I’d like to echo the need to have some sort of usage stats for a deployed app. This is becoming more critical for me as a way to demonstrate the impact of a project for my job. I did see some fairly cryptic workarounds to get a basic count of hits in the message boards, but it is too far beyond my abilities.
Incorporating stats to the share.streamlit.io page seems to be a natural place for this. Number of hits by day and geo location would be the most important things to log from my perspective.