Constante
This only applies if you signed in (with Google or with an email code). If you use Constante in guest mode, you have no account to delete — your data already lives only on your phone.
This deletes your account and your cloud backup immediately and permanently, and signs you out. If you keep the phone's data, the app keeps working in guest mode with your local information intact; if you delete it, your tasks, goals, habits, expenses, income, routines and categories on that phone are deleted too.
If you can't get into the app, send an email to soporte.constante23@gmail.com with the subject "Delete account", from the same email address you registered with in Constante. We'll confirm your identity with that email and process the deletion within 30 days, and let you know once it's done.
The data stored on the phone (local database) is independent from the server: it's only deleted if you choose so in the last step, and only on the phone you delete the account from. If you used Constante on other phones, or requested deletion by email, that local data stays there until you uninstall the app or clear its data from Android (Settings → Apps → Constante → Storage → Clear data). Your Google session on the phone isn't signed out either: it just stops being linked to Constante.
Once the account is deleted, there's no way to recover the cloud backup. If you change your mind, you'd need to create a new account from scratch.