I don't know for mobile apps. But on web applications proud of the name, each user session automatically saves main, pertinent user preferences for next user sessions.
This is already done on windy.com for several settings (measure units, palettes, etc.).
But obviously more and more users (mainly Premium), would like much more preferences to be saved, as far as this is technically doable.
There are already many threads here where users ask to be able to retrieve same map coverage, zoom level, data layers, etc.