Pitch trainer vs Flat or Sharp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pitch trainer
Develop perfect and relative pitch with this ear training app focused on just intonation. Learn to identify and match harmonic intervals by ear, moving beyond equal temperament. Ideal for musicians and singers seeking precise intonation.
- Just intonation ear training
- Perfect and relative pitch development
- Double-stop note learning
- Harmonic interval matching
- Beat-based tone adjustment
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Ear training, play by ear, intervals, chords and rhythm — 15 games in one app. Warm up your ears before singing, band, orchestra, choir, guitar or piano practice. Harmonize teaches distance between notes by making you rebuild what you just heard. Your mic picks up your voice or instrument and shows how far off you are, in cents. No music theory needed: a friendly shrimp plays the example, and you copy it. ■ Build the interval - Double Stop — add a second note on top of a reference: octave, perfect fifth, major third and more - Chords — take one role inside a three-note chord and hold your part - Moon — a slow, low-gravity version of Double Stop for advanced ears - Low Register — the real bass range, so low that a phone speaker cannot reproduce the fundamental; you read the pitch from its overtones - Trill — hold one finger down and press/lift with another. 6 fingerings x 36 exercises ■ Read the score - Sight Reading — read the notes on the staff and answer on the two-row keyboard. The white keys are labeled with their note names, so you can count lines and spaces even if sheet music is new to you. 9 categories, 180 levels, 1,020 exercises ■ Rhythm - Rhythm — tap along with the scrolling score - Polyrhythm — two different pulses at once, one per hand - Mimic Taiko — call and response on Japanese drums. Hear a pattern, play it back - Silence — no sound at all. Measure time with your internal clock ■ Listen and remember - Play by Ear — reproduce the melody you heard on the keyboard. 9 categories, 129 levels, 516 phrases - Scales — trace a scale one note at a time - Arpeggios — hear a broken chord and follow it - Memory — a sound version of concentration: find the two takoyaki that ring alike - Goldfish Scooping — memorize each swimming fish by its note, then scoop them in the order given ■ Tools - Weekly Challenge — 5 tasks that change every week, with the example played only once. 3 runs per week, ranked on a Game Center weekly leaderboard - Metronome - Tuner — live readout in cents ■ Under the hood - 14 instrument sounds to choose from - Reference A from 440 to 446 Hz - Note names in English, German, Japanese or Italian - Rhythm games calibrate audio latency for your device - Judged against just intonation, so it carries straight over to choir, wind band, orchestra and ensemble work - A tutorial that gets you playing right away ■ Made for - Singers who want to stop drifting off pitch - Anyone training relative pitch - Players who want to pick up tunes by ear - Musicians chasing that moment when your note locks into the chord ■ Languages Japanese, English, German, Spanish, French, Italian, Polish, Portuguese (Brazil), Korean, Chinese (Simplified and Traditional) Free to start. Extra content and ad removal are one-time purchases — there is no monthly subscription.
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
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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!
Screenshots
Verdict
The clearest difference is rating: Flat or Sharp at 5.0 against Pitch trainer's 4.4. Flat or Sharp also leads on ads (none vs shown) and review sentiment (100% vs 68%). Pitch trainer's advantage is update cadence (every 4 days vs every 65 months) and ratings volume (415 vs 8). On price, in-app purchases, monetization model 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. Pitch trainer sells 7 one-off in-app purchases and Flat or Sharp sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Flat or Sharp holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Pitch trainer has 415 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 68% of Pitch trainer's written reviews are positive against 100% of Flat or Sharp's.
Pitch trainer ships an update every 4 days, Flat or Sharp every 65 months. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.
| Parameter | Pitch trainer | Flat or Sharp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (415 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 68.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 415 — better | 8 |
| Update frequency | Every 4 days — better | Every 65 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 54 MB | 4 MB |
| Age rating | 9+ | 4+ |
| Developer | Toshihiko Arai | Euphorophonics, LLC |
Customer experience
Pitch trainer
Flat or Sharp
In-app purchases
Pitch trainer
- Buy a coffee$4.99
- Unlock Moon Stage$4.99
- Unlock all Rhythm stages$4.99
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- Support generously$9.99
- Unlock All PRO Features$9.99
- Remove Ads$9.99
- Support a lot$29.99
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
- Remove Banner Ad$0.99
- All Duration Options$1.99
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- All Accuracy Options$2.99
- BUNDLE - All Premium Options$4.99








