The upcoming NostraNet screen time feature not only offers a thorough analysis of the Nostr apps you use the most in NostrNet but also evaluates each app's performance. 

These metrics will assist you in making more informed decisions about which app to use, and they will also help us personalize your experience.
https://image.nostr.build/8d31a52c39adf488721707c0c5ec0eaad3c65250b4207d6c1d5caa0f648a2374.jpg#m=image%2Fjpeg&dim=1080x783&blurhash=%2314o4n%3Fv9u8%5EmkMwInah%24flBxv%3DzM%5E9sRO%23%2CoMI.UwD%25Te-%3A%3FGkVJ*kDnhFzIB%23p%251kpxtxGozNF%3FcxuIVITjEs%3AkCkCjF%3Dx%25gS%23IUM%7BRjWVV%40oMJ5ax-VtRIpM%7BixjYX9&x=177cc66ee82bfb0e2b96810b533076ef378fd389aec020b04fab34469282f04c 

 Btw no server involved, all the processing happens locally.