Comparison

Pitch trainer vs Solo Harmony

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Just intonation ear training
  • Perfect and relative pitch development
  • Double-stop note learning
  • Harmonic interval matching
  • Beat-based tone adjustment
Features
Read full description

Hear a chord, then build it yourself. No multiple choice: slide your finger until your note locks in with the others. 18 ear training games for intervals, chords, relative pitch, play by ear, sight reading and rhythm. Warm up your ears before singing, band, orchestra, choir, guitar or piano practice. Most ear trainers ask you to pick the right answer. Harmonize asks you to make it. A friendly shrimp plays the example; you slide your finger up and down the screen to bend your own note toward it. When it is slightly off you hear beats, a slow wobble in the sound. When the wobble disappears and the notes melt together, you have found it. No music theory needed. ■ New here? Start with the Tutorial The Tutorial card on the home screen walks you through it: hold, slide, listen for the wobble, stop when it melts. The green button replays the example as often as you like. ■ 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 - Drone: like a bagpipe, a drone sounds the whole time. Tune shifts and phrases over it, one note at a time, until the beating stops - 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. 10 categories, 200 levels, 1,140 exercises - Bass Clef: the same game on the bass staff, for bass guitar, cello and the piano's left hand ■ Rhythm - Rhythm: tap along with the scrolling score - Polyrhythm: two different pulses at once, one per hand - Mimic Taiko: call and response on Japanese taiko drums. Hear a pattern, play it back - Silent: the sound stops. Count the seconds in your head and tap at the right moment ■ Listen and remember - Play by Ear: reproduce the melody you heard on the keyboard. 9 categories, 129 levels, 516 phrases - Scales: hear a scale, then rebuild it one note at a time - Arpeggios: hear a broken chord and pinpoint each chord tone - Harmonics: a string's fundamental plays, then one of its overtones. Name the note it becomes - Memory: a sound version of the classic card-matching game. Flip takoyaki (Japanese octopus balls) and find the two that ring alike - Goldfish Scoop: a festival game from Japan. An example sound plays; scoop the swimming goldfish that sings in the same tone ■ 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 through the mic ■ Under the hood - 14 instrument sounds to choose from, plus 5 bass instruments for the Low Register stage - 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 - Tutorial for first-timers ■ 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 ■ About ads and purchases Free to start, with ads. Remove Ads is a one-time purchase that turns off both banner and full-screen ads. Extra content is also a one-time purchase; there is no monthly subscription. Reinstalled the app or switched devices? Tap Settings > Restore Purchases to bring your purchases back. ■ Languages Japanese, English, German, Spanish, French, Italian, Polish, Portuguese (Brazil), Korean, Chinese (Simplified and Traditional)

About

Solo Harmony

This app synthesizes harmony parts with your solo singing in real-time. Mix up to five harmony parts using an ad-lib keyboard and adjust pitch for chorus effects. Record and playback synthesized sounds, or use it for karaoke practice.

Highlights
  • Ad-lib Harmony Mix engine
  • Real-time multi-part mixing
  • Subtle pitch shift for chorus effect
  • Recording and playback
  • Input from microphone, files, and other apps
  • Karaoke practice mode
Features
Read full description

Automatically harmonizes with your solo singing. ◆ Equipped with an [Ad-lib Harmony Mix] engine, allowing you to synthesize harmony parts with ad-lib performances while singing. ◆ Use the ad-lib keyboard to mix up to 5 parts simultaneously in real-time. ◆ The subtle pitch shift setting allows you to produce a chorus effect. ◆ Supports recording and playback of synthesized sounds. ◆ Supports not only microphone input, but also recording files and shared files from other apps. ◆ You can mix harmony parts while playing audio files. ◆ Useful for practicing karaoke harmony by playing the original vocals quietly and the harmony parts loudly. ◆ Recorded files can be sent to AirDrop, SNS, etc. as shared files. ● Notes: ・To prevent howling, the app automatically disables the microphone input signal while playing audio files. ・When using Bluetooth earphones, it may not be possible to monitor the sound being recorded.

Screenshots

Pitch trainer4 screens
Solo Harmony4 screens

Verdict

The call

The clearest difference is review sentiment: Pitch trainer at 68% against Solo Harmony's 20%. Pitch trainer also leads on price (Free vs $0.99) and rating (4.4 vs 4.0). Solo Harmony's advantage is in-app purchases (none vs 7) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

Pitch trainer is free to download; Solo Harmony costs $0.99 up front. Pitch trainer sells 7 one-off in-app purchases. Solo Harmony asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Pitch trainer holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Pitch trainer has 416 ratings behind it against 3, 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 20% of Solo Harmony's.

UpkeepUpdate frequency

Pitch trainer ships an update every 4 days, Solo Harmony every 7 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard9 real differences · 1 level
Pitch trainer versus Solo Harmony: the parameters behind the verdict, then further details
ParameterPitch trainerSolo Harmony
PriceFree — better$0.99
Rating4.4 (416 ratings) — better4.0 (3 ratings)
Positive reviews68.3% of reviews — better20.0% of reviews
Number of ratings416 — better3
Update frequencyEvery 4 days — betterEvery 7 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size101 MB1 MB
Age rating9+4+
DeveloperToshihiko AraiMasanori Katsuta

Customer experience

Pitch trainer

All ratings416 ratings
Positive85.1%
Neutral4.8%
Negative10.1%
Written reviews104 reviews
Positive68.3%
Neutral11.5%
Negative20.2%

Solo Harmony

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews5 reviews
Positive20.0%
Neutral20.0%
Negative60.0%

In-app purchases

7 purchases

Pitch trainer

One-time7
  • Buy a coffee$4.99
  • Unlock Moon Stage$4.99
  • Unlock all Rhythm stages$4.99
Show 4 more
  • Support generously$9.99
  • Unlock All PRO Features$9.99
  • Remove Ads$9.99
  • Support a lot$29.99
None

Solo Harmony

No in-app purchases

Questions

Is Pitch trainer free?
Pitch trainer is free to download, with in-app purchases available.
Is Solo Harmony free?
Solo Harmony costs $0.99, with no in-app purchases.
Which has better reviews, Pitch trainer or Solo Harmony?
Pitch trainer is rated higher. Pitch trainer averages 4.4 out of 5 from 416 ratings, while Solo Harmony averages 4.0 from 3 ratings.
Do Pitch trainer or Solo Harmony have ads?
Pitch trainer shows ads; Solo Harmony does not.
Which is updated more often, Pitch trainer or Solo Harmony?
Pitch trainer ships an update every 4 days, and Solo Harmony every 7 months. Most recently, Pitch trainer was updated on November 6, 2026 and Solo Harmony on November 3, 2026.

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