Recently I’ve tried to use Google Play to install some apps - as I use the phone for calls only, it was a whole new experience for me. I was surprised that most authors call their software “free” while in fact it is a free trial of a commercial software. Most trial periods are extremely short, like 3 or 6 days (why so urgent?). They also constantly trying to take money using so called “in app purchases”, making the free" software not free at all. It was a surprise for me when I set a filter to show paid apps only, I didn’t see “full” versions of those trials - the pure commercial software is not listed in the paid apps category.
Is it how they do business in mobile software world? Trying to trick customers to install their software by calling it “free”, and I as a customer have to dig through all this cr*p to find anything useful, researching each app and trying to find what’s the catch?