Phone call happens after Fajr ends
Response from developer
Salaam, sorry that you had a poor experience. We had faced an unexpectedly large number of signups from unverified accounts and we had to perform a clean up for accounts which were not verified. We've now migrated from the use of phone numbers to emails and you should be able to sign up again. Apologies for the issues you had faced, we hope you can try our app again 😁