I’m not on Android so can’t say sorry, but the game just released and as far as I know it’s only premium with no free versions.
Actually if you’re on Android and have PlayPass, it’s on there, including all the IAPs. Finding my Samsung tablet more useful lately.
I finally got around to emailing the devs. I wrote to the devs about how I wanted on option to disable swipe pathing for towers because they conflict with hero swipe pathing. I often swipe to move heroes and end up completely moving tower defenders out of position. I rarely move tower defenders so I don't need their swipe mechanic. It's mainly the heroes running all over the map. But that feature has been the most frustrating to me since heroes and tower defenders often overlap on the map constantly. I can tap on the hero portrait but that loses the convenience of the quick swiping. I also asked for stat tracking since we've gotten so many games and none have stat tracking like: time spent, enemies killed, hero deaths, skills used, etc. It would be good to incentivize playing the game more even after you've beaten the game. I got an email response back today thanking me for my feedback and they can't respond to everyone etc. So typical canned response. Sadly, I'm pretty sure this means they're not open to suggestions or improvements.
No this doesn't mean that they're not open to suggestions. It only means that they have a ton of feature requests from many people and they'll compile it up and see what things can finally be included in the game.