WhatsApp Messenger is free to download for iOS and Android users. In the past, the app cost 99 cents, but the developers moved to a newer pricing model in the middle of 2013.

Where to download WhatsApp Messenger. ... But you're not limited to an Android phone or iPhone to use WhatsApp — the company also makes a version for Mac and Windows PCs.

If you are interested in giving this feature a try, you can enroll in the beta program by heading this way, or simply download and install an apk of beta version 2.20.163 of WhatsApp for Android ...

Meta is enabling interoperability for WhatsApp and Messenger. The two messaging platforms will be able to work with third-party messaging apps, provided they meet Meta’s security requirements.