If you have forgotten your pin, unfortunately you will need to reset the app and start again with the setup process. Rest assured none of your data will have been lost, but you will need to re-setup your accounts in the app. While we understand this is an inconvenience and will take a few minutes to resolve, we believe this is a better option than allowing the code to be reset on the device which would potentially open up access to your Stripe account by someone who may have stolen your phone.
To keep things simple, we recommend using fingerprint authentication to access the app, that way you don’t have to worry about remembering another PIN code.