Scales are elementary to all musicianship. They provide flavor and harmonic structure, but are at the same time fairly complex. ScaleMaster is designed to help in several key areas concerning scales. It lists over 200 scale types in all keys and shows them in music notation. There are four different clefs available (treble, bass, alto and tenor).

To help visualization ScaleMaster offers five virtual instruments (banjo, bass, guitar, mandolin and piano). These instruments are fully playable and feature overlays that show scale degree or position of notes in the current scale. All instruments can be shifted into different positions and are a lot of fun just to play around with.

Scales are listed by name in a master list that also contains additional information like rating and type. The notation display is automatically updated with each new selection. Light text coloring as well as the scale type indicator help easily distinguishing between different types.

With ScaleMaster's chord matching feature an extensive list of chords can be matched to appropriate scales. 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.

Designed for the beginning musician as well as the professional, ScaleMaster has become a staple app for many musicians and is an excellent tool towards advancement in theory and scales in particular. It makes an easy task of looking up a scale in seconds, getting a taste of its flavor and finding out how to play it.

• intuitive interface
• 211 different scales
• 4 different scale views
• virtual banjo, bass, guitar, mandolin and piano instruments
• alto, bass, tenor and treble clefs
• adjustable positions for all instruments
• adjustable tuning for all string instruments
• fully supports landscape and portrait orientations
• lockable interface
• semitone indicators
• scale rating
• scale type indicator
• support for left-handed players
• chord/scale matching
• displays note names, scale index or degree
• adjustable playback directions
• high quality banjo, bass, guitar, mandolin and piano samples
• support for sound libraries
• global transposition for horn players
• presets for common banjo, bass, guitar, mandolin tunings
• support for 5 and 6 string bass

App Support: We cannot respond to comments and feedback on the App Store. If you face any issues with ScaleMaster, please email them to We assure you it will be taken care of immediately.

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What’s New

Version 3.5.7

• This version includes some playback improvements.

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

Daveinca2000 ,

A great scale reference tool. It needs improvement on the UI.

Please fix:

1. The controls need to be moved farther away from the instrument. It is frustrating to accidentally hit a control button while playing notes. The virtual instruments are too small to accurately play--especially stringed instruments.

Wish List:

1. Add a horizontal orientation option to make playing easier.

2. Add a favorites list so scales can be grouped in a meaningful way--such as ethnic, jazz, blues etc. Scrolling through and finding scales is a a chore. Although it is sorted alphabetically, it needs a short alphabet quick index similar to Ipod song lists.

3. Add sounds that match the instruments. Only piano sound is included in this version.

4. Add the ability to superimpose, or toggle, a scale over another scale--such as a melodic minor over a dominant. This will allow a musician the instantly see and contrast common relationships among different scales.

5. Add the ability to play or hear a scale in the context of a chord/progression within a chosen key.

6. Strive to make it a learning tool, not just another reference.

Stolky ,


Fretboard way too close to controls, and designer acts like they've never heard about this problem. Don't bother until fixed!

musicmanatlanta ,

No wrong notes

Bkeypr is wrong, the Lydian aug. Scale has a D-flat as it should not a D. And that is the same as C#. One thing I will say is some scales are the same. Like the modal scales all have geographical names, like Javanese, and both titles are listed. I think this is actually a good thing. Also there are many variations like "Lydian #2" and "Lydian #6." As a professional musician I don't have a need for these, but for students, it helps emphasize certain scale degrees and promotes improvisation.


Arthur Roolfs
73.2 MB

Requires iOS 10.0 and watchOS 2.1 or later. Compatible with iPhone, iPad, and iPod touch.


English, Danish, Dutch, French, German, Italian, Japanese, Korean, Norwegian, Portuguese, Russian, Simplified Chinese, Spanish, Swedish

Age Rating
In-App Purchases
  1. 01 Keyboard Pack $0.99
  2. 02 Guitar Pack $0.99
  3. 03 Bass Pack $0.99


  • Family Sharing

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

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