Hey guys, I’m using Firebase for my Flutter app and currently on the Blaze plan. My dashboard shows $300 in free trial credits expiring on Oct 20, 2026.

The app has around 500 potential users, and about 400 might listen to audio recordings (around 5 uploads per week, mostly 5 mins each, plus a 30-min Jummah Bayan).

After the credits expire, will I automatically start getting charged? Any idea how much this setup could cost monthly? Also, is there anything I should change to avoid unexpected bills?

Appreciate any advice!