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The developer

About Maikstrings

Independent Android developer from Cuxhaven. Music theory apps that are genuinely useful — no fluff, no sign-up.

7
Apps in Google Play Store
5+
Apps around circle of fifths
100%
Independently developed

Maikstrings — Music Theory from Cuxhaven

Maikstrings is an independent Android developer from Cuxhaven, Germany. A passion for music and software led to a collection of music theory apps — all aimed at making music theory understandable and practically accessible.

The focus is on the circle of fifths, scales and guitar tools like the capodaster. The apps are deliberately simple: no fluff, no unnecessary sign-ups — ready to use immediately, also offline.

The main app Circle of Fifths Auto is actively maintained and regularly receives new features: musical staff with speaker, interval visualization with sine waves, tuner for guitar, bass, ukulele, violin, mandolin and other instruments, metronome, and the Chord Ring for chord formulas.

Intervals ▶ All Apps on Google Play

Apps Overview

  • Circle of Fifths Auto — Main app, actively developed. Circle of fifths, scales, intervals, chords, metronome, tuner, Chord Ring.
  • Chord Circle — Chord diagrams and diatonic chords for all keys.
  • Capodaster Sheet Pro — Capodaster transposition tables for guitarists.
  • Circle of a fifth Pro — Ad-free Pro version of the circle of fifths.
  • Circle of fifths + — Extended version with additional features.
  • Chord of a Circle Pro — Pro version of Chord Circle.
  • Ad Earnings Service & More — Reporting tool for Android developers.

Contact & Legal Information

All legal information, privacy notices and contact details can be found on the corresponding pages: