Supabase vs Convex
Side-by-side database cost comparison — enter your storage and compute workload and see which provider is cheaper.
Database pricing is highly variable. Costs depend on query patterns, IOPS, connection pooling, and plan-specific limits this calculator cannot fully model. Treat these as order-of-magnitude estimates.
1. Pick a workload
Choose the preset closest to your database size.
2. Fine-tune (optional)
Override the preset with your real numbers.
Convex is cheaper by $6.50/mo (16%) for this workload.
SupabasePro
$41.50/mo
Pro plan base
Includes Auth, Storage, Edge Functions, Realtime + DB — $10 compute credit included
$25.00
Compute — Small (2 GB RAM)
Small $15/mo − $10 credit = $5 extra
$5.00
Database storage
92.0 GB overage × $0.125/GB (8 GB included)
$11.50
Egress
30 GB — within 250 GB included
incl.
Compute: Small (2 GB RAM, 2-core ARM). Selected as nearest tier for 2 GB RAM target. Price includes Auth, Storage, Edge Functions, Realtime — not just the database. Compare with pure-DB providers at lower storage tiers with this in mind.
Rates verified 2026-05 — Supabase pricing page
ConvexProfessional
Lower cost
$35.00/mo
Developer seats (1)
1 developer × $25/dev/mo
$25.00
Database storage
50.0 GB overage × $0.2/GB (50 GB included)
$10.00
DB I/O (est.)
~36.0 GB est. I/O — within 50 GB included
incl.
Egress
30 GB — within 50 GB included
incl.
Per-seat pricing model: cost grows with team size, not data volume. Compare carefully against storage-based providers for larger teams.
Per-seat pricing: 1 developer × $25/mo = $25/mo base. DB I/O estimate (~0.05 GB/active hour) is a rough approximation — actual usage depends heavily on query patterns. Function call costs ($2/million) not included — too app-specific to model. Professional includes very high limits. Convex uses a document model, not Postgres. Direct SQL tools and ORMs are not compatible.
Rates verified 2026-05 — Convex pricing page
What Supabase excels at
- Full BaaS bundle: Auth, Storage, Edge Functions, and Realtime are included in the Pro price — not just the database.
- Native MakerKit support: MakerKit ships with first-class Supabase integration out of the box.
- Postgres with Row Level Security: fine-grained per-row access control at the database level.
- Dashboard and Studio: visual table editor, SQL editor, and migration tooling built in.
- Generous free tier: 500 MB DB, 50,000 MAU, 5 GB egress — no credit card required.
What Convex excels at
- Reactive queries: Convex functions subscribe to data — UI updates automatically when data changes without polling.
- TypeScript-native: fully typed queries, mutations, and actions — no SQL or ORM required.
- Built-in scheduling and cron: run background jobs and recurring tasks without a separate queue.
- Transactional mutations: all writes are fully ACID at the function level.
- Real-time by default: WebSocket subscriptions are a first-class primitive, not an add-on.
Native integration
Building on Supabase or Convex?
MakerKit ships pre-configured for Supabase — auth, RLS, storage, and migrations all done. Prefer Convex? Standard Postgres means it's a one connection-string swap.
Get MakerkitOne-time $349 — yours forever
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