Clefs vs Sight Reading
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clefs
Master sheet music reading with daily exercises and a guided course. This app helps you instantly recognize notes across all clefs, from beginner to advanced levels. Practice reading and writing notes, track your progress, and even connect a MIDI keyboard.
- Step-by-step guided course
- Smart spaced review practice
- Reading and writing drills
- Support for all ten clefs
- MIDI keyboard connectivity
- Built-in music theory guide
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Learn to read sheet music fluently. Quick daily exercises, a guided course, and smart review take you from your first notes on the staff to instant recognition in every clef. Clefs is a focused note-reading trainer: no filler, just the skill that unlocks everything else in your musical life. Whether you're starting piano, joining a choir, switching to viola, or finally fixing the bass-clef gap you've had for years — a few minutes a day builds real reading fluency. WHAT YOU GET • A step-by-step course: from the treble staff to key signatures, ledger lines and beyond, with exams to prove your progress • Smart practice that remembers you: spaced review brings back exactly the notes you're about to forget • Reading AND writing drills — recognize notes on the staff, then place them yourself • All ten clefs: treble, bass, alto, tenor, soprano, mezzo-soprano, both baritones, French violin and sub-bass • A daily goal, streaks with freezes, and reminders that adapt to your routine • Detailed statistics for every clef and every note MADE FOR MUSICIANS • Connect a MIDI keyboard and answer on real keys • Warm sampled piano sound, precise notation, custom exercises with your own clefs, key signatures and timers • Built-in theory guide when you want the "why" behind the notes START WHERE YOU ARE A short placement test finds your level, so day one is neither boring nor overwhelming. New notes are introduced gradually, consolidated with review, and tested when you're ready. ONE PURCHASE, EVERYTHING FOREVER No subscription. A single one-time upgrade unlocks the full course, all clefs and the exercise editor — free content lets you build the habit first. Reading music is not a talent — it's a practice. Start today.
Sight Reading
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One note. Name it. Next. Most note trainers show you half a staff. Put a low note on a treble staff and it floats away on ledger lines that you never see in real music. This app draws the grand staff by default, both clefs together, with the ledger lines actually there. You hear every note. The note sounds as it appears, and a play button repeats it as many times as you want. Miss one and you hear the correct note too, so the answer arrives through your eyes and your ears at the same time. The tone is synthesised, not a recording, and it plays even with the ringer switch off. Turn it off with the speaker button and everything still works — the play button keeps working when you ask for it. Miss one and it tells you. Get a note wrong and the correct note appears on the staff next to your answer, in green, before the next question comes. At the end of the session you get the list of what you missed. Some apps just skip past an error and leave you guessing. The notes you miss come back. Every answer updates that note's accuracy. Notes you get wrong show up more often, and the same note never appears twice in a row. Two people running the same drill see different orders, because the app is following each of them. 26 drills, and nothing is locked. Treble and bass basics. The grand staff. Around middle C, where readers guess. Three ledger lines above the treble and below the bass. Six key signature drills from one sharp to three flats. Or build your own: pick the clef, drag the range note by note, choose any of the fifteen key signatures, answer by note name or on a keyboard, and set the session length. None of it is behind a payment. No microphone. No MIDI. No account. It plays sound but never listens, and it never connects to an instrument, so there is nothing to fail to detect. It declares no permissions at all. It works on a plane and in a practice room with no signal. Sharps and flats are handled properly. F sharp and G flat are the same key, so answering with the other spelling counts as correct — and the app tells you which spelling this key signature uses. Your progress is stored on this device only. Nothing is uploaded and nothing is collected. Deleting the app deletes it.
Screenshots
Verdict
The clearest difference is in-app purchases: Sight Reading at none against Clefs's 1. On price, ads, 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
Both are free to download. Clefs sells 1 one-off in-app purchase. Sight Reading asks for nothing beyond the download.
| Parameter | Clefs | Sight Reading |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Crazy Ootka Software AB | Jinwan Kim |
In-app purchases
Clefs
- Clefs Premium$6.99
Sight Reading
No in-app purchases








