Ahh I had assumed the demo might have been kept relatively updated along with the main version. As the description of it is limited play, and locked out save/load function.
It'd be nice to see the demo updated if possible.
I generally like to avoid having to go through refund process's if possible. Which is why i like when Indie games actually have demo's. As it's a good way for me to test if my computer (or in this case phone) will run the game smoothly.
Steam refund process is a little more user friendly than itch imo.
on steam if i'm wary on if something will run or not and there is no demo, i wait for a good sale at least, and then go for it. if it runs smooth, then great. If not refund process is simple and direct.
Here on itch I'd rather be completely sure something is going to run well on my device before buying. Even at extremely low prices.
Realistically though I'd be more likely to put in my support on patreon given the sort of direction of content I get the impression you are working towards. But I also could be misinterpreting your intentions.
*Note* Hopefully none of this comes off as judgmental. I tend to be overly descriptive as to my reasoning for things, and it can seem that way to people at times.