Verified in a flash!
Protect yourself & your customers, by securing your app with
Flash Call - the more cost efficient & faster alternative to
traditional SMS One Time Password delivery.
Your customers don’t want to jump through hoops to get verified, they want a seamless, smooth experience. Sinch Flash Calling Verification makes sign up friction a thing of the past – numbers can be verified on Android, or web application, without any user interaction at all.
Speed is of the essence! If you’re looking to verify customers quickly, which more often than not you will be, Flash Calling is the one for the job. The fastest option in the Verification family, Flash Calling gets the job done in well, a flash!
Lower your costs
Everyone’s looking for a way to save money but still get a premium service. If you need to verify customers across the globe & don’t want it to cost the earth, verify with Flash Calling, with SMS as a fallback, to save up to 70% on One Time Password costs.
Integrate & verify
Using the lightweight Sinch SDK or our REST API, you can integrate Flash Calling Verification into Android and web apps with just a few lines of code, & get verified in double quick time.
Seamless user experience
Our Android SDK will manage the complete verification action on the device, guaranteeing a great use experience.
We continously optimize for the best routes, using the real time feedback from our Reporting API, leading to the highest possible conversion rates.
Thanks to our pool of 100,000 numbers, which we draw on to make verification calls, this is equivalent to a 5 digit SMS OTP code. Plus if needed, we can add higher security!
Delivering friction free verification
Glide is the all-in-one app for live streaming video, text, and chat.
Glide wanted to offer friction-free number verification to its growing global user base - Sinch Flash Call verification proved a perfect match.
“Ever since we integrated Sinch’s Flash Call verification, we’ve seen a record increase in successful verifications across the globe.”
Ari Roisman, Co-Founder and CEO, Glide
Ensuring the highest levels of security
Truecaller, the mobile app that’s transforming the phonebook, has over 100 million users.
With 2FA key to the business, they turned to Sinch for Flash Call Technology to verify user numbers.
“Sinch has created a service that has been very helpful to our company. It’s easy to integrate, easy for our users, and provides great results.”
Alan Mamedi, CEO & Founder, Truecaller
VoIP & Verification for over 150 million users
Nimbuzz, are a popular messaging app company with over 150 million users in 200 countries worldwide.
Nimbuzz wanted to offer users the ability to make VoIP calls and verify phone numbers. They turned to Sinch for app to app calling and flash call verification.
“Because of Sinch’s expertise in VoIP, we were able to go to market with in-app calling in record time. Sinch provides a high-quality product and superior level of customer service that allows for incredibly smooth integration.”
Sharad Sharma, Sr. Product Manager, Nimbuzz
Verification in 180 countries
Badoo makes it fun to connect with new people locally to chat, date, meet up or make new friends.
Operating in 180 countries, Badoo needed a global verification solution, which they found in Sinch.