Android: Mega-popular messenger app WhatsApp has had its own beta program for a while. Now, however, it's much easier to join. Simply enrol in the Play Store beta and you'll always have the latest release. As Android Police points out, up until this point WhatsApp has released any of its beta versions directly through its own site with APK downloads. The new program instead uses Google's official beta distribution, which means you simply need to hit the source link below and click the big blue "Become a Tester" button. Every time you download a new version of WhatsApp from the Play Store after that, you'll be in the beta program!