Headmaster struggled too, but dropped size limit by moving to Joiplay.
Viewing post in Surgery Needed - Future Plans comments
I think you just
1. install Joiplay (and renpy plugin) on the android device (like 30+40 MB),
2. download and unpack Windows version,
3. create shortcut using the exe file, launch and play
I used it and it worked on Headmaster and some other games. They boast 90% compatibility for renpy. But Play Market version is very old and bugged, there is a new version 1.20 on patreon and site.
APK would prefer owners of some older devices with smaller memory capacity - for example, HM weight over 6 gigs! So there is always some demand for compressed versions, heh. Overall, positive experience, no crashes experienced, saves are easily accessible.
https://patreon.com/joiplay and there listed https://joiplay.cyou as well
There is also discord with step-by-step guide, and explanation Google keeps rejecting market updates for weird reason like "you requested files access: we don't think it needed for your app" xD
Btw, joiplay does launch your game just fine as is.
Also, consider moving to webp from png. I am not a designer myself, but it is a hype nowadays, offering either better compression or quality, and both lossy and lossless options. And Renpy should support it, like, since 2016. But some people complain, on high compression it loses sharpness giving as they say "plastic look", instead of familiar blocky noise of old jpg-like algorithms.