
Description: GetOTP is a free and open source two-factor authentication app for Android, iOS, Windows Phone, Blackberry, and Linux. It can generate time-based one-time passwords compatible with Google Authenticator and similar apps. It's lightweight, easy to use, and doesn't require an account.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Nexmo is a cloud communications platform that enables developers to integrate messaging, voice and phone capabilities into mobile apps, websites and business systems using APIs. It supports SMS, voice calls, phone number provisioning, 2-factor authentication and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API