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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