Last updated: 19 October 2026
The short version
SheetSight collects no data. There is no account, no server, no analytics, no adverts and no tracking. The photos you take of your music, and everything the app works out from them, stay on your iPhone or iPad. I never see any of it.
Who makes it
SheetSight is published by Picksley Labs Ltd, a company registered in England and Wales (company no. 17349725). Registered office: Suite RA01, 195–197 Wood Street, London E17 3NU. I’m David Picksley, and I build it. “I” on this page means Picksley Labs Ltd.
Questions: support@picksley.ai
The camera
SheetSight asks for the camera so it can photograph a page of sheet music. It is the only permission the app asks for. It does not ask for your microphone, photo library, location, contacts or notifications.
If you say no, you can’t scan, but the practice tools still work. You can turn camera access on later in iOS Settings → SheetSight.
What happens to a scan
- The photo is read on your device. The app’s own recognition reads the notes, and Apple’s on-device text recognition reads words such as the title, composer and tempo.
- On devices with Apple Intelligence, the app can ask Apple’s on-device language model to suggest which piece it is. That runs on the device too. Where it isn’t available, you type the title yourself.
- Nothing is uploaded. SheetSight has no server and makes no network requests.
What is kept on your device
When you tap Save to Library, SheetSight keeps:
- the page photos
- the score it recognised from them
- details such as the title, composer, key, time signature and tempo, and where you last practised
It also keeps:
- your Daily Sight progress: which notes you’ve practised, how you got on, your reading stage, the title of any piece the notes came from, and a tally of the hours of the day you open Daily Sight
- your settings, such as note-label style and Rhythm Lab choices, and your quiz high scores
All of this sits in the app’s own private storage on your device. SheetSight does not ask for your name.
Backups
If you back up your iPhone or iPad to iCloud or to a computer, iOS includes SheetSight’s files in that backup, as it does for most apps. That copy is held by Apple or on your computer, under your control. I can’t access it.
Deleting your data
- One piece: in the Library, tap ••• next to the piece (or open it and tap ••• at the top), then Delete. This removes the piece, its page photos and its recognised score from your device.
- Everything: delete the app. iOS removes all of SheetSight’s data with it. A backup made before that may still hold a copy until it is replaced.
There is no button in the app to clear the whole Library, or reset Daily Sight, in one go.
What SheetSight does not do
- No accounts or sign-in
- No analytics and no crash reporting inside the app
- No adverts
- No tracking, and no use of the advertising identifier
- No selling or sharing of data, because there is none to sell or share
If you email me
I get your email address and whatever you write. I use it only to reply. I don’t add you to a mailing list, and you can ask me to delete our emails at any time.
Apple
Apple runs the App Store and iOS. If you have turned on Share with App Developers in iOS Settings, Apple may pass me crash reports and usage statistics that Apple says do not identify you. That is Apple’s feature, under Apple’s own privacy policy. SheetSight itself sends nothing. Apple also handles your purchase. I never see your payment details.
Links out of the app
The Open-source acknowledgements screen links to the websites of the projects SheetSight is built on. Tapping one opens Safari. Those sites have their own privacy policies.
Children
SheetSight is not aimed at children. It collects no data from anyone, of any age.
Your rights
Under UK data-protection law you have rights over personal data held about you. SheetSight sends me nothing, so I hold no personal data from the app. The only personal data I may hold is emails you choose to send me. If you think I’ve got something wrong, email me. You can also complain to the Information Commissioner’s Office at ico.org.uk.
Changes
If a future version changes any of this, for example by adding a feature that uses the internet, I’ll update this page and the App Store privacy details before that version ships, and change the date at the top.