How to sign in
You'll need a username and password to sign into the My O2 app.
If you've used My O2 on our website, the same username and password will also get you into the app.
If you've forgotten your password, or need to register, go to our My O2 sign in page.
When you sign in to the app the first time, you'll be asked to set up a memorable PIN to use in future. That'll make it quick and easier to sign in next time.
For help and support downloading and signing in to the My O2 app visit our help pages.