Supabase vs PlanetScale vs Turso: Which DB Fits Solo Devs?

Database choice used to be boring. Pick Postgres, call it a day.

That’s no longer true — and for solo developers shipping production apps in 2026, the wrong call costs real money and real performance.

The Turso vs Supabase vs PlanetScale conversation has exploded because the options have genuinely diverged. Turso’s edge-first SQLite architecture, Supabase’s Postgres-everything approach, and PlanetScale’s serverless MySQL branching model each make completely different bets about where your data should live and how fast it needs to get to users. The stakes are higher now. Users expect sub-100ms interactions. Free tiers are getting tighter. And solo developers — one person, limited budget, zero ops team — need to make this call once and live with it for months.

This analysis covers three things: raw latency characteristics, pricing reality for solo devs in 2026, and which workloads each platform actually handles well.

The short version: Turso wins on global read latency due to edge replication, but Supabase’s depth makes it the better all-around choice for most solo developers. PlanetScale’s 2024 pricing pivot dramatically changed its calculus for smaller projects.

Key Takeaways

1. Turso’s edge-replicated reads clock under 20ms globally, per Turso’s published benchmarks — a genuine structural advantage for read-heavy apps with a distributed user base.
2. PlanetScale eliminated its free tier in March 2024, making it a non-starter for solo dev prototypes unless the project has paying users from day one.
3. Supabase’s free tier remains the most feature-complete entry point in 2026 — covering auth, storage, realtime, and Postgres — with the tradeoff of higher write latency outside primary regions.

The Market Shifted Fast

Two years ago, PlanetScale was the default “cool kid” database for solo developers who wanted serverless MySQL with zero-downtime schema changes. Its branching model felt like Git for databases. The free tier made experimentation cheap.

Then March 2024 happened. PlanetScale killed its Hobby plan, pushing solo devs toward a $39/month minimum. That single pricing change reshuffled the entire comparison. Developers who’d built side projects on PlanetScale’s free tier scrambled to migrate — and Supabase and Turso both saw signups spike in Q2 2024, according to Turso’s public blog post from that period.

Turso, which launched general availability in 2023, built on libSQL — a fork of SQLite — and made a specific architectural bet: replicate data to the edge, close to users, and serve reads from hundreds of locations globally. This isn’t a CDN trick. It’s actual database replicas running SQLite at Fly.io edge nodes.

Supabase, meanwhile, has kept executing on its “Firebase but Postgres” positioning. As of early 2026, it supports 12+ regions on its Pro plan, ships native pgvector for AI workloads, and has added read replicas to reduce latency for globally distributed apps. The platform has matured significantly — the early instability complaints from 2022 are largely historical at this point.

PlanetScale still exists and still ships genuinely good technology. But it’s now priced for teams, not solo builders.

Where Each Platform Actually Wins

Read Latency: Turso’s Structural Advantage

For a read-heavy app — a content site, a public API, a mobile app dominated by GET requests — Turso’s edge model produces numbers that other platforms structurally can’t match from a single-region deployment.

Turso’s published latency data shows reads from edge replicas averaging 10–20ms globally. Supabase, running Postgres on a single primary region like us-east-1, can’t touch that for a user in Tokyo or São Paulo. Supabase’s read replica feature on Pro plans helps, but you’re manually choosing regions — it’s not automatic global distribution.

SQLite at the edge isn’t magic. It makes one specific tradeoff: writes go to a primary node, reads come from the nearest replica. If your app writes frequently, that propagation lag matters. For most content apps and SaaS read paths, it doesn’t.

Write Performance and Consistency

Supabase wins here, clearly. Postgres’s ACID guarantees, mature transaction support, and row-level security policies give it a structural edge for write-heavy or complex relational workloads. Building anything with financial transactions, multi-table writes, or complex joins under load? Supabase’s Postgres foundation is the right call.

Turso’s write path routes everything through a primary — fine for low write volume, but it introduces a consistency lag for edge replicas that can hit 100–200ms depending on geography. For a comments section or a settings update, that’s invisible. For a live collaborative tool, it’s noticeable.

PlanetScale’s Vitess-based MySQL still handles writes well, particularly for high-throughput workloads. Its online schema changes — no table locks — remain a genuine technical advantage at scale. But you need to be at scale to justify $39+/month.

Ecosystem Depth and Solo Dev Productivity

This is where Supabase pulls ahead for most real-world solo dev scenarios. Auth, storage, edge functions, realtime subscriptions, auto-generated REST and GraphQL APIs — it’s all there, documented, and works out of the box. Raw performance benchmarks often miss this dimension entirely.

Turso is a database. Just a database. You’ll need to wire up your own auth (Clerk, Auth.js, whatever), your own storage (Cloudflare R2, S3), your own API layer. That’s fine if you want control. It’s overhead if you’re trying to ship over a weekend.

PlanetScale is also just a database — with the added context that its best features (branching, schema management) solve problems that solo devs rarely hit until much later.

The Decision Matrix

The tradeoffs are real. Turso’s free tier is surprisingly generous — 500 databases and 9GB storage, per their current pricing page — making it excellent for per-tenant database architectures, a pattern gaining serious traction in B2B SaaS. Supabase’s free tier limits you to two projects but packages an entire backend. PlanetScale’s $39/month floor means you need revenue before it makes financial sense.

Three Real Scenarios, Three Different Answers

Building a global content API or read-heavy mobile backend: Turso is the call. Edge latency wins, the free tier handles early-stage traffic, and libSQL’s SQLite compatibility makes local dev frictionless. The limited ecosystem is acceptable if you’re already using something like Clerk for auth.

Building a full-stack SaaS with auth, file uploads, and complex queries: Supabase. The productivity argument is overwhelming for one developer. Spending three days wiring together auth, storage, and realtime instead of using what’s already built is a poor use of time. The latency isn’t bad — it’s just not Turso-level global.

Scaling a B2B product with an existing MySQL codebase and multiple engineers: PlanetScale’s schema branching and zero-downtime migrations justify the cost at that point. That’s the honest framing — this scenario isn’t a solo dev story anymore.

One pattern worth watching: Turso’s per-database model maps cleanly onto multi-tenant architectures where each customer gets an isolated SQLite database. At scale, this sidesteps the noisy-neighbor problem entirely. It’s an underrated architectural advantage for certain SaaS shapes.

This approach can fail when write volume grows unexpectedly. Teams that chose Turso for its read performance and then built features requiring frequent writes have hit propagation lag issues that required rearchitecting. Know your write patterns before committing.

What to Watch in 2026

The question doesn’t have one answer — it has three correct answers depending on what you’re building.

• Turso wins on global read latency but requires assembling your own stack around it
• Supabase wins on ecosystem completeness and free-tier value for solo developers
• PlanetScale is now a team-scale product — its pricing reflects that
• Edge SQLite (Turso’s architecture) is the pattern to watch for multi-tenant SaaS over the next 12 months

Over the next 6–12 months, watch Supabase’s read replica rollout. If global reads become zero-config, Turso’s core latency advantage narrows considerably. Also watch whether PlanetScale introduces a lower entry tier — the developer community backlash from the 2024 free tier removal was loud, and they may respond.

The bottom line: if you’re a solo developer starting a new project today, start with Supabase unless you have a specific reason not to. If global read latency is your primary constraint from day one, Turso is the sharper tool. PlanetScale earns its place when your team grows past three and MySQL is already in the stack.

Running Supabase or Turso in production? Real latency numbers from your own dashboards are more instructive than any benchmark — share them in the comments.

References

1. Best Database Software for Startups and SaaS (2026): A Developer’s Guide
2. SQLite vs Supabase for Solo Developers (2026) | SoloDevStack
3. Best Turso Alternatives (2026): Edge Database Pricing

Photo by NASA on Unsplash