I will discuss with "the team" if we can make an APK available, say for instance, every week. Many people are asking for it, and we feel proud and a bit humbled. I will post here if that's possible and where it can be found of course. In due time we will try to make it available on Google play.
If you're not afraid of running and using both Android Studio and github, you can download the sources yourself (and possibly contribute), though I really understand that is a bridge too far for many.
As for the dongles, it is a very complicated matter. Let me try to summarize:
- Dongles based on true ELM chips should, in principle, work;
- If they don't, we know they should and we should make the App compatible. I'd be happy to incorporate needed changes, if someone would donate or borrow me one for a while;
- Same goes for ST1110 based dongles;
- It is close to impossible to know which dongles do use true ELMs or ST1110s, as the chip manufacturers don't tell, and the dongle manufacturers usually lie;
- Almost all the knockoff's from eBay do not work. I have tried several myself. They have a reduced command set and it is impossible to read Zoe or Fluence ZE data. Reason is they build the logic into the "spare room" of the BlueTooth microcontroller;
- There are knockoffs that work, but it's all unbranded stuff so you can buy one that works from a seller, test it, be happy, buy 10 more from the same seller and they don't. It is just not worth the effort.
- The Konnwei KW902 ones do work (until those are re-manufactured too of course) and that is why for the time being, it is the only one that I can recommend. They should cost under 20 Euros;
- If you already have a dongle and you're in doubt, I have a few tests that could be used. You just need an android phone and something like "Bluetooth terminal".
Hope this helps.