EffectivePhone verification prevents bulk account creation and eradicates spam more effectively than captchas or social logins.
Better user experienceMinimises personal information sharing (compared to using social network registrations) and enables a nearly frictionless registration experience for mobile users.
GlobalEvery user with a phone has a unique identifier, enabling you to grow the audience for your application with confidence.
How spam and botnet prevention works
1. The user enters their phone numberAs part of the registration process, the app asks the user to enter his/her number.
2. Vonage APIs Verify sends a code
Verify sends a text message containing an authentication code to that number. If the user is on a landline, Vonage APIs automatically make a phone call and delivers the code via text-to-speech.