Privacy Policy — Zikra: Flashcards & Memory

Last updated: 6 July 2026

Zikra is a local-first spaced-repetition flashcard app. It works without an account, and your study data stays on your device. This policy explains exactly what does and does not happen with your data.

Summary

• No account required. Your decks, cards, images, and study history are stored only on your device.
• No ads, no third-party analytics, no tracking. We don't sell or share your personal data.
• Optional AI features send the text (and any photos) you choose to turn into flashcards to an AI provider so it can generate cards. If you don't use AI, none of your card content leaves your device.

Data stored on your device

Decks, notes, cards, any images you add, your review/study history, streaks, and app settings are stored locally on your device only. We cannot see this data. Uninstalling the app removes it.

AI features (optional)

Zikra offers optional AI-assisted card creation. You choose whether to use it, and there are two modes:

• Zikra AI (managed): the topic or text you enter — and any photos you attach for a “scan to cards” — are sent over an encrypted connection to Zikra's processing service and then to our AI provider (OpenAI) to generate the cards. These requests are associated only with a random identifier generated on your device for usage/quota limits; they are not linked to your name, email, or any account. Content you send is used only to fulfill your request. It is not used to train AI models and is not sold.
• Your own key: if you enter your own OpenAI API key, requests go directly from your device to OpenAI under your key and OpenAI's terms. Your key is stored encrypted on your device and is sent only to OpenAI.

If you never use AI features, no card content is transmitted off your device.

Subscriptions (Zikra Premium)

Zikra Premium is an optional subscription sold and processed by Google Play. We do not receive or store your payment details. To confirm an active subscription, Google Play provides a purchase token, which we verify against Google's servers. You can manage or cancel your subscription at any time in the Google Play Store.

Text-to-speech and reminders

• Optional read-aloud uses your device's built-in text-to-speech; text is processed by your device/operating system.
• Study reminders are scheduled locally on your device.

Permissions

• INTERNET — only for the optional AI features and subscription verification.
• POST_NOTIFICATIONS — only for optional study reminders.
• com.android.vending.BILLING — only for the optional Premium subscription.

Data we do NOT collect

No accounts, no contacts, no location, no advertising identifiers, and no third-party analytics or behavioral tracking.

Third-party services

• OpenAI — generates AI flashcards (managed and own-key modes).
• Google Play — processes payments and subscriptions.
• Cloudflare — provides the processing infrastructure for the managed Zikra AI service.

Each has its own privacy policy governing its handling of data.

Children

Zikra is not directed to children under 13, and we do not knowingly collect personal information from children.

Changes to this policy

We may update this policy from time to time. Material changes will be reflected by updating the “Last updated” date above.

Contact

Questions about this policy or your data: revolvesoftware@gmail.com