I always refuse to pay for apps. In the era of competition, where you want an app to serve a particular purpose, there is no doubt that you will find a free version of the same in the Play Store somewhere. Though, you will so many, but I always learn to ignore them.
I usually do either a google search or play store search for free version of a particular app. Then check out few reviews to find whether it’s worth it for a minute download. If it’s doesn’t work, after I open it. I just simply delete it from my phone and try the next suggestion. It’s really not that much difficult but it saves a lot of time.