Supabase vs PlanetScale
A comparison of Supabase and PlanetScale built from values read directly from each provider's own documentation, with the source recorded against every figure.
The short answer
- Pick Supabase if
- Teams who want Postgres plus auth, storage and generated APIs from one vendor on a fixed monthly bill, and who would otherwise assemble those pieces themselves.
- Pick PlanetScale if
- Production workloads that want replicas across availability zones as the default shape rather than an upgrade, and teams who need MySQL-compatible sharding that the Postgres-only services do not offer.
4 sourced criteria separate them:
- Entry paid plan
- Supabase: $25/month for the Pro plan, including the first project and $10/mo of compute credits; additional projects from $10/mo
- PlanetScale: $5/month for a single-node Postgres database on network-attached storage; PlanetScale Metal with local NVMe starts at $50/month
- Pricing model
- Supabase: Fixed monthly plan per organisation plus per-project compute, billed hourly by instance size
- PlanetScale: Priced by node size and storage rather than usage, with high-availability clusters sold as a primary plus two replicas
- Storage (entry plan)
- Supabase: 8 GB disk per project on the Pro plan; 500 MB on Free
- PlanetScale: First 10 GB free on network-attached storage, then per-GB pricing; storage is included for Metal databases
- Engine
- Supabase: PostgreSQL
- PlanetScale: PostgreSQL, and MySQL-compatible Vitess clusters with horizontal sharding
At a glance.
| Criterion | Supabase | PlanetScale |
|---|---|---|
| Pricing | ||
| Entry paid plan | $25/month for the Pro plan, including the first project and $10/mo of compute credits; additional projects from $10/mo | $5/month for a single-node Postgres database on network-attached storage; PlanetScale Metal with local NVMe starts at $50/month |
| Pricing model | Fixed monthly plan per organisation plus per-project compute, billed hourly by instance size | Priced by node size and storage rather than usage, with high-availability clusters sold as a primary plus two replicas |
| Limits | ||
| Storage (entry plan) | 8 GB disk per project on the Pro plan; 500 MB on Free | First 10 GB free on network-attached storage, then per-GB pricing; storage is included for Metal databases |
| Data | ||
| Engine | PostgreSQL | PostgreSQL, and MySQL-compatible Vitess clusters with horizontal sharding |
| Database branching | Supported | Supported |
Where they differ.
Entry paid plan
- Supabase
- $25/month for the Pro plan, including the first project and $10/mo of compute credits; additional projects from $10/mo
- PlanetScale
- $5/month for a single-node Postgres database on network-attached storage; PlanetScale Metal with local NVMe starts at $50/month
Sources (2) →Sources ↓
- Pricing & Fees — Supabase ↗
“$25/month [...] First project included. Additional projects from $10/mo. [...] Paid plans include $10/mo in compute credits, enough to cover one Micro instance.”
Read 2026-09-05 · official pricing
- Pricing — PlanetScale ↗
“PlanetScale Postgres [...] Single node — Starting at $5/month for development and low-traffic workloads Metal — Starting at $50/month with local NVMe storage for high-performance needs High Availability — 1 primary + 2 replicas across 3 availability zones”
Read 2026-09-05 · official pricing
Pricing model
- Supabase
- Fixed monthly plan per organisation plus per-project compute, billed hourly by instance size
- PlanetScale
- Priced by node size and storage rather than usage, with high-availability clusters sold as a primary plus two replicas
Sources (2) →Sources ↓
- Pricing & Fees — Supabase ↗
“First project included. Additional projects from $10/mo. [...] Paid plans include $10/mo in compute credits, enough to cover one Micro instance.”
Read 2026-09-05 · official pricing
- Pricing — PlanetScale ↗
“A primary and two included replica nodes ideal for high-availability workloads. 99.99% SLA.”
Read 2026-09-05 · official pricing
Storage (entry plan)
- Supabase
- 8 GB disk per project on the Pro plan; 500 MB on Free
- PlanetScale
- First 10 GB free on network-attached storage, then per-GB pricing; storage is included for Metal databases
Sources (2) →Sources ↓
- Pricing & Fees — Supabase ↗
“8 GB disk size per project”
Read 2026-09-05 · official pricing
- Pricing — PlanetScale ↗
“Storage amount — Included for Metal databases. For network-attached storage databases, the first 10 GB is free, with per-GB pricing beyond that.”
Read 2026-09-05 · official pricing
Engine
- Supabase
- PostgreSQL
- PlanetScale
- PostgreSQL, and MySQL-compatible Vitess clusters with horizontal sharding
Sources (2) →Sources ↓
- Connect to your database — Supabase Docs ↗
“The session mode connection string connects to your Postgres instance via the Shared Pooler (Supavisor).”
Read 2026-09-05 · official docs
- Pricing — PlanetScale ↗
“MySQL-compatible with horizontal sharding for massive scale. Runs on network-attached storage or PlanetScale Metal.”
Read 2026-09-05 · official site
Which should you choose?
Choose Supabase if…
Teams who want Postgres plus auth, storage and generated APIs from one vendor on a fixed monthly bill, and who would otherwise assemble those pieces themselves.
Editorial · Palash Bagchi · approved
Choose PlanetScale if…
Production workloads that want replicas across availability zones as the default shape rather than an upgrade, and teams who need MySQL-compatible sharding that the Postgres-only services do not offer.
Editorial · Palash Bagchi · approved
Consider something else if…
- Supabase: You want only a database. Much of the $25 covers a platform you may not use, and free projects are paused after a week of inactivity, which is not the same as scaling to zero.
- PlanetScale: You are prototyping. Pricing starts at a node rather than at zero, and there is no free tier documented on the pricing page.
Documented by only one.
These criteria are published by one provider and not the other. An absence here means we have not found a source, not that the feature is missing.