Last updated: January 2026
Cookies are small text files stored on your device when you visit a website or use a web application. They help us provide a better experience by remembering your preferences and keeping you logged in.
SumoStudy uses a minimal set of cookies. We do not use advertising or tracking cookies.
| Name | Purpose | Duration | Type |
|---|---|---|---|
| session_token | Keeps you logged in securely | 24 hours | Essential |
| theme | Remembers your light/dark mode preference | 1 year | Preference |
| tts-preferences | Saves your text-to-speech settings | Persistent | Preference |
In addition to cookies, SumoStudy uses your browser's local storage to save study preferences and UI settings locally on your device. This data never leaves your device and is not transmitted to our servers.
SumoStudy does not use any third-party advertising, analytics, or tracking cookies. If you use Stripe for payments, Stripe may set their own cookies in accordance with their privacy policy.
You can control and delete cookies through your browser settings. However, disabling the session_token cookie will prevent you from staying logged in.
If you have questions about our use of cookies, please contact us at [email protected].