Comparison

Clef vs Intonation Training

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

Head to head
About

Clef

Features
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Clef: Sight Reading Trainer Connect written notes, note names and piano keys through short, repeatable drills. Choose your reading level and session length, then start practising. New beginners start with a small group of C-position notes and patterns. Short explanations introduce unfamiliar concepts, and help stays available during practice. Spaced repetition uses your answers to schedule what to revisit. READING - Note Naming: treble and bass - Grand Staff: alternate between treble and bass - Ledger Notes: notes above and below the staff - Intervals: the distance between two notes - Key Signatures: sharps and flats AT THE KEYBOARD - Keyboard Mapping: find the named note - Five-Finger Patterns: repeat short patterns and read-and-play exercises - Triads and Inversions: recognise and play chord shapes - Seventh Chords: practise four-note chords - Major and Minor Scales: follow note patterns and fingering guides - Arpeggios: practise broken chords - Hands Together: coordinate paired notes Fifteen focused practice tracks, with daily mixed sessions and individual drills. PLAY ON SCREEN OR WITH MIDI Use the on-screen piano and answer buttons, or connect a compatible MIDI keyboard. Follow the note and register instructions for each drill. Note names can use letters or do-re-mi. For played patterns, β€œWatch & listen” demonstrates the exercise; β€œYour turn” returns to practice. Clef checks the notes you enter. Fingering guides are references, not a measurement of your physical technique. SHORT SESSIONS, USEFUL FEEDBACK Choose three or five minutes, then continue practising from the results screen when you want to keep going. Review your answers, clean recall and best run, with an estimated recall forecast for the items practised in that session. Adjust your reading level, session length and practice goals in Settings. Paper, ink and a single gold accent keep the focus on the music. Practice history stays on your device. No account is required. FREE AND FULL ACCESS Treble and bass focused reading practice and one mixed daily session per calendar day are free. Full access is available through annual or monthly subscriptions, or a one-time lifetime purchase. Prices and any eligible introductory offer are shown before purchase. Existing owners of the earlier one-time unlock retain their access. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://clefdrills.com/privacy/

About

Intonation Training

Features
Read full description

Intonation Training listens through your microphone and scores your intonation against written music, in time. A tuner shows you that one held note is 12’ sharp — it can't tell you that you go sharp on the leap into the high register, or flat when you tire at the end of a phrase, or that C#5 has been your problem note for a month. This does. Play the exercise; the app hears every note and shows you which ones you miss. How it works for real practice: ‒ Scored against written music, in time — eight measures on the staff, judged note by note as they pass. You train intonation the way it actually fails: in motion, at tempo, under a pulse — not one held note at a time. ‒ Trouble notes — the exact pitches you miss most, with hit rate and attempt count. "My intonation is shaky" becomes "your C#5 is 61% over 34 attempts." Now practice has a target. ‒ Play and Hear — Play opens the mic and scores you; Hear loops the melody through the speaker with no mic and no judgement, so you can learn how it should sound before you're graded. ‒ Wait for me — stop for a breath and the music freezes until you play again. Silence never turns into a wall of red. ‒ Four strictness levels — Learner ±25’, Amateur ±15’, Pro ±10’, Studio ±5’. The app grows with you, from "find the pitch at all" to studio-tight. ‒ Brass and woodwind — eleven transpositions plus a bass-clef mode. The staff shows what you read; scoring judges the concert pitch that actually sounds. Trumpet, cornet, horn, the sax family, Bb and A clarinet, bass clarinet, flute, piccolo, oboe and English horn — plus a bass-clef mode for trombone, euphonium, tuba and bassoon. ‒ Built-in tuner — when you just need to tune up, a one-tap chromatic tuner is right there: the nearest note and how many cents sharp or flat, with plain-language feedback. It follows your instrument's transposition and note-name setting, so it names the note you actually read. Track real progress: ‒ Per-exercise stats — attempts, best and average accuracy, current and best streak, fastest clean tempo, and an accuracy-over-time chart. Weeks of practice become a line going up. ‒ Badges to earn, a sample-locked metronome with an optional count-in, and auto-bump tempo that steps up on its own when you play a loop clean. ‒ Practice reminders that ask you back. Read music your way: ‒ Note names in letters (C D E), German (H/B), or solfège (Do Re Mi) — independent of the app's language. ‒ Available in English, Spanish, French, German, Portuguese, Italian, Japanese, Korean, Dutch, Polish, Swedish, Norwegian, Simplified Chinese and Traditional Chinese. 735 built-in exercises — major and minor scales, chromatics, pentatonics, blues, whole-tone, diminished, intervals and speed studies — plus import of song and library share codes from Trumpet Trainer, French Horn Trainer and Trombone Trainer. Free to start: ‒ Practise and score 24 built-in exercises free — the 1234 and 1231 patterns in all twelve keys — and listen to any exercise in Hear mode at no cost. ‒ A single one-time unlock opens everything — scoring on all 735 exercises, plus editing, importing share codes, and sharing your own. One purchase, no subscription. A tuner judges one note in isolation. Intonation Training scores a written line, at tempo, and remembers the result per exercise — so progress means something across weeks, not seconds.

Screenshots

Clef4 screens
Intonation Training4 screens

Verdict

The call

The clearest difference is update cadence: Clef at every 3 days against Intonation Training's fortnightly. Intonation Training's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Clef sells 2 one-off in-app purchases and Intonation Training sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Clef ships an update every 3 days, Intonation Training fortnightly. The most recent releases landed on October 10, 2026 and October 19, 2026 respectively.

Scorecard2 real differences Β· 4 level
Clef versus Intonation Training: the parameters behind the verdict, then further details
ParameterClefIntonation Training
PriceFreeFree
Update frequencyEvery 3 days β€” betterFortnightly
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS26.015.0 β€” better
Further details β€” not scored
Size67 MB37 MB
Age rating4+4+
DeveloperMel OwenEdmund Trujillo

In-app purchases

2 purchases

Clef

One-time2
  • Unlock Clef$9.99
  • Clef Lifetime$99.99
1 purchases

Intonation Training

One-time1
  • Unlock Everything$19.99

Questions

Is Clef free?
Clef is free to download, with in-app purchases available.
Is Intonation Training free?
Intonation Training is free to download, with in-app purchases available.
Do Clef or Intonation Training have ads?
Neither Clef nor Intonation Training shows ads.
Which is updated more often, Clef or Intonation Training?
Clef ships an update every 3 days, and Intonation Training fortnightly. Most recently, Clef was updated on October 10, 2026 and Intonation Training on October 19, 2026.

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