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Best Key Signatures Apps

249+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated November 2026

The best key signatures apps on iPhone average 4.2★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.

Compare top Key Signatures Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1MyMusicTheory - Music TheoryMyMusicTheory - Music TheoryFree4.7★ (940)YesYesNov 2026
2Key Maestro: Key SignaturesKey Maestro: Key SignaturesFree3.0★ (2)NoNoOct 2026
3Music Theory Keys •Music Theory Keys •$0.993.3★ (4)NoNoOct 2026
4Notevision - Sight ReadingNotevision - Sight ReadingFree4.8★ (3.3K)NoYesNov 2026
5EarpeggioEarpeggioFree4.9★ (9.8K)NoNoNov 2026
6Piano Chords and ScalesPiano Chords and ScalesFree4.8★ (9.3K)NoYesNov 2026
7My Key 1.0My Key 1.0Free—NoNoMay 2026
8Key Assoc. Signature RealtyKey Assoc. Signature RealtyFree—NoNoMay 2026

Top Picks for Key Signatures

MyMusicTheory - Music Theory#1

MyMusicTheory - Music Theory by myrApps

Exercises, lessons and quizzes
Editor's Choice
📚 Education
4.7😊(940 ratings)
FreeAdsIn-App Purchases
MyMusicTheory - Music Theory screenshot 1
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MyMusicTheory - Music Theory screenshot 3
MyMusicTheory - Music Theory screenshot 4

Master music theory with interactive exercises, lessons, and quizzes. Covers a wide range of topics from basic notes to complex chords and scales. Supports various clefs and naming schemes for comprehensive learning.

What We Love

  • 🎉 Helpful for learning music theory
  • 💯 Great for practicing notes, chords, and intervals
  • 📚 Comprehensive coverage of music theory concepts
  • 🏆 Effective for passing music theory exams
  • 🤑 Affordable lifetime premium option

Room to Improve

  • 😞 Discouraging feedback when learning
  • 💰 Paywall for full app experience
  • 🤔 Some exercises use confusing or incorrect notation
  • 🌍 Terminology not aligned with regional standards
Key Maestro: Key Signatures#2

Key Maestro: Key Signatures by Aasiya Memon

Memorize the Circle of Fifths
Strong Contender
📚 Education
3.0(2 ratings)
Free
Key Maestro: Key Signatures screenshot 1
Key Maestro: Key Signatures screenshot 2

Learn and memorize musical key signatures with this app. It offers drills on sharps and flats in major and minor keys, utilizing the circle of fifths for study. A unique crab companion aids in the learning process.

Music Theory Keys •#3

Music Theory Keys • by Patrick Q. Kelly

Key Signatures testing
Worth Considering
🎵 Music
3.3(4 ratings)
$0.99
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This app helps musicians identify key signatures for major, minor, and diatonic modes. It features customizable quiz settings and a 'Grade Book' to track and share results, beneficial for students and professionals alike.

More Key Signatures apps to explore

FAQ about Key Signatures

What are the best key signatures apps for iPhone?
MyMusicTheory - Music Theory tops our key signatures apps ranking as of November 2026, with a 4.7-star average from 940 App Store ratings, and it's free to download.
Yes — 19 of the top key signatures apps we rank are free to download, including MyMusicTheory - Music Theory and Key Maestro: Key Signatures.
MyMusicTheory - Music Theory shows ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 249+ key signatures apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

Related searches

key maestro: key signatures