Chrona has no accounts or server of its own — there's no "Chrona account" to delete. What does exist is the optional access you may have granted to your Google account, and the preferences saved on your device. This page gathers, in one place, how to remove each of those permissions. For the full detail of what data the app processes, see the privacy policy.
If you connected your Google account to use the Agenda face, there are two ways to remove that access — either one is enough, and they're independent of whether you still have the app installed:
Open Chrona → Settings → "Google Calendar" section → tap "Disconnect". This deletes the token saved on your device immediately.
This route is the authoritative one: it works even if you already uninstalled the app or don't have the device on hand, and it's Google, not Chrona, that confirms the access has been revoked.
Open my Google account's permissionsLook for "Chrona" in the list and tap "Remove access".
The theme, the active face, the language and the rest of your settings are saved only on your device. Uninstalling Chrona removes all of them, leaving no trace on any server — because there is none.
Face, theme and widget unlocks are purchases managed by Google Play or the App Store, tied to your account on that store — Chrona doesn't store them and can't "delete" them on its own. If you want to manage, refund or check the history of those purchases, do it directly from Google Play or from the App Store's subscription settings, depending on where you bought it.
If you still have questions about your data after this, or need something this page doesn't cover, write to us at contact@mreysei.dev.