Privacy Policy

Effective November 3, 2026 · Publisher: Applage LLC

Studibit helps you study using your own materials. You do not need a Studibit account. This policy explains what stays on your device and what online features send to our services.

Materials on your iPhone

Your library, original scans and files, notes and study progress are stored locally. Text recognition uses Apple's on-device services. Studibit does not provide automatic cloud library sync. Device backups and transfers may be handled by Apple according to your settings.

Optional AI processing

When you request AI features and give consent, selected or recognized text, the material title, your learning goal and level are sent to our backend and Anthropic to generate notes, explanations or practice. Original photos, scans and PDF files are not sent to the AI provider. Only send material you are allowed to share; avoid including sensitive personal information.

Our backend stores the submitted text, generated results and processing status to deliver your request. These can remain until you delete the material or use Settings → Delete server data. We log operation type, model and token counts for cost and reliability monitoring; these usage logs do not include lecture text. Anthropic processes requests under its own applicable API terms and retention settings; we do not claim zero retention. See Anthropic's Privacy Center.

Anonymous technical identity

A random installation secret is held in iOS Keychain. The server associates an anonymous identifier with authorization, consent, action usage and purchases. No name, email or social login is required to use Studibit. Deleting server materials does not reset your AI allowance or subscription: minimal identity, consent and usage records are retained to verify access and prevent abuse.

Subscriptions

Apple handles payments. We do not receive your full card details. Adapty processes purchase events, subscription status, product identifiers, an anonymous app identifier and technical device/app information needed for subscription delivery and analytics. Our integration disables IDFA collection, IP address collection by the SDK and Adapty attribution. See Adapty's policy and Apple's policy.

Duo

When you use Duo, your room's display names, study goals, timer state, reactions and room settings are sent to our server and shared with the invited participant. Your lecture text and private notes are not shown to the other participant by joining a room. Only share invitations with people you want to study with.

Service providers and logs

Our backend runs on Vultr infrastructure in the United Kingdom. Anthropic, Adapty and Apple may process data in other countries according to their terms. Infrastructure logs may contain IP addresses, request paths, times, status codes and error information for security and troubleshooting. Web access logs rotate daily with 14 rotated files retained. Database backups are kept for 7 days on the server; deleted content may remain in these backups until they expire.

Your choices

You can use local notes, scanning and focus without sending lecture text to AI. Permission is requested before AI processing. You can delete local materials in the library and remove server materials from Settings. Removing the app or deleting server data does not cancel an Apple subscription; manage subscriptions in your Apple Account settings.

For access, correction, deletion or privacy questions, contact moon.vpn.sup@gmail.com with “Studibit” in the subject. To locate anonymous records, we may ask for a relevant transaction or technical identifier, but never your Apple password. Parents or guardians can use the same contact for questions about a student's information. Applicable privacy rights depend on your location.

Updates

We update this page when our practices change. Material changes to AI processing may require renewed consent in the app.