Comparison

MuseSync vs Quick Theory

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

MuseSync

Features
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What if learning music felt like your favourite game? Whether you are picking out your very first note or preparing for Grade 8 theory, MuseSync turns learning music into something you will actually want to open every day: quick games, short lessons, instant feedback, and a score to beat. No instrument needed โ€” everything is played on screen, by ear, or with your voice. PLAY YOUR WAY TO GRADE 8 Five arcade-style games train the skills real musicians drill: โ€ข Note Rain โ€” catch falling notes before they hit the stave โ€ข Rhythm Tap โ€” hold the groove against the metronome โ€ข Melody Echo โ€” hear a phrase, play it back โ€ข Sight Read โ€” read ahead under time pressure โ€ข Sing the Note โ€” pitch it with your own voice, scored by the mic Every round earns XP. Every mistake costs a heart. Every comeback feels great. A GAME AROUND EVERYTHING โ€ข Earn XP for accuracy, not just for finishing โ€ข Keep your daily streak alive โ€” seven days makes a perfect week โ€ข Climb the weekly league against other learners โ€ข Unlock achievements as your skills stack up No account needed. Open the app and play. A REAL SYLLABUS UNDERNEATH This is not trivia. 110 bite-size lessons take you from your first note to analysing a fugue: โ€ข Music Reading (Grades 1-2) โ€” notes, clefs, rhythm, key signatures โ€ข Tonal Harmony (Grades 2-3) โ€” intervals, time signatures, minor keys โ€ข Harmony & Keys (Grades 4-5) โ€” circle of fifths, triads, inversions, cadences โ€ข Advanced Harmony (Grades 6-7) โ€” seventh chords, modulation, counterpoint, fugue โ€ข Score Mastery (Grade 8) โ€” chromatic harmony, orchestral scores, composition โ€ข Professional Practice (Diploma) โ€” teaching, research, career, copyright Work through them in order, or jump straight to the grade you are preparing for. Notation is engraved with the same professional music font used by real scorewriters, so what you learn here is exactly what you will read on paper. LEARN BY DOING, NOT BY GUESSING Lessons end in exercises that make you do the thing, not pick the thing: โ€ข Write notes onto a real stave โ€ข Build chords and progressions by hand โ€ข Identify intervals, chords and cadences by ear โ€ข Tap rhythms in time โ€ข Sing back phrases using your microphone โ€ข Compose short melodies and get instant feedback IT REMEMBERS WHAT YOU FORGET Theory fades if you only meet it once. MuseSync tracks every skill you practise and schedules it to return just before it slips, using a proven spaced-repetition model. Short Refresh sessions revive your three weakest skills โ€” no redoing whole lessons. MADE FOR THE WHOLE FAMILY MuseSync has a dedicated Kids mode. Younger children get a friendly, colourful space with simple ear- and rhythm-training games โ€” Higher or Lower for pitch, Clap Along for rhythm โ€” while grown-ups keep the full Grade 1 to Diploma journey. A parent gate keeps purchases in adult hands. WHO IT IS FOR โ€ข Complete beginners โ€” start from your very first note โ€ข Anyone who tried a theory book and gave up โ€ข Students preparing for a graded exam โ€ข Players who never learned to read properly โ€ข Teachers setting structured practice between lessons โ€ข Families โ€” a dedicated Kids mode for younger children Five minutes a day is enough. Your streak is waiting. Made by Toolbone. Website: https://www.toolbone.com Privacy: https://www.toolbone.com/privacy-policy

About

Quick Theory

Features
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Quick Theory teaches real music theory the way a friendly teacher would: one small idea at a time, with your hands on the answers. TYPE THE MUSIC No instrument needed. You answer with a letter keyboard โ€” A to G, sharps and flats โ€” and quick taps. The piano on screen is your teacher's piano: it plays and shows, you listen and spell. EIGHT COURSES THAT ADD UP โ€ข Introduction to Music Theory โ€” the twelve notes through scales, keys, intervals, chords and progressions โ€ข Introduction to Music Theory, Part Two โ€” minor for real, pentatonics and blues, inversions, sevenths and cadences โ€ข Reading Rhythm โ€” note values, time signatures, and counting that sticks โ€ข Ear Training, Part One โ€” from "up, down or same" to hearing a melody's shape and finding home โ€ข Chords by Ear โ€” scale degrees, chord colors, bass lines and cadences โ€ข Advanced Chord Construction โ€” build any chord in any key, decode any symbol on a chart โ€ข Guitar Theory, Part One โ€” the fretboard map, CAGED, barre chords, and your first improv map โ€ข Songwriting โ€” verses, choruses, hooks, prosody, and finishing the song EAR TRAINING DRILLS Six configurable drills that build the ear behind the theory: Interval Recognition, Melodic Dictation, Chord Progressions, Chord Qualities, Scale Degrees, and Meter Detection. Set the range, the speed, and the answer surface โ€” solfรจge or piano โ€” and practice exactly what you're weak at. A TOOLKIT THAT COMES WITH IT Look anything up: Chords, Scales & Progressions, Circle of Fifths, Scale Fingerings, Alternate Tunings. Practice with a Tuner & Pitch Pipe, Metronome, Slow Downer, Piano, Sight Reading, Random Note, and Jam Along โ€” a band that loops while you play over it. Write with Lyric Studio, Melody Helper, Riff Recorder, and Tab Studio, a full guitar tab writer that plays back and exports. MISTAKES ARE PART OF THE PLAN Wrong answers get real explanations โ€” not just "incorrect." Miss the same idea twice and the app changes how it asks. Genuinely stuck? The lesson steps aside, tomorrow it invites you back, and nothing guilt-trips you in between. SPELLING COUNTS A-sharp and B-flat share a piano key but mean different things. Quick Theory is the rare app that teaches you why, gently, at exactly the moment it matters. MADE TO RESPECT YOU No account. No ads. No tracking. Lessons and tools work offline, and your progress, songs, lyrics and recordings sync through your own private iCloud โ€” only you can reach them. Speed Rounds review what you've learned, a Weak Spots quiz targets what you keep missing, and a lenient streak celebrates showing up and forgives a missed day. Whether you sing, play, produce, or just want to finally understand what "the key of F major" means, Quick Theory gets you there a few minutes at a time. ONE MEMBERSHIP, EVERYTHING INCLUDED Quick Theory Plus unlocks every course and every tool, starting with a free trial. Subscribe monthly or yearly, or buy once and keep it forever. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends; manage or cancel in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MuseSync4 screens
Quick Theory4 screens

Verdict

The call

The clearest difference is update cadence: MuseSync at weekly against Quick Theory's every 3 weeks. MuseSync also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. MuseSync sells 5 in-app purchases, starting at $7.99 per month and Quick Theory sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MuseSync ships an update weekly, Quick Theory every 3 weeks. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

Scorecard2 real differences ยท 4 level
MuseSync versus Quick Theory: the parameters behind the verdict, then further details
ParameterMuseSyncQuick Theory
PriceFreeFree
Update frequencyWeekly โ€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better18.0
Further details โ€” not scored
Size160 MB87 MB
Age rating4+4+
DeveloperToolbone LLPHANOCH YOSEF LIB

In-app purchases

5 purchases

MuseSync

Subscriptions4
  • Playlister$7.991 Month
  • Maestro$17.993 Months
  • Virtuoso$32.996 Months
Show 1 more
  • Super Star$45.991 Year
One-time1
  • Lifetime Access$99.99
3 purchases

Quick Theory

Subscriptions2
  • Monthly7 Days trial$4.991 Month
  • Yearly7 Days trial$29.991 Year
One-time1
  • Lifetime$59.99

Questions

Is MuseSync free?
MuseSync is free to download, with in-app purchases available.
Is Quick Theory free?
Quick Theory is free to download, with in-app purchases available.
Do MuseSync or Quick Theory have ads?
Neither MuseSync nor Quick Theory shows ads.
Which is updated more often, MuseSync or Quick Theory?
MuseSync ships an update weekly, and Quick Theory every 3 weeks. Most recently, MuseSync was updated on September 28, 2026 and Quick Theory on September 15, 2026.

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