You're right! It's been a while since our last discount. We should absolutely have another one, right now.
If you chose Patreon subscription to play the game instead of buying the game on Itch-io, when your subscription is unactive, you will be unable to play the game.
However, your synced data (save data you uploaded to the Cloud) will be preserved. So even if you decided to take a break from the game, then delete it, then lost your phone, or deleted everything,...etc - you'll be able to jump right back to where you left whenever your subscription is active again~!