WhatsApp (dna Research & Archives)
The update for iPhone users adds a cloud storage integration for a variety of services.
WhatsApp has released an update for iOS that adds new file sharing and video features, with cloud storage integration.
The new version 2.12.14 allows you to share photos or videos from other apps on your smartphone, like Google Drive Dropbox or Microsoft OneDrive. Simply open "Photo Video Library" and tap the "Choose from another app" option. However, the feature is limited to only photo and video content; any spreadsheets or Word documents in your cloud storage are still unsupported by WhatsApp. In addition, there's also an updated photo and video browser, letting you pinch to zoom even videos as you watch them, and a variety of solid colour chat backgrounds.
You can find the latest version on iTunes here, though Android users will have to wait for an update.