Apps/Mobile SDK

End-user flow

Three screens built with the SDK: number entry, code entry, verified. Tap the phone to advance.

09:41KolayOTP

Your phone number

Enter the number we should send the verification code to.

+90 555 123 45 67

The code arrives on WhatsApp, falling back to SMS.

Push permissionRequested before the code screen

Quiet hoursNot applied — OTP is transactional

Code visibilityCan be hidden on the lock screen

LocalizationTR/EN from the locale field

Send your first OTP in five minutes.

No credit card. Start on a sandbox key and switch to live when you're ready.