Music Calculator vs Chord Master Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Music Calculator
A music notation sketchpad for composing and practicing. Quickly input notes and rhythms with a calculator-style keypad, then hear them played back with various instrument sounds. Ideal for learning, practicing difficult passages, or capturing musical ideas.
- Calculator-style note input
- Precise playback with 25 instrument sounds
- Tempo control and looping for practice
- Support for multiple staves and voices
- MusicXML import and export
- Key and time signature changes
- Automatic beaming and tuplets
Read full descriptionHide full description
A sketchpad for music, for practice and for composing. Notes go in on a keypad as quick as a calculator, and play back exactly as written. FOR PRACTICE Copy out what you're learning: an exercise, a few difficult measures, the piece your teacher assigned. Hear how it should sound, then slow it down, loop it, and raise the tempo as you improve. Pianists can write both hands on a grand staff, and choirs can write out all four parts and hear them together. Check your rhythm counting or your harmony homework by ear. The keypad is simple enough for children to use, and the selected note's name, such as F#, shows on its key as you write. FOR COMPOSING Write down a melody, a chord progression or a four-part harmony before you forget it, and hear every part played back with real instrument sounds. Use one instrument or several, with up to four voices on each staff, and keep every idea in your library. HOW IT WORKS Tap a note value to add a note, drag up or down to set its pitch, and drag sideways for sharps and flats. The keys are large, so there are no toolbars of tiny icons and no stylus. WRITE IT • Notes and rests from double whole notes to 128th notes, with up to three dots • Chords, and up to four voices per staff, each in its own color with stems placed for you • Several parts, each with as many staves as it needs: a piano grand staff, SATB on two staves, a duet, a small group • Treble, bass, alto and tenor clefs, with clef changes anywhere • Every key signature, chosen from an interactive circle of fifths, with key changes anywhere • Simple and compound time signatures, and a pickup measure where a piece starts with one • Ties, accidentals, staccato, accents and tenuto • Triplets, quintuplets and nested tuplets • Automatic beaming HEAR IT • Precise playback in pitch, rhythm and tempo, looping continuously • Long-press play to set the tempo, from 30 to 240 BPM, even while the music plays: slow a passage down as far as you need, then raise the tempo as your playing improves • 25 instrument sounds, from grand piano and harpsichord to strings, brass, woodwinds, harp and guitar • Two metronome channels and a volume for every part • The score glides along as it plays and each note lights up as it sounds KEEP AND SHARE IT Every passage is saved to your library and named for you. Import MusicXML (.musicxml, .xml, .mxl) from other notation apps, with its notes, rhythms, keys and clefs, and export MusicXML to finish a piece in desktop notation software. Built for iPhone, one-handed, and for iPad, with a full-width keypad and a library sidebar. Pinch or double-tap to zoom. There are no ads and no account to create, and your music stays on your device. WHAT IT ISN'T Music Calculator is built for short passages and ideas, not symphonies. It doesn't do dynamics, slurs, lyrics or chord symbols, print or export PDFs, export audio or MIDI, or scan sheet music. If you need those, a desktop engraving program is the right tool. If you want to write a passage down and hear it in seconds, this is. TRY IT FREE To use Music Calculator, choose a monthly or annual subscription, each with a 7-day free trial for new subscribers, or a one-time lifetime purchase. The subscription is called Music Calculator Pro on Apple's purchase sheet and in your Apple Account settings. Payment is charged to your Apple Account at confirmation of purchase, or at the end of the free trial. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. You can manage or cancel subscriptions in your Apple Account settings. Any unused portion of a free trial is forfeited when you buy a subscription. Privacy Policy: https://music-calculator.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Chord Master Pro
Read full descriptionHide full description
For songwriters, musicians, and music learners. Chord Master brings chord editing, scale exploration, practice organization, and songwriting together in one simple workspace. Whether you're learning your first chords, developing new progressions, or capturing musical ideas, Chord Master helps you stay creative and organized. Features • Create Choose your instrument and start with chords, scales, or chord tabs. • Organize Store your creations in folders or quickly capture ideas in Inspiration. • Refine Edit/customize your chord shapes/progressions, and improve your arrangements with the chord tab editor. • Practice Plan your practice sessions and keep your musical growth on track. • Customize Build your own chord library and create personalized chord shapes that fit your playing style. Perfect for • Guitar players • Bass players • Ukulele players • Piano players • Songwriters • Music students • Music teachers • Anyone learning music theory or harmony Whether you're writing your next song or practicing every day, Chord Master keeps your musical ideas together in one place. Privacy Policy: https://coderlwm.github.io/src/privacy-policy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Chord Master Pro at every 2 days against Music Calculator's every 2 weeks. Chord Master Pro also leads on iOS requirement (15 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Music Calculator sells 3 in-app purchases, starting at $2.99 per month and Chord Master Pro sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Music Calculator ships an update every 2 weeks, Chord Master Pro every 2 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | Music Calculator | Chord Master Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15 — better |
| Further details — not scored | ||
| Size | 53 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | JET Powered Apps Ltd. | 万敏 赖 |
In-app purchases
Music Calculator
- Monthly7 Days trial$2.991 Month
- Annual7 Days trial$19.991 Year
- Music Calculator Pro$49.99
Chord Master Pro
- Unlock premium features.$0.991 Month
Questions
Is Music Calculator free?
Is Chord Master Pro free?
Do Music Calculator or Chord Master Pro have ads?
Which is updated more often, Music Calculator or Chord Master Pro?
Other comparisons















