less restrictive free tier

Ok lets be honest having a free tier is awsome and amount that can be accessed is absolutely great but i do think that having 20 for a single day is restrictive and i think it would be better to have a monthly ratelimit not a daily one.
a bit of math 20 messages per day === anywhere between 560 and 620 messages every month. but on other hand i do think a monthly cap of idk 400-500 messages might actually suit someone better even tho overall you have less messages per month if like me you cant pay at this time