EffectivePhone verification prevents bulk account creation and eradicates spam more effectively than captchas or social logins.
Better user experienceMinimizes 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 his/her 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.