Privacy policy
SpeedCuber4 has no server and does not sell or share any personal data. Everything you do in the app stays on your device, unless you turn on Google Drive sync, which saves your sessions in your own Google Drive.
What stays on your device
Your sessions, solves, times, scrambles, comments and settings are saved in the app's storage on your iPhone or iPad. They are included in your device or iCloud backups according to your iOS settings, under Apple's privacy policy.
Google Drive sync (optional)
Sync is off until you tap Sign in with Google in Settings. When you do:
- Data accessed: your Google account email address, shown in Settings so you know which account syncs, and the hidden application data folder that Google Drive keeps for SpeedCuber4 (scope
drive.appdata). The app cannot see or open any other file of your Drive. - Data stored: one file,
speedcuber4-sync.json, in that hidden folder, with your sessions, solves, times, scrambles and comments, including deleted ones so a delete reaches your other devices. - How it is used: only to keep the same sessions on the devices where you sign in with that account. The file goes directly between your device and Google; SpeedCuber4 has no server and never receives it.
- Sharing: the data is not shared with anyone, not used for advertising, and not used to train any model.
- Removal: Sign out in Settings stops syncing. To delete the file, open Google Drive on the web, Settings, Manage apps, SpeedCuber4, Delete hidden app data, or remove the app's access in your Google account security settings.
SpeedCuber4's use and transfer to any other app of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
GAN Smart Timer (Bluetooth)
When you connect a GAN Smart Timer in Settings, the app uses Bluetooth to receive the timer's state and times. This stays between the timer and your device; nothing goes online.
What the app does not do
- No SpeedCuber4 account. Sign in with Google is only used for the optional sync above.
- No analytics, no advertising, no tracking and no third party services that collect data.
- No network requests with your data, except the Google Drive sync you turn on: the app works fully offline.
Files you import or export
Import only reads the file you choose in the file picker. Export creates a file and opens the iOS share sheet; the file goes only where you send it.
Voice alerts and clipboard
Inspection voice alerts are spoken by iOS on your device. The app writes to the clipboard only when you tap Copy.
Deleting your data
Delete a solve or a session in the app, or delete the app to remove all of its data from your device. With sync on, deletes reach your Google Drive file too; see above to delete that file.
Children
SpeedCuber4 collects no data on its own servers from anyone, including children.
Changes
If this policy changes, the new version will be posted on this page with a new effective date.
Contact
Questions about privacy: open an issue on GitHub.