Registrations open for Early Access of Truecaller Full Stack SDK

Truecaller SDK for
mobile apps

Verify user mobile numbers without
sending an SMS/drop-call.

Get Started

How it works

User clicks on
a defined CTA (button)
User clicks CONTINUE to proceed with
Truecaller-verified mobile number & profile
User successfully verified without OTP,
and logged-in/ signed-up


Reduce drop-offs
while onboarding

Complete verification in seconds

Same user across
all your apps

One user, one verification

Genuine user
details auto-filled

Trusted Truecaller mobile identities

Your app
Your UI

Quick to Integrate with just a few lines of code

Don't lose focus
from your business

Uses Truecaller’s world-class verification infrastructure

Simple REST

Quick to Integrate with just a few lines of code
India’s leading one-stop home service destination that gives users easy access to first- rate professionals across varied services on-demand.
"Our users while signing up on Housejoy app, now have a frictionless and one step registration with their Truecaller verified phone number. We are seeing a good chunk of our daily registrations coming via Truecaller and has significantly contributed to grow our conversion rates.”
Krishna Gadi - VP Product & Growth,
of all users onboarded via Truecaller
increase in successful user signups
Get Started