“Firebase costs us about $700 a month all the business text messages we send is about $2,500 a month we use Revenue Cat for subscriptions in the iOS app that's 1% of revenue Apple Search Ads currently we're spending about $500 a month... we're spending about $200 a month on Claude Code we use Chat GPT for email content and that's about $20 a month.”

Run A $500K ARR Restaurant SaaS On Roughly $4K Of Monthly Fixed Costs

Weightley does over $500K ARR with a stack that totals roughly $3.5-4K/month in fixed costs plus revenue-share fees (RevenueCat 1%, Stripe 3%). The biggest line is SMS at $2,500/month — directly tied to product value — while everything else (project management, support, surveys) costs $20-40/month each. Solo founder margins compound on this stack.