OptiFlash only stores the information required to authenticate you, keep your decks in sync and deliver spaced-repetition insights.
Last updated: February 12, 2025Email address for login, decks and cards you create, and anonymized activity metrics that feed the review scheduler.
Data is processed to sync content across devices, compute due cards, prevent abuse and secure your account.
Information is hosted in the EU. We never sell data and only share it with infrastructure providers that are required to run OptiFlash.
You can export or delete your account directly from the app. Reach out if you need additional help or have privacy questions.