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

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.

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 update cadence (every 4 days vs every 7 months). Solo Harmony's advantage is in-app purchases (none vs 7) and ads (none vs shown). On 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

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 415 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 October 14, 2026 and October 16, 2026 respectively.

Scorecard8 real differences · 2 level
Pitch trainer versus Solo Harmony: the parameters behind the verdict, then further details
ParameterPitch trainerSolo Harmony
PriceFree — better$0.99
Rating4.4 (415 ratings) — better4.0 (3 ratings)
Positive reviews68.3% of reviews — better20.0% of reviews
Number of ratings415 — 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 iOS14.013.0 — better
Further details — not scored
Size54 MB1 MB
Age rating9+4+
DeveloperToshihiko AraiMasanori Katsuta

Customer experience

Pitch trainer

All ratings415 ratings
Positive85.1%
Neutral4.8%
Negative10.1%
Written reviews101 reviews
Positive68.3%
Neutral11.9%
Negative19.8%

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 415 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 October 14, 2026 and Solo Harmony on October 16, 2026.

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