Fretboard King vs ProFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fretboard King
Master every note on the guitar fretboard with interactive drills and guided lessons. Improve your solos and overall playing by building instant recall of note locations and patterns across the entire neck. Practice anywhere, anytime, with or without your instrument.
- Note-find drill
- Octave game
- Mic note detection
- Built-in tuner
- Guided lessons
- Fretboard Explorer
- Progress tracking
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Learn every note on the fretboard - the skill that unlocks solos and ups your level. Fretboard King drills you in fast sessions. The app names a note and a string, G on the A string. Tap where it is on the neck, or play it on your guitar and the app listens. You know instantly if you're right, and if you miss, the correct fret lights up. Round by round, you learn every note on every string. Includes learning hub for new learners. Core value: you learn every note on the guitar neck, so scales, chords and solos start to make sense. -Note-find drill. The app names a note and a string, and you tap where it is. You build instant recall of every note on the neck. - Rounds of 6, 12 or 24 notes. A round fits a spare minute or a long practice session. - Timed or untimed. Learn at your own pace, then push for speed. - String and fret filters. You drill exactly the part of the neck you want. - Octave game. Find one note on every string. You connect notes across the whole neck instead of learning them string by string. - Focus sessions. One tap drills your weakest string. Practice goes where you need it most. - Mic note detection. Play the note and the app checks it. Audio stays on your phone and is never recorded. You practise on the actual instrument, not just a screen. - Listening card. It shows the note you're playing in real time. You know right away whether you hit the right note. - Octave quiz on the guitar. Play a note, then its octave. Octave shapes end up in your hands. - Built-in tuner. An in-tune guitar means the app reads your notes correctly, with no separate tuner app needed. - 4 guided lessons: Open String Mastery, Landmark Frets, Standard Octaves, The B-String Shift. You get a step-by-step method, not just repetition. - Fretboard Explorer. Tap a note and see it everywhere on the neck. You see the patterns across the whole neck at a glance. - Progress sheet: accuracy trend, per-string bars, trickiest note, best streak, answer speed. You see exactly where you're improving and what to work on. - Daily Note: one question a day, with a link straight into a round. Keeps the habit going in a few seconds a day. - Progress nudge. It fires only when your accuracy has actually improved. It encourages you with real progress, not reminders for their own sake. IT WORKS Our data proves, players average 55% in their first round and increase in only a few sessions to above 80%. No sign-up, no account. You're practising within seconds of opening the app. No monthly fees. It's free and supported by ads, and heavy practice days can unlock ad-free overtime by watching one video. You can try the whole app before spending anything. Works offline. You can practice anywhere, even on the bus. Advanced players score 100%. Keep drilling until you do. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fretboardking.com/privacy/
ProFlow
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Pro Flow is a lyric workspace built for writing to a beat — on iPhone, iPad, Mac, and Windows, and as a VST3 inside your DAW. Keep verses, hooks, and ad-libs in one place. Import your tracks, tag sections, look up rhymes, record voice takes, shoot video performances, and pin photos, clips, and sticky notes on an inspiration board — then keep going without breaking the pocket. WRITE • Lyric catalog with folders, search, and recently deleted • Notepad with section tags so the song stays organized as you draft • Optional rhyme suggestions for a single word — not an AI songwriter • Link a beat to a lyric and write while it plays PLAY • Import audio into playlists and folders • Mini player and full player with A–B loops and tap tempo • Keep writing while a take or beat runs in the background CAPTURE • Voice memos for ideas the second they land • Video performances with a teleprompter over your beat • Inspiration boards for photos, videos, and notes EVERYWHERE YOU WORK Pro Flow is cross-platform. Use this app on iPhone and iPad. The same writer’s studio is also available as a standalone app on Mac and Windows, and as a VST3 plugin inside your DAW — so you can write in the same flow on your phone, at the desktop, or next to your session in Logic, Ableton, FL Studio, and more. A mobile App Store purchase covers the iOS app. Desktop and plugin access is licensed separately at theproflow.app. YOURS Your writing and media stay on this device. You own your work. Sign in only if you want optional cloud sync across your devices. Local files are never locked. Pro Flow is a writer’s studio, not a DAW replacement. Support: support@theproflow.app
Screenshots
Verdict
The clearest difference is in-app purchases: ProFlow at none against Fretboard King's 1. Fretboard King's advantage is update cadence (every 4 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Fretboard King sells 1 in-app purchase, starting at $1.99 per month. ProFlow asks for nothing beyond the download.
Fretboard King ships an update every 4 days, ProFlow every 3 weeks. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.
| Parameter | Fretboard King | ProFlow |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 28 MB | 55 MB |
| Age rating | 4+ | 12+ |
| Developer | Paul McCarthy | Daniel Sierra |
In-app purchases
Fretboard King
- Fretboard King Pro7 Days trial$1.991 Month
ProFlow
No in-app purchases









