Privacy
This notice covers the SudoFlash iPhone app and website. Last updated: 17 September 2026.
Short version: no account is required. All AI processing runs on your iPhone, the core experience works offline, and the app contains no advertising trackers.
Controller
Apptheism® · Owner Jörg Klausewitz
Fischmarkt 17 · 78462 Konstanz · Germany
Email: hallo@apptheism.de
Processing in the app
Grid detection, digit recognition and Sudoku logic run locally on your iPhone. Scanned puzzles, corrections, hints and history remain in the app container. Apptheism operates no app or AI server for this content.
Camera and AR
With your permission, SudoFlash uses the camera to recognise the grid and printed digits. Camera images are neither saved to your photo library nor uploaded to Apptheism or an AI cloud service.
App Store and purchases
Downloads, subscriptions and restores are handled by Apple Media Services and StoreKit. Apple’s privacy terms apply to this processing.
Website
The website is delivered through Cloudflare Pages. Technical connection data may be processed to deliver and protect the site. The website uses no analytics, advertising services or cookies.
Your rights and contact
You may request access, correction, deletion, restriction, portability or object where applicable. Contact hallo@apptheism.de.