Gmail/Authenticator

Get the official Gmail app for your iPhone or iPad. The newly redesigned app brings the best of Gmail with real-time notifications, multiple account support and search across your entire inbox. With the Gmail app, you can:Switch between up to 5 accounts.

By Google Inc

Update: Jan 21, 2016
115,619 ratings
iOS 7.1 or later

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Google Authenticator works with 2-Step Verification for your Google Account to provide an additional layer of security when signing in.

By Google Inc

Update: Feb 22, 2016
1,538 ratings
iOS 7.0 or later

WhatsApp Messenger

WhatsApp Messenger is a FREE messaging app available for iPhone and other smartphones. WhatsApp uses your phone’s Internet connection (4G/3G/2G/EDGE or Wi-Fi, as available) to let you message and call friends and family. Switch from SMS to WhatsApp to send and receive messages, calls, photos, videos, and Voice Messages.

By WhatsApp Inc

Update: Jul 25, 2016
175,082 ratings
iOS 6.0 or later

YouTube

Get the official YouTube app for iPhone, iPad and Apple TV.See what the world is watching in music, gaming, entertainment, news and more. Explore the hottest videos on YouTube with the new trending tab. Subscribe to channels, share with friends, edit and upload videos, and watch on.

By Google Inc

Update: Jul 25, 2016
229,884 ratings
iOS 8.0 or later