Flat or Sharp vs AxeScales
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flat or Sharp
This app helps you improve your musical ear by training you to identify flat or sharp intonation in musical intervals. It offers customizable difficulty levels, various interval types, and detailed progress tracking to guide your learning journey.
- Identify flat/sharp intonation
- All musical intervals included
- Customizable difficulty levels
- Melodic and harmonic intervals
- Progress tracking and streaks
- Practice suggestions and tips
Read full descriptionHide full description
Learn how to hear whether musical intervals are flat or sharp by playing a fun quiz-style game! Flat or Sharp includes all musical intervals from a minor 2nd all the way up to two octaves, in melodic or harmonic varieties. Difficulty levels are fully customizable with a variety of options to accommodate any level of musicianship, from beginner to seasoned pro. - Progressively hone your ear by setting desired tuning accuracy from +/- 50 cents all the way down to +/- 5 cents. - Play notes for as long as 4 seconds or as little as 0.2 seconds to work on how quickly you can recognize the intonation. - Play intervals harmonically or melodically; ascending or descending. - Adjust musical register and timbre of tones to suit your personal preferences. - Track your progress with percentage correct and longest streak of correct guesses, viewable by time frame, so you can see how your ear improves with practice! - Packed full of information on practice suggestions and tips for hearing each of the musical intervals!
AxeScales
Read full descriptionHide full description
Learn the Major and Minor Scales on Guitar. Select from Heptatonic (7 Note), Hexatonic (6 Note), Pentatonic (5 Note), Blues (6 Note), or Arpeggios (3 Notes), from any Root Note, for each Major and Minor Scale. (A total of 120 different combinations!) Shows the Scale Degree of each note in the Scale, with the Root Notes of each Scale highlighted. Each note will play when clicked. Fret numbers are shown below the Fretboard.
Screenshots
Verdict
The clearest difference is price: Flat or Sharp at Free against AxeScales's $1.99. AxeScales's advantage is in-app purchases (none vs 6) and update cadence (every 3 days vs every 65 months). On 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
Flat or Sharp is free to download; AxeScales costs $1.99 up front. Flat or Sharp sells 6 in-app purchases, starting at $2.99 per month. AxeScales asks for nothing beyond the download.
Flat or Sharp ships an update every 65 months, AxeScales every 3 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | Flat or Sharp | AxeScales |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 65 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 16.2 — better |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Euphorophonics, LLC | Joseph Svantner |
In-app purchases
Flat or Sharp
- Flat or Sharp Premium (Monthly)2 Months trial$2.991 Month
- Flat or Sharp Premium (Annual)$14.991 Year
- Both Interval Directions$0.99
- All Duration Options$1.99
- All Accuracy Options$2.99
Show 1 moreShow fewer
- BUNDLE - All Premium Options$4.99
AxeScales
No in-app purchases









