ExpensO - The Expense Organiser stores your data on your device and has no server-side account. There is nothing for the developer to delete on your behalf, because the developer holds none of your data. You delete everything yourself, in seconds.
This wipes every transaction, budget, savings goal, recurring rule, attachment, and setting, deletes this device's local sync log, and destroys the encryption keys in the secure hardware. It cannot be undone.
Uninstall ExpensO - The Expense Organiser from your device. On Android this also removes the app's private, encrypted storage.
The encrypted sync files live in your own Google Drive, in a private application-data folder.
Peer-to-peer sync writes only to your other devices. Repeat steps 1–2 on each device to erase its copy.
ExpensO - The Expense Organiser has no analytics store, no backups, no logs, and no third-party processors holding your data. After steps 1–4 no copy of your ExpensO - The Expense Organiser data remains anywhere.