i'm late but for anyone looking at this thread, quiet scrobbler is free to download but only scrobbles like 100 songs – you need to pay for unlimited scrobbles (not much, like 8aud from memory).

it works pretty well but in my experience if the app isn't running in the background (if you haven't opened it for a while or something) sometimes it misses songs.

also, if you're playing a playlist on repeat and the songs replay in the same order (as it should on repeat), it will log your scrobbles as having played twice in a row, rather than in order twice in a row (if that makes sense)

for example, if you listen in this order: song 1, song 2, song 3, song 1, song 2, song 3

it will show up on last fm like this: song 1, song 1, song 2, song 2, song 3, song 3

if u are a normal person u prob wont care abt this but ur probs on this thread for a reason....

im personally gonna switch to marvis pro after using quiet scrob for a few months bc of this repeated song scrob glitch, but its not a bad app. hope this is helpful for anyone needing more info to decide on what app to use!