Convex vs Supabase: Which One Should You Choose in 2026?

Checked September 26, 2026. USD, excluding tax. Based on published pricing pages, not a hands-on benchmark. Jet Admin publishes this comparison and competes with neither product.

Both of these list $25 as their entry paid price, which makes them look comparable. They aren't. Convex charges $25 per developer per month. Supabase charges $25 per project per month.

A five-developer team running one product pays $125 on Convex and $25 on Supabase. A solo developer running five projects pays $25 on Convex and $125 on Supabase. Same two numbers, opposite answers — which is why the structural question has to come before the feature comparison.

At a glance

Sources: Convex pricing and Supabase pricing, checked September 26, 2026.

The per-developer cliff

Convex Professional runs $25 per developer for 1–20 developers. Above that, Business and Enterprise carry a $2,500 monthly minimum at 50+ developers.

Work out where that lands for you. At 20 developers you're paying $500 on Professional. The next published tier starts at $2,500 — a fivefold jump — and the page frames it around 50+ developers, leaving the 20-to-50 range something to establish with Convex directly rather than read off a table.

If your engineering team is growing through that range, ask about it before you build on the platform. A pricing cliff discovered at headcount 25 is a bad time to reconsider your backend.

Supabase has no equivalent, because it doesn't count your developers. Pro is $25 a project regardless of how many people touch it, and Team at $599 buys organizational capability rather than seats.

Where the money actually differs

Convex Professional includes 25 million function calls, 50 GB of database storage, 100 GB of file storage, 50 GB egress, 1 GB search storage, 250 GB-hours of action compute and 10,000 concurrent sessions. Overages run $2 per additional million function calls, $0.20 per GB of database and $0.12 per GB of egress.

Supabase Pro includes 8 GB of database disk, 100 GB file storage, 250 GB egress, 100,000 MAU and 2 million Edge Function invocations, with spend caps on by default. Overages are $0.125 per GB of database, $0.09 per GB of egress and $0.00325 per MAU.

On raw included capacity, Convex's Professional allowances are notably larger — 50 GB of database against 8 GB. But those allowances are per deployment, not per developer, while the price is per developer. A four-person team pays $100 for the same 50 GB that a solo developer gets for $25.

Convex's free tier is unusually workable at 1 million function calls, 0.5 GB database and 1,000 concurrent sessions — enough to run something real. Supabase's free tier leads on user count at 50,000 MAU against a 500 MB database.

Two different ideas of a backend

Supabase gives you Postgres and the tools around it. Your data lives in a standard relational database, you query it with SQL, and you could move it elsewhere.

Convex gives you a reactive TypeScript backend where queries are functions, subscriptions update automatically, and the database is Convex's own. Everything is typed end to end, and the reactivity is built in rather than bolted on. Teams who like it tend to like it a lot.

The tradeoff is portability. Postgres is a commodity; Convex's database is not. That's not an argument against Convex — plenty of successful products run on proprietary platforms — but it's a real consideration, and it compounds with the pricing cliff. Both point the same direction: be more confident about Convex before committing than you'd need to be with Postgres.

Which should you choose?

Choose Convex if you're a small team or solo developer building a realtime, TypeScript-first application, if its reactive model fits how you want to work, and if you'll stay comfortably under 20 developers. The developer experience is the product, and for the right team it's a genuine accelerator.

Choose Supabase if you want Postgres, if your team is large or growing fast, if you run several projects, or if portability matters. Per-project pricing scales with products rather than headcount, which is usually the friendlier direction.

Do the arithmetic on your actual team size before anything else. Multiply your developer count by $25 for Convex and your project count by $25 for Supabase. Those two numbers often settle it before features enter the conversation.

Where Jet Admin fits

Neither is an alternative to Jet Admin; they're what sits underneath it. Jet Admin connects to a database or API you already have — a Supabase Postgres instance among them — and supplies the interface layer without you building it.

The overlap is internal tooling: admin panels, support queues, operations dashboards. If that's what you need on top of your backend, Jet Admin removes the application layer rather than the database. For a customer-facing product you still need one of these underneath.

Frequently asked questions

Is Convex really $25 a month?

$25 per developer per month, for 1 to 20 developers. A five-person team is $125.

What happens above 20 developers?

Business and Enterprise carry a $2,500 monthly minimum and the page frames them around 50+ developers. The 20-to-50 range isn't published — ask Convex directly, ideally before you build.

Which free tier is better?

Different strengths. Convex gives 1 million function calls, 0.5 GB database and 1,000 concurrent sessions. Supabase gives 500 MB database and 50,000 monthly active users. Convex favours function-heavy apps; Supabase favours user-heavy ones.

Can I migrate off Convex later?

Harder than migrating off Supabase. Supabase is Postgres, so your data and queries are portable. Convex's database is proprietary, so a move means rewriting the data layer.

Which has more included capacity?

Convex Professional, on paper — 50 GB of database against Supabase Pro's 8 GB, and 25 million function calls. Remember the allowances are per deployment while the price is per developer.

Does Convex do realtime better?

Reactivity is architectural in Convex rather than a feature alongside the database — queries re-run and push automatically. Supabase has realtime subscriptions, but it is a component rather than the organizing idea. If realtime is central to your product, that difference is worth a prototype.

Count developers, then count projects

This comparison is decided by a multiplication before it's decided by a feature. Developers times $25 for Convex; projects times $25 for Supabase. Whichever number is smaller usually tells you where to start.

Then check where your team size will be in eighteen months against Convex's published tiers — that's the question most likely to be expensive later.

If what you're building on top is an internal tool rather than a product, connect Jet Admin to the database directly and skip the application layer.