SoundTether vs SheetScope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SoundTether
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Listen to your PC audio on your phone or connected earphones. 1. Download the free SoundTether PC app at soundtether.cottonray.com. 2. Open it on your PC to display the connection QR code. 3. Scan the QR code with your phone to connect. No account or manual address entry is needed. Check connection status and network latency. Audio keeps playing when the phone screen is off. Network conditions may affect connection and playback. Choose from English, Korean, Japanese, Simplified Chinese, Spanish, French, German, Portuguese and Russian in Settings. The camera is used only to scan the QR code. Photos and videos are not saved. An interstitial ad may appear when connecting. Remove ads Remove all ads with a one-time purchase. Restore purchases.
SheetScope
Transform sheet music PDFs, photos, or scans into editable digital scores. Convert MIDI files into sheet music. Recognition and editing occur directly on your device, with exports in MusicXML, MIDI, and PDF formats.
- Sheet music recognition from PDF, photo, or scan
- MIDI to sheet music conversion
- On-device editing of scores
- Playback of recognized scores
- Export to MusicXML, MIDI, and PDF
- Supports lead sheets, piano, SATB, and drum notation
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Turn a sheet-music PDF, photo, or scan into an editable digital score. Drop in a MIDI file and get sheet music the other way round. Recognition runs entirely on your iPhone, iPad, or Mac, and results export as MusicXML, MIDI, and PDF. ■ Free · Score recognition — the first page of a PDF, photo, or camera scan, shown on screen to check and edit · MIDI → score — MIDI files exported from a DAW become sheet music, with no bar limit · Editing — select notes, move them up or down, fix accidentals, listen · Add and delete notes, change durations, swap rests and notes, set repeats and 1st/2nd endings by hand · Playback — hear the recognised score right away ■ Pro (one-time lifetime purchase, not a subscription) · Recognise every page of a document · Export — MusicXML (opens in MuseScore, Sibelius, Finale and others), MIDI, PDF ■ What it reads · Lead sheets and single-line melodies with chord symbols · Piano grand staff · SATB choir systems · Drum notation · Key and time signatures, ties, slurs, triplets, chord symbols · Repeat barlines (1st/2nd endings are only partly read — treat them as a guide; missed endings can be entered by hand in the editor. D.C. and coda are not read) ■ About accuracy — please read before buying Measured against scores with known answers (our own tests, September 2026). · Clean printed lead sheets: notes (pitch and duration) 90-99%. Dense sixteenth-note songs around 80% · SATB choir: about 93% · Piano: simple pieces 95%+, complex pieces around 80% — treat as a guide · Drums: hi-hat and snare nearly exact; kick drum misses about half the hits in busy bars — treat as a guide · Ties about 87%, slurs about 60% · Photos: straight, well-lit photos match PDF results; tilted or blurry photos drop sharply · Handwritten and tablature scores are not supported · MIDI → score: quantised MIDI is exact. Piano with up to two voices is accurate; three or more voices and performed (unquantised) MIDI are a guide only Automatic recognition is a first draft. The app is built for checking and correcting in the editor, and it removes most of the time you would spend entering notes by hand. Try your own scores in the free tier before you decide. ■ No internet needed Recognition, editing, and export all happen on your device. Score images are never uploaded. No account, no ads. ■ Copyright Convert only scores you own the rights to, public-domain scores, or scores you have permission to use. The app is made for personal study and practice and has no sharing or upload features. ■ Made for · Players and arrangers moving paper scores into editable files · Producers turning lead sheets into MIDI for a DAW · Choir directors and singers making part-practice audio · Composers tidying MIDI sketches into notation
Screenshots
Verdict
The clearest difference is ads: SheetScope at none against SoundTether's shown. SheetScope also leads on update cadence (every 2 days vs every 6 days) and device support (3 vs 1). On price, in-app purchases 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. SoundTether sells 4 one-off in-app purchases and SheetScope sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
SoundTether ships an update every 6 days, SheetScope every 2 days. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.
| Parameter | SoundTether | SheetScope |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 days | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, Mac — better |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 56 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | JEONG HYEON CHOI | HYO SEOP LEE |
In-app purchases
SoundTether
- 커피 한 잔$0.49
- Remove ads$1.99
- 커피 세 잔$1.99
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- 커피 다섯 잔$2.99
SheetScope
- Pro Lifetime$5.99









