Credit-based billing makes active development costs unpredictable
Lovable uses a credit system where each AI edit consumes credits. Users actively developing an app describe burning through a month's credit allocation within a few days of intensive use. The relationship between credits and cost isn't intuitive from the pricing page.
"Signed up for $20/month thinking that was the cost. Used up my credits in three days trying to build one feature. That's not a month's plan — that's a few evenings."