Truecaller SDK enables you to verify your user's mobile number in a seamless way.
For users who have Truecaller app present on their smartphones and are already registered Truecaller users, they get verified in a 1-tap flow (supported globally), without the need of any manual input.
For users who don't have Truecaller app present on their smartphones, the SDK enables user verification by means of drop call, which is triggered to the user's number in background to complete the verification flow (currently supported only for India).