I have some issues as well. I've tried downloading the android APK but every time it's a corrupted or failed file download. I narrowed it down to some issues on my part, one being I have a Samsung that hasn't been updated in a year. It might also be that the package installment has more megabytes on android idk.
Some devices seem to have this problem. I found a solution that will fix it and will deploy it in the next small update. So far uninstalling the old version is the only way. (You will lose your old saves though)
