If you are not able to get into the apps please try these steps in order.
Use the magic link to request a new link to log into the app. It may request an email first.
Open the app using the magic link sent by sms.
Copy and paste the OTP code also sent by sms. This step is only the first time you log into the app on a new device.
You should be logged in and will be asked for a passcode / biometric to enter the app.
If any stage is unclear or does not work properly please get in touch via the support chat in the bottom right side of this page or by emailing firstname.lastname@example.org.