Practice Log
Privacy Policy
Effective September 24, 2026.
Nothing you put in Practice Log leaves your iPhone or iPad. Names, practice times, pieces, notes and songs are stored only on the device, inside the app. We never receive them. There are no accounts, no ads, no analytics and no tracking. The only thing the app sends is a check on the one-time purchase, described below.
What stays on your device
Students' names, instruments and goals, every practice session, streaks and weekly totals, and the songs made in Studio. Deleting the app deletes all of it. We have no copy and cannot restore it.
The one-time purchase
The full version is a one-time purchase through Apple. Apple handles payment; we never see your card, your name or your Apple ID. To show the price, check whether the full version is unlocked and restore it on a new device, the app uses RevenueCat, a purchase service. RevenueCat receives the purchase record, a random ID the app makes up, and the basic details every request carries: device model, iOS version, language, App Store country, and an Apple identifier for this app on this device. It never receives names, practice times, pieces, notes or songs, and none of it is used to track anyone. We use the purchase records only to unlock the app. See RevenueCat's privacy policy.
Deleting your data
Deleting the app deletes everything it stored on your device. To have your purchase record deleted from RevenueCat, email us at the address below and we will delete it. Apple keeps its own record of the purchase under Apple's privacy policy.
Sound
The piano sound is made by the app on the device. The app never uses the microphone and never asks for it.
Sharing
If someone taps Share or Send week to teacher, the app makes a picture of the song or the week and hands it to the iOS share sheet. The picture goes only where that person chooses to send it. Sharing sits behind a quick check that an adult answers.
Children
Many Practice Log users are children practicing with their families. The app collects no personal information from anyone, children included. Buying, sharing and opening web pages each need an adult to answer a quick check first.
Changes
If this policy changes, the new version will be posted on this page with a new date.
Contact
Commonwealth Business Systems LLC. Email hello@commonwealth-systems.com.