Currently attribution of OSM data is effectively missing. It is present deeply hidden in settings, but it is effectively invisible.

To get it one needs to extended menu, settings menu, scroll down, "About MAPS.ME", scroll down, select "Copyright".

At the same time "MAPS.ME" credit text is always displayed in a bottom right corner of the map.

Proper attribution is present on the map, but only for about a second immediately after loading.

Interface is quite busy already, but at least on my phone load screen is present for about 6 seconds it is almost completely empty (first 2 seconds of a blank screen, later Maps.me logo, and "MAPS.ME" text). What about putting something like "powered by OpenStreetMap data" there as the first step?

I am using 9.1.8-Google, on Xiaomi Redmi 4, Android 6.0.1 MMB29M