Since Coinosh is a decentralised wallet, it doesn't hold or control your data or funds, which means there isn't a traditional crypto account to delete.

However, if you want to remove Coinosh from your device, you can simply delete the app.

Please remember, once you delete the app, all data associated with it on your device will be removed. Make sure you have safely stored your 12-word recovery phrase before deleting the app, as it's the only way to access your funds if you decide to reinstall in the future.