Scale reference for banjo, guitar, piano, violin, bass and more. 200+ scales with playback options.

A utility app to allow one to quickly punch up this or the other pentatonic scale. On a bunch of different instruments maybe. That is where ScaleMaster took its origin. Since then it has gotten a bit more sophisticated in a sense, but still having a quality scale reference handy is good for any musician. Now with music notation. And so many more instruments. Then there is that circle of fifths window. And the sound is just fantastic these days with a over one hundred built-in full-range instrument sounds. Those are pretty cool actually. And clefs - yes clefs, who knew. So, there is a lot that you can do with the app and everything relates to some 200 hundred different type of listed scales. Your use case will vary, of course, but one guy in the band with ScaleMaster is good to have. A true universal app that includes a fantastic-looking true and full iPadOS version as well. Not just a big version of the iPhone app. Not too shabby for an inexpensive utility app. And did we mention all those instruments?

One thing we are particularly proud of - aside from our instrument designs - is the app's versatility on iPhone where landscape mode offers full instrument or notation views. Prop it up again for both; start working that scale. It is quite complex under the hood but oh so useful. And then there are those exercises. Exercises are very new in ScaleMaster. This is no DAW of course or notation app, but you can generate and playback all sorts of scale patterns in the app. Maybe even to play along with, but at least to listen to and understand the structure of those permutations (If interested in more of a music production angle to scale patterns, check out ScalePlay for iPad).

All instruments have been designed from the ground up in ScaleMaster and are quite beautiful. They are housed in fully scrollable views with 24 frets for string instruments and a full 88-key piano keyboard. We also added the entire classical string family of instruments and implemented left-handed mode as a vertical reflection which is easy to read and all string instruments can be detuned up to 7 semitones in either direction. So there's that.

With ScaleMaster’s chord matching feature an extensive list of chords can be matched to appropriate scales. That allows us to audition a bunch of different scales for a chord. See which one hits the mood best. Matches are displayed in the notation view with chord tones highlighted in red. On play the entire scale is played with the chord at the end. Chord matching comes in very handy when trying to determine which scales to use in improvisation and gives a number of alternatives to one's go-to scale choices.

Scales are elementary to all musicianship. They provide flavor and harmonic structure, but are at the same time fairly complex. Designed for the beginning musician as well as the professional, ScaleMaster has become a staple app for many musicians as an excellent tool towards advancement in theory and scales in particular. ScaleMaster provides help and guidance in almost every aspect and makes an easy task of looking up a scale in seconds, getting a taste of its flavor and practicing it.

Banjo, Bass, Cello, Double Bass, Guitar, Mandolin, Piano, Viola, Violin

Anything the matter, let us know. We are always available at support at rogame dot com and of course you have the links to documentation, forum, website, and everything else right here.

What’s New

Version 1.2.6

In this version we are taking another look at the new iPad Mini. Some layout fixes are included as well and the circle of fifths should display without indentation on iPhone. As always, anything the matter, let us know. We are always available at support at rogame dot com.

Ratings and Reviews

2.6 out of 5
5 Ratings

5 Ratings

fredreinrag ,


Will not start up on the new 2018 iPad Pro, crashes imediately

Developer Response ,

Thanks so much for taking the time to review ScaleMaster. Reviews help us improve the app, add new features and at times of course correct issues. There was indeed an issue running the app on the 2018 iPad Pro initially. In general we try to anticipate new devices with updates long before they hit the market. That year we missed something. Our apologies.

Camzilla54 ,

Too note on most scales is wrong

The top note in most scales is written incorrectly. It sounds the correct tone but is written as just a duplicate of the “leading tone.” That is not conducive to learning music notation. $5 not well spent.

Developer Response ,

Thanks so much for your review of ScaleMaster. We do appreciate it. And, yes, you found a bug. A very sneaky one. So sorry about that. When in exercise mode some 2 octave patterns were affected when in Eb, Ab or Db. In those cases the top note would be off by a millimeter. Ouch and thanks. In the future please consider using that huge "Report a bug" button in ScaleMaster for the fastest turnaround in a simple matter like this. Or just email us at support at rogame dot com.

deadtravis ,

Please fix top note of scale!

Second to last note is duplicated on staff.

If selecting a two octave scale (the E scale, for example), the “middle” E is not even notated, and the D note (preceding where it should be) is duplicated. PLEASE FIX THIS AS SOON AS POSSIBLE

Developer Response ,

Thanks so much for taking the time to write a review of ScaleMaster. Not everyone has the background and we really appreciate the time. The issue you are describing occurred in select scale patterns when in exercise mode and has long been fixed. It only occurred when displaying 2 octaves if the key was flat (e.g. Eb). Music notation is complex to say the least and we feel awful the error. In the future, please consider using that big "Report a Bug" button in ScaleMaster for simple matters like this or just email us. We can help so much faster once we know about something. Thank you ; )

App Privacy

The developer, RoGame Software, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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