Dev, if you're still checking this space, I want to apologize for before. I usually try to offer constructive criticism, and I think I came off too sharply. While I am not a developer, I think I sort of understand the challenge and frustration of deciding cost in a landscape of free games using obtrusive ads.
All that being said, I was looking in my heavily curated list of Purchased apps (I hide things like a madman), and I saw Folt yesterday. I decided I missed it and didn't care about the paywall anymore. I was pleasantly surprised to see the updates you've made, and I am enjoying it as much if not more than my first time through. I haven't yet, but I will be fully unlocking Endless Mode. Thanks for making a great game!