/2023 User chords save/load bug fix 7.5.02 10/28/2021
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