Mobile Strike is awful about this. I have strong feelings about that game in particular because I rarely play games, but this particular one got me to try it (probably due to a massive marketing campaign) and then I ended up spending far more money and time on it than probably all other mobile games I've ever played combined. After all that I realized I didn't even enjoy it, and soon they came out with new upgrades, which was enough to make me realize I should never play it again and consider the time and money already spent as a learning experience.

Now I stick to puzzle games that provide a large amount of enjoyment relative to the cost. The Room series is phenomenal.