Modacity vs Solo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Modacity
This app provides serious musicians with a professional metronome, chromatic tuner, and practice log. It helps track practice sessions, monitor progress, and improve timing and intonation for all instruments. Unlock advanced features with a premium subscription.
- Professional metronome with subdivisions and accent patterns
- Accurate and responsive chromatic tuner
- Automatic practice session tracking
- Practice statistics and improvement monitoring
- Support for all musical instruments
- Cloud sync for notes and recordings
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Stop ending practice with a question mark. Modacity is the Deliberate Practice System for serious musicians — helping you plan, record, reflect, and hear your progress session by session. USED BY PROFESSIONALS Serious musicians improve because their next session starts with a plan. "Musically life changing app! Amazing app that every serious musician should have! Bravo." -- Richard Stoelzel, President World Trumpet Society & Professor of Trumpet, McGill. "I am amazed how well the Modacity system works." -- Anne, amateur violinist “As a trumpet player (ergo, loudmouthed and opinionated) I’ve often been wrong. However, in this case I’ve never been wronger. The app has become the central pillar of my practice schedule and I’d be lost without it. With that in mind, the price is cheap!!” -- John Thirkell, trumpet & flugelhorn - Jamiroquai, Level 42, Buddy Rich Band "Swiss army knife to organize and focus my music practice. I can’t imagine my life without it" -- Armen, product manager & duduk player “Just wanted to tell you how helpful this app has been over the years. I got my first regional job at 640 hours and then one more regional gig and a one year with a big orchestra at 930 hours on the app.” -- Samuel Wamhoff, Principal Trombone - Modesto Symphony Orchestra; 2nd Trmb - Stockton Symphony; Acting 2nd - San Francisco Opera METRONOME — Professional-grade metronome with subdivisions, accent patterns, and tap tempo. The timing foundation every serious musician needs. CHROMATIC TUNER — Accurate, responsive, always available. Never practice out of tune again. PRACTICE PLANNER — Plan and track every session. Write what needs work mid-session, rate how it went, and come back to it next time. Never lose the thing you meant to fix. Start your first session. Know what to fix tomorrow. Enjoy an automatic 14-day free trial with your new account. Modacity helps musicians of all genres practice effectively; Classical to Rock, Bluegrass to Pop, Modacity works for everyone. Subscribe to Modacity Premium (monthly or annual) to unlock: • Practice Statistics • Unlimited Deliberate Practice Mode • All Metronome Features • Unlimited cloud-sync notes & recordings • Practice Folders • Full History Log • Practice Break Reminders Subscription payments will be charged to your Apple ID account and will automatically renew at $12.99 USD per month or $129 USD per year, unless auto-renew is turned off at least 24 hours before the end of the current billing period. You can manage or cancel your subscription in your App Store account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. Prices may vary by country. Terms of Service: https://www.modacity.co/legal/#terms For All Instruments! Piano Flute Violin Trumpet Percussion Cello Clarinet French horn Trombone Saxophone Tuba Oboe Bassoon Viola Bass Timpani Harp Guitar Voice Soprano Tenor Alto Baritone Bass
Solo
Master your guitar fretboard with this interactive trainer. Learn note names, intervals, chord changes, and scales through guided exercises. Designed by professional guitarists, it offers customizable workouts for all skill levels.
- Fretboard visualization
- Note name trainer
- Interval shape memorization
- Chord change outlining
- Scale practice
- Interactive fretboards
- Customizable workouts
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Solo is the ultimate practice App for mastering fretboard visualization, designed by world renowned guitarists Tom Quayle and David Beebee. Four powerful fretboard trainers allow you to work intuitively on each aspect of the visualization process; learning note names, memorising interval shapes, outlining chord changes, and practicing scales. Solo asks you to find intervallic functions against one root note, chord symbol or scale at a time, listens to the notes you play, and doesn’t move on until you’ve correctly found each note by its intervallic function in the specified order. Practice with Solo and finally learn your note names, master interval shapes, confidently play through chord changes and break out of scale boxes with intervallic functions. Start transforming your playing and confidence on the fretboard today! NOTE TRAINER The Note Trainer is perfect for beginner and intermediate players getting to grips with note names on the neck - the foundation of solid fretboard knowledge. ‣ Solo shows you random root notes to find and listens, waiting for you to get it correct. ‣ Slide on the interactive fretboards for helpful diagrams and to study alternative options. Choose from 6 string guitar (standard and 4ths tuning), 7 string guitar, 4 string bass & 5 string bass. ‣ Optional practice suggestions offer challenging ways to limit and test yourself. ‣ Duration based workouts allow you to craft the perfect practice session. INTERVAL TRAINER The Interval Trainer will help players at all levels work on interval shapes with intervallic functions - the key to unlocking true freedom on the fretboard. ‣ Choose any combination of intervallic functions to practice. ‣ Create custom interval groups or choose the intervals for ANY chord type or scale. ‣ The Interval Trainer will randomise your chosen intervals and ask you to find them against either a fixed or random root note. ‣ Slide on the interactive fretboards for helpful diagrams, showing you where all of the interval shapes are across the neck, and to study alternative options. Choose from 6 string guitar (standard and 4ths tuning), 7 string guitar, 4 string bass & 5 string bass. ‣ Duration based workouts allow you to craft the perfect practice session. CHANGES TRAINER In the Changes Trainer you find intervallic functions, using single notes to outline different chord types or sets of chord changes, a key skill for learning to improvise through chord changes. ‣ Practice outlining intervallic functions through over 100 common chord progressions and single chord exercises. ‣ 50 intervallic function levels. Go from simple chord tones to complex melodic structures and scales. ‣ Solo intelligently maps out the correct intervals over each chord and listens for you to play each intervallic function in the specified order. ‣ Powerful workout options provide almost limitless ways to challenge yourself. ‣ Transpose the key of any progression or exercise. ‣ Choose to randomly transpose the progression (or single chord exercise) each time it repeats. ‣ Work on voice leading chord tones through single note lines. SCALE TRAINER The Scale Trainer contains a vast array of scales and powerful workout options, allowing you to finally break out of the box and develop a much deeper understanding of how scales are constructed on the fretboard. ‣ Practice finding scales on the fretboard using intervallic functions. ‣ Over 50+ Scales and modes. ‣ Powerful workout options provide almost limitless ways to challenge yourself. ‣ Melodic sequence options let you focus on starting from any chord tone within the scale. ‣ Duration based workouts allow you to craft the perfect practice session.
Screenshots
Verdict
The clearest difference is price: Modacity at Free against Solo's $17.99. Solo's advantage is rating (4.7 vs 4.3) and review sentiment (83% vs 65%). On ratings volume, update cadence, ads and in-app purchases 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
Modacity is free to download; Solo costs $17.99 up front. Modacity sells 2 in-app purchases, starting at $12.99 per month and Solo sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Solo holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 286 and 659 respectively. Written reviews point the same way: 65% of Modacity's written reviews are positive against 83% of Solo's.
Modacity ships an update every 6 weeks, Solo monthly. Both last shipped on November 11, 2026.
| Parameter | Modacity | Solo |
|---|---|---|
| Price | Free — better | $17.99 |
| Rating | 4.3 (286 ratings) | 4.7 (659 ratings) — better |
| Positive reviews | 64.7% of reviews | 83.3% of reviews — better |
| Number of ratings | 286 | 659 — better |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | #90 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 123 MB | 231 MB |
| Age rating | 4+ | 4+ |
| Developer | BotRobot, Inc | Trio Software Ltd |
Customer experience
Modacity
Solo
User reviews
Modacity
From 286 App Store ratingsWhat we love
- 💡 Helps organize practice sessions
- 👍 Useful practice tools (metronome, recording, etc.)
- 🚀 Streamlines practice workflow
- 👍 Tracks practice progress and history
- 💡 Encourages deliberate practice
Room to improve
- 💰 Expensive subscription model
- 🐛 Crashes and stability issues
- 🔒 Requires account creation
- 👎 Limited free version functionality
- 👎 Cluttered or unintuitive UI
Solo
From 659 App Store ratingsWhat we love
- 🚀 Excellent practice tool
- 👍 Helps improve fretboard knowledge
- 👍 Versatile and configurable
- 👍 Detailed video tutorials
- 👍 Accurate note detection
Room to improve
- 🐛 Note detection issues
- 🐛 App crashes
- 🐛 Lack of customization options
- 🐛 Unintuitive for beginners
- 🐛 Limited functionality for the price
Bugs and requests
Modacity
Reported bugs
3 issues- Recordings stop playing unexpectedly
- Practice history data sometimes lost or inaccurate
- Crashes when creating new practice items
Requested features
5 requests- Add video recording capability
- Improve iPad support and layout
- Allow more customization of practice items and lists
- Implement better data export and backup options
- Add more drone and metronome features
Solo
Reported bugs
3 issues- Crashes when launching the app
- Inconsistent note detection
- Inability to save progress or settings
Requested features
8 requests- Add ability to create custom chord progressions
- Integrate metronome functionality
- Provide visual representation of intervals on staff
- Add option to practice natural notes only
- Implement option to hear chord tones in the background
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- Allow randomization of scale order
- Add support for non-standard tunings
- Implement sound feedback when finding the correct note
In-app purchases
Modacity
- Modacity Premium - Monthly14 Days trial$12.991 Month
- Modacity Premium - Annual$129.001 Year
Solo
- Custom Tunings$1.99
- Custom Chord Progressions$5.99









