Risks in Supabase pricing for teams migrating from Firebase and Vercel

Supabase replaces the per-operation billing of Firebase with a resource-based model. Firebase scales costs based on every database read, write, and Cloud Function invocation. This model punishes applications with high user activity. In 2026, a workload with 10,000 daily active users and 10 million daily reads costs approximately $50 to $100 on Supabase, whereas Firebase bills between $500 and $1,500. Supabase Pro costs $25 per month and includes 100,000 monthly active users and 250 GB of egress. While Firebase relies on NoSQL document hierarchies, Supabase uses Postgres to manage relational data and vector search via the pg_vector extension. The Free tier provides 500 MB of database storage and 50,000 monthly active users. This plan is intended for hobby projects and not for production workloads because it lacks uptime SLAs and automatic backups. It also pauses projects after one week of inactivity. This results in a cost ratio that is 3 to 5 times cheaper on Supabase for SaaS workloads with 10,000 plus daily active users. This makes the resource-based model much more predictable for growing teams.

Scaling beyond the Pro tier limits

Teams migrating from Vercel must account for different compute costs. Vercel charges $170.42 per month for 25 million invocations with 512 MB RAM and 150 ms duration. Supabase charges $50.00 for the same 25 million invocations with 512 MB RAM and 150 ms duration. When teams migrate from Vercel to Supabase to save money, they must monitor how exceeding 100,000 monthly active users or 8 GB of database storage triggers usage-based overages that push the monthly bill past the base price they originally budgeted. Most costs stem from overages in database size, bandwidth, and monthly active users.

Paid plans include $10 in compute credits per month to offset instance costs. A Small compute instance costs $15 per month, while a Medium instance costs $60 per month. For larger needs, a Large instance costs $110 per month with 8 GB of memory, and a 2XL instance costs $410 per month with 32 GB of memory. Users pay $0.125 per GB for database storage beyond the 8 GB limit. Egress beyond the 250 GB allowance costs $0.09 per GB. Advanced features such as Point in Time Recovery cost $100 per month for 7 days of retention. Advanced multi-factor authentication costs $75 per month for the first project. Users beyond the 100,000 monthly active user limit pay $0.00325 per user. Each additional project on a Pro or Team plan adds $10 to the monthly fee.

Migration complexity and runtime shifts

Migration from Firebase to Supabase takes 4 to 8 weeks of focused work. Developers must map Firestore collections to Postgres tables and convert security rules into Row Level Security policies. You should know that Supabase Edge Functions work best as glue logic. Teams must run both platforms in parallel for 1 to 2 weeks to validate all data. Developers must also replace SDK calls and migrate authentication data carefully. Because Supabase uses Deno for edge functions while Vercel uses Cloudflare Workers, teams may face differences in runtime compatibility.

Regarding storage, Supabase object storage costs $21.30 per month for 1 TB of storage and 250 GB of egress. Vercel charges $36.40 per month for the same 1 TB of storage and 250 GB of egress. Egress costs $0.09 per GB on Supabase, but Vercel charges $0.15 per GB. The Team plan provides SOC2 and ISO 27001 compliance. Enterprise plans allow users to bring their own cloud storage provider. How will companies manage the shift from Google’s proprietary ecosystem to an open-source Postgres environment?