I had version 9 installed (File name: rtf.exe-9-universal-release.apk) and updated to 9.5. but once it was installed I couldn't play beyond v9. I reinstalled v9 and then v9.5 but nothing happened. Last sentence: "Well... I've been having these dreams lately..." After that my game transitioned to the "to be continued" screen.
I hope my poorly explanation helps
Edit: It did update but erased my save files :(
Edit V2: okay I can play 9.5...my phone decided to install RtF a second time on my phone, and since I have all my VN's saved in a folder I didn't saw the second version. So luckily not your fault or the games fault...my phone just being special