Is it possible to create something like Parallel Space by oneself? There a well described to procedure how to clone an app
- How to keep two versions of an app installed?
- How to Install and Run Two Different Versions of Same App on Android?
how to integrate auto-update
and how to download the apk
- How can I download an APK file from Google Play store on my laptop? - Quora
- How To Download an APK From the Google Play Store
The idea is to combine those by
- by using a web scraper or automate the firefox add-on in order to place the newest version somewhere reachable
- add the auto-update line of codes
- install it on the phone via ADB or a dedicated app
Do you think that is feasible?