Effective date: May 12, 2026 · Last updated: May 12, 2026
Cookie Policy
This Cookie Policy explains how Mythra uses cookies and similar technologies. It is part of, and should be read alongside, our Privacy Policy.
1. What cookies are
Cookies are small text files placed on your device by websites you visit. They are widely used to make sites work, or to work more efficiently, and to provide information to the owners of the site. The same principles apply to similar browser-storage technologies such as localStorage, which we also describe here.
2. The cookies and storage Mythra uses
Mythra uses only strictly necessary cookies and a small set of preference keys in your browser’s localStorage. We do not use any cookies for advertising, analytics, behavioural profiling, or third-party tracking.
Cookies (set by us or our processors):
| Name | Purpose | Duration | Type |
|---|---|---|---|
sb-* (Supabase Auth) | Keeps you signed in. These tokens identify your session with Supabase, our authentication and database provider. | Session + refresh window | Strictly necessary |
Browser localStorage (stored on your device, never transmitted to us):
| Name | Purpose | Duration | Type |
|---|---|---|---|
mythra_cookies_choice | Remembers whether you accepted or dismissed the cookie notice so it does not re-appear. | Until cleared | Strictly necessary |
mythra_active_world_id | Remembers which world you had open last so it reopens automatically next time. | Until cleared | Strictly necessary |
mythra_translator_history_* | Stores the most recent phrases you have translated, per constructed language, so the translator panel can show your history. | Until cleared | Strictly necessary |
lk_split_pos | Remembers the manuscript editor’s split-pane position between sessions. | Until cleared | Strictly necessary |
lorekeeper:plot:viewMode | Remembers which view you last used on the Plot board (e.g. grid vs. corkboard). | Until cleared | Strictly necessary |
entry-section state | Remembers which wiki-entry sections you had expanded or collapsed. Keys are namespaced by entry ID. | Until cleared | Strictly necessary |
3. Why we don’t need your consent for these
Under the EU ePrivacy Directive (and the equivalent UK PECR), websites must get your consent before storing or accessing cookies on your device unless those cookies are strictly necessary to provide the service you have requested. Every cookie and storage key listed above falls into the strictly-necessary category — without them you couldn’t stay signed in, your preferences would reset every reload, and the editor wouldn’t remember where you left off. So we don’t ask you to opt in.
We show a cookie notice anyway, with both Accept and Reject options, to be transparent and to give you a real choice about acknowledging it.
4. How to manage or remove cookies
You can clear cookies and localStorage from your browser at any time using its built-in settings. Most browsers also let you block cookies entirely. Because all of our cookies are strictly necessary, blocking them will prevent you from staying signed in or using the app properly — but you are free to do so.
Direct links to the cookie-management pages for the major browsers:
5. Third-party cookies
Mythra does not embed third-party advertising, analytics, or social-media widgets, so no third party sets cookies through our site. The only cookies set on your device through Mythra come from Supabase, which acts as our data processor — see our Privacy Policy for details on our processors.
6. Changes to this policy
We may update this Cookie Policy if we add or remove cookies, or if applicable law changes. The “Last updated” date at the top of this page will always reflect the latest version.
7. Contact
If you have questions about this Cookie Policy, please contact us at hello@mythra.ink.