Database & Backend Platform · decision tool
Migrate off Convex — worth it, in months
Your Convex bill at real usage vs the best alternative, with your migration hours priced in. Sometimes the math says stay — it decides, not a blog post.
Prices verified 2026-07-15 against official pricing pages · fit weights are our estimates (see methodology) · share the URL to share your configuration
Your situation
Usage drives both bills; effort drives the breakeven.
Migration verdict
Probably stay — payback over a year out
Saving $5.58/mo against ~$1,600.00 of migration effort takes 287 months to break even.
You today
- No SQL: data access is TypeScript functions on a document store — migrating away means rewriting the data layer
- Younger ecosystem than Postgres; fewer ops tools and hires who know it
Best alternative
- Free-tier projects pause after 1 week of inactivity
- Bundled platform: leaving means replacing auth/realtime/storage too, not just the database
The math, line by line
Bills computed by the same engine and verified data as the database selector; switching-cost inputs are yours to set — we only default them.
At a glance
| Tool | Free tier | Paid entry | Verified |
|---|---|---|---|
| Supabase | 500MB database, 50K MAU, 1GB file storage, 5GB egress, 2 projects | Pro plan $25/mo | 2026-07-15 |
| Neon | 0.5GB storage + 100 compute-hours per project, 5GB egress, 60K auth MAU | Pay-as-you-go — Compute billed per CU-hour ($0.106); suspended compute costs $0; storage $0.35/GB-month | 2026-07-15 |
| Firebase (Firestore) | 1GiB Firestore, 50K reads / 20K writes / 20K deletes per day, 50K auth MAU, 10GiB egress | Pay-as-you-go — Firestore nam5 rates: $0.06/100K reads, $0.18/100K writes, $0.18/GiB storage; deletes ($0.02/100K) not modeled. Ops derived from your per-user activity input (80/20 read/write split, our estimate) | 2026-07-15 |
| Convex | 1M function calls, 0.5GB database, 1GB file storage, 1GB egress | Professional $25/mo | 2026-07-15 |
| Turso | 100 databases, 5GB storage, 500M rows read / 10M rows written per month | Developer plan $4.99/mo | 2026-07-15 |
| PlanetScale | No free tier | PS-5 HA cluster $15/mo | 2026-07-15 |
| MongoDB Atlas | 512MB storage, shared CPU/RAM, ~100 ops/sec cap | Flex tier $8/mo | 2026-07-15 |
Data sources
| Tool | Source | Verified |
|---|---|---|
| Supabase | Supabase pricing page | 2026-07-15 |
| Neon | Neon pricing page | 2026-07-15 |
| Firebase (Firestore) | Firebase pricing page | 2026-07-15 |
| Convex | Convex pricing page | 2026-07-15 |
| Turso | Turso pricing page | 2026-07-15 |
| PlanetScale | PlanetScale pricing page | 2026-07-15 |
| MongoDB Atlas | MongoDB Atlas pricing page | 2026-07-15 |
A monitor re-checks these pages for changes; when a vendor moves a price, the date updates and every verdict recomputes.