I use Memmy daily and I was checking if Memmy is still under development. Unfortunately I couldn’t find the respective community. The app is well-designed that I doubt it was never updated since month.
Seems like it has been two months since any new builds on TestFlight. There are quite a few usabilities issues in the app, such as search not working. I ended up switching to Voyager, which is much more usable, but I liked the Memmy UI better.