Truecaller User Identity & Verification SDK enables mobile developers to onboard more verified users by providing a 1-tap experience on their mobile apps. Top apps like OYO, Grofers, Quikr, redbus, 1mg, BankBazaar, Tapzo are using TrueSDK to increase successful signups on their mobile platform, witnessing a user growth of more than 25%

Truecaller SDK is easy to integrate, ultra light-weight and forever free. 

Learn more at https://developer.truecaller.com/