WhatsApp won't install via playstore or as an APK... [insufficient space] My partner just received a new android phone.  It looks nice, but Whatsapp won't install.  It gives an "insufficient memory" error.  I've tried to clear the cache, install it from an APK, all with the same result.

The internal memory reports that there is 1.5GB free.  

I've already reset this phone several times. It is running android version 4.4.2 and the software is up-to-date according to the manufacturer.

Any other suggestions or tips on how to get it working?

Many applications install without a problem, there just seems to be a problem with YouTube updating and Whatsapp installing.
Installed a 32GB microsd card into the phone and set it as the default install location for apps.  All programs updated and downloaded successfully.