Comparison

Clef vs Notespawn

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

Head to head
About

Clef

Features
Read full description

Clef - Piano Practice Three minutes of piano drills a day, scheduled around what you're about to forget. Clef is a practice app for people who play piano, or want to. Not songs, not videos: focused drills, graded by how fast you actually answer and resurfaced by a spaced-repetition engine (FSRS) at the moment you're about to forget. READING - Note Naming - treble and bass, landmark notes first - Grand Staff - both clefs, interleaved - Ledger Notes - the notes hanging above and below the staff - Intervals - the distance between two notes, at a glance - Key Signatures - sharps and flats, in circle-of-fifths order AT THE KEYBOARD - Keyboard Mapping - find any note on the keys - Five-Finger Patterns - the shapes your hand learns first - Triads and Inversions - and how they move - Seventh Chords - the next layer of harmony - Major and Minor Scales - fingering included - Arpeggios - broken chords, across the octave - Hands Together - the coordination drill nobody practises enough Fifteen tracks in total. Each one teaches the idea before it drills you on it, so you are never guessing at something nobody explained. BUILT FOR THE INSTRUMENT Connect any MIDI keyboard and play your answers. Any octave counts. Or tap the note names and the on-screen keys. Note names follow do-re-mi or letters, whichever you think in. THREE MINUTES, HONESTLY SPENT Every session is a countdown. Every answer is timed. No lives, no gems, no guilt trips. Just a results screen that tells you the truth: what you got, your best run, and the odds you will still remember it next week. MADE FOR ADULTS Paper, ink, and one gold accent. Serif type. Tell Clef what you are working toward, whether that is reading sheet music fluently, getting a rusty skill back, or passing a grade exam, and your daily practice weights itself accordingly. Three minutes a day. That is the whole ask. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://clefdrills.com/privacy/

About

Notespawn

Features
Read full description

Notespawn generates unlimited piano sight-reading exercises that actually sound like music - not random notes on a staff. Most sight-reading apps hand you a fixed library that runs out, or generate note-soup that no composer would write. Notespawn builds every exercise from real harmonic progressions first, then shapes the melody and rhythm around them. The result reads like repertoire: phrases resolve, cadences land, and your eyes learn patterns that show up in actual music. DIAL IN YOUR LEVEL - Difficulty levels from beginner to advanced - Single line, hands together, or chord textures on the grand staff - Choose key signatures, time signatures, and tempo - Modulation control for advanced practice PRACTICE SMARTER - Every exercise is brand new, so you can never memorize your way out of reading - Note-by-note practice mode listens to your instrument through the microphone and checks what you play, right at the piano - no MIDI cable required - Built-in metronome and playback so you can hear the exercise and check yourself - Seeded generation: share a seed and any two players get the identical exercise, perfect for teachers assigning the same page to a whole studio - Export to PDF for printing or MIDI for your favorite apps BUILT FOR PIANISTS Designed around how piano reading actually works: two staves, two hands, voicings that fit under real fingers. No account. No ads. No tracking. Open the app and read.

Screenshots

Clef4 screens
Notespawn4 screens

Verdict

The call

The clearest difference is in-app purchases: Notespawn at none against Clef's 2. Notespawn also leads on iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Clef sells 2 one-off in-app purchases. Notespawn asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Clef versus Notespawn: the parameters behind the verdict, then further details
ParameterClefNotespawn
PriceFreeFree
Update frequencyEvery 3 daysโ€”
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS26.015.0 โ€” better
Further details โ€” not scored
Size11 MB2 MB
Age rating4+4+
DeveloperMel OwenThaddeus Arndt

In-app purchases

2 purchases

Clef

One-time2
  • Unlock Clef$9.99
  • Clef Lifetime$99.99
None

Notespawn

No in-app purchases

Questions

Is Clef free?
Clef is free to download, with in-app purchases available.
Is Notespawn free?
Notespawn is free to download, with no in-app purchases.
Do Clef or Notespawn have ads?
Neither Clef nor Notespawn shows ads.

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