Privacy Policy
Effective date: 2026-09-21
Corvyn is an offline abstract-reasoning trainer. It is built so there is nothing to collect: the app has no account, makes no network requests of its own, and sends no analytics or telemetry anywhere.
What Corvyn collects
Nothing leaves your device. Everything the app records about you — your practice history, your ability estimate, your progress and settings — is stored only on your device, in the app's own on-device database. It is never transmitted to us or to anyone else, because Corvyn has no server and makes no network connection to send it over. We never see it.
There is no account, no sign-in, no email capture, no advertising identifier, and no tracking of any kind.
Purchases
If you buy a paid tier, the purchase is handled entirely by the app store you bought Corvyn from (Apple's App Store or Google Play). Corvyn never sees or stores your payment details; the store processes the transaction and tells the app only whether the entitlement is active. The store's handling of that transaction is covered by that store's own privacy policy (Apple / Google), not this one.
Your data and your control
Because your data lives only on your device, you are always in control of it:
- Uninstalling Corvyn removes all of it.
- We hold no copy, so there is nothing for us to delete on your behalf and no request to make.
Children
Corvyn does not collect any personal data from anyone, including children.
Changes to this policy
If this policy ever changes, the updated version will be published here with a new effective date. Because the app collects nothing, any change can only ever narrow what is already nothing, or clarify wording.
Contact
Questions about this policy: cicckutyroff@gmail.com