I just received the bill this month (30 days) for my app’s operational costs, running at:
💰 $19.5K/month
👥 250k total users
📈 70K monthly active users
Breakdown:
- Supabase: $113
- Supabase auth: $0 (free first 100k MAU)
- Railway server: $78
- OpenAI API: $472 (Both LLM and Vision)
- Speech-to-text API: ~$365 (1,1m mins)
- RevenueCat: $131
- Claude API & Llama: $87
- Text-to-speech API: $89
Total: ~$1335 (not include the 15% fees from the App Store and Google Play and 5% from Lemon Squeezy)
I used to think cutting costs was the answer.
Turns out, doubling down on marketing worked better.
Build and grow first worry about costs later.
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