There is no online account tied to the Eidoo wallet. Users access the wallet through the seed (12-word passphrase) that is generated by the device in use when the wallet is first opened.
Eidoo is a non-custodial wallet. In order to avoid any kind of cyber attack, Eidoo is not in possession of any of its customers' Seed, furthermore there is no server where this information is saved.
The password is set to lock the application on the device and to confirm important actions, such as backups, transactions and swaps.
The password does not allow you to recover the wallet in case you have access issues. Remember to save the seed in a safe, offline place and don't share it with anyone. If you're not sure if you have the 12 words passphrase needed to access your wallet, use this backup tutorial.