iReal Pro vs Music Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iReal Pro
This app provides a virtual band accompaniment for musicians to practice with, offering realistic sounding instruments and a variety of styles. It also functions as a digital chord chart book, allowing users to create, edit, and share their own song charts.
- Virtual band accompaniment
- Create, edit, and share chord charts
- Thousands of downloadable songs
- Chord diagrams and scale recommendations
- Practice exercises and transposition
- Export charts and audio
- Cloud synchronization
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iReal Pro is two things musicians love in one app: a realistic backing band that plays along with you, and a huge free library of chord charts you can pull up anytime — at practice, at a jam session, or on a gig. Need to transpose a song for a singer? Done. Want to practice with a full rhythm section behind you? Hit play. Named one of TIME Magazine's 50 Best Inventions and trusted by thousands of students, teachers, and pros at schools like Berklee College of Music — iReal Pro has been helping musicians get better since 2008. BAND • 50 accompaniment styles — Swing, Bossa Nova, Blues, Funk, Rock, Bluegrass, Reggae, Latin, Gypsy Jazz, Country, and more • Customize each style with acoustic or electric piano, Fender Rhodes, guitars, upright or electric bass, drums, vibraphone, organ • 40 additional styles — blues, salsa, Brazilian — available as in-app purchases BOOK • Download thousands of free chord charts shared by the iReal Pro community • Create your own charts in minutes with the built-in editor • Organize charts into playlists for gigs, sets, or lessons PRACTICE • Adjust tempo, loop difficult sections, transpose to any key • Automatic tempo increase and key cycling for focused practice • Global Eb, Bb, F, and G transposition for horn players REFERENCE • Guitar, ukulele, and piano fingerings for any chord • Tap any chord in your chart to see how it's played • Scale suggestions for improvisation SHARE • Share charts and playlists with other iReal Pro users • Export charts as PDF or MusicXML • Export backing tracks as audio or MIDI files • Sync across iPhone, iPad, and Mac with iCloud FOR TEACHERS • Create playlists of exercises or tunes for students • Use in the classroom, over live stream, or while screen-sharing lessons We're a small team of musicians who built this app because we needed it ourselves. We hope you enjoy using it as much as we do.
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
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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/
Screenshots
Verdict
The clearest difference is price: Music Calculator at Free against iReal Pro's $21.99. iReal Pro's advantage is ratings volume (11K vs 3) and chart position (#5 vs unranked). On rating, review sentiment, update cadence and ads 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
Music Calculator is free to download; iReal Pro costs $21.99 up front. iReal Pro sells 3 one-off in-app purchases and Music Calculator sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
iReal Pro holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: iReal Pro has 11K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 83% of iReal Pro's written reviews are positive against 80% of Music Calculator's.
iReal Pro ships an update every 3 weeks, Music Calculator every 2 weeks. The most recent releases landed on November 13, 2026 and November 12, 2026 respectively.
| Parameter | iReal Pro | Music Calculator |
|---|---|---|
| Price | $21.99 | Free — better |
| Rating | 4.9 (11K ratings) — better | 4.7 (3 ratings) |
| Positive reviews | 83.3% of reviews — better | 80.0% of reviews |
| Number of ratings | 11K — better | 3 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | #5 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 179 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Technimo LLC | JET Powered Apps Ltd. |
Customer experience
iReal Pro
Music Calculator
Bugs and requests
iReal Pro
Reported bugs
3 issues- Occasional skipping or timing issues with playback
- Trouble with registration and login process
- Compatibility issues with newer devices or operating systems
Requested features
7 requests- Add ability to write rhythm notation
- Integrate with Real Books
- Improve sound quality and add more instrument options
- Add melodies and lyrics support
- Improve chord editing and customization
Show 2 moreShow fewer
- Add more styles and grooves
- Improve sync and backup functionality across devices
Music Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
iReal Pro
- Blues style backing tracks$6.99
- Salsa style backing tracks$6.99
- Brazilian backing tracks$6.99
Music Calculator
- Monthly7 Days trial$2.991 Month
- Annual7 Days trial$19.991 Year
- Music Calculator Pro$49.99








