tbh android port for this game isnt officialy from game developer, that was from fanmade who want to make this game available to android device.
BUT if you want the APK file of this game maybe I can help you
Viewing post in Tentacles Thrive Beta v0.1 (NSFW) comments
here is the download link
https://www.mediafire.com/file/rf46fcdd2t466el/Tentacle+Thrives+v5.01a.apk/file