Convex Review 2026: Pricing, Features, Pros & Cons
Convex is a reactive backend-as-a-service that folds a database, serverless functions, and real-time sync into a single TypeScript codebase. Here's an honest look at what it does well, what it costs, and how it compares to Supabase and Firebase.
Quick Verdict
Best for: TypeScript teams building real-time apps who want to skip wiring together a database, API, and pub/sub layer. Less ideal for teams who need raw SQL or a non-JS backend language.
What Is Convex?
Convex is a backend-as-a-service built around automatic reactivity. Instead of a database, an API layer, and a separate real-time/pub-sub service stitched together by hand, Convex ships all three as one reactive system: define a query once, and every connected client re-renders automatically the moment the underlying data changes.
Everything — schema, queries, and mutations — is written in TypeScript, giving end-to-end type safety from the database up through the frontend. Mutations run as ACID transactions, and the platform includes scheduled functions and full-text search as native features rather than third-party add-ons.
Convex is popular with product teams building collaborative or live-updating features — dashboards, chat, multiplayer tools — who want the reactivity of Firebase with the type safety and developer experience of a modern TypeScript stack.
Convex Pros & Cons
✓ Pros
- •Automatic reactivity with zero extra plumbing: query results update live across every connected client the instant underlying data changes, without hand-wired websockets or polling
- •One mental model instead of three: database, server functions, and real-time sync all live in the same TypeScript codebase, cutting out the usual glue code between a database, an API layer, and a subscription service
- •End-to-end type safety: schema, queries, and mutations are all TypeScript, so a field rename surfaces as a compile error instead of a runtime bug in production
- •ACID transactions by default: mutations run as serializable transactions, which removes a whole class of race-condition bugs common in DIY real-time backends
- •Built-in scheduled jobs and full-text search: cron-style scheduled functions and search indexes ship as first-class features, not bolt-on add-ons
- •Generous free tier for prototyping: enough headroom to build and demo a full real-time app before any billing conversation starts
✗ Cons
- •TypeScript/JavaScript only: teams standardized on Python, Go, or another backend language get no first-class support and would need a separate service anyway
- •Newer and smaller ecosystem than Supabase or Firebase: fewer tutorials, community integrations, and third-party tools to lean on when something unusual comes up
- •Vendor lock-in on the query model: Convex functions and its reactive query system aren't portable to a traditional SQL/REST stack without a rewrite if you ever migrate away
- •No raw SQL access: developers who want to drop into SQL for a specific complex query or reporting job don't have that escape hatch the way they would with Supabase's Postgres foundation
Convex Pricing 2026
Free
- •Full feature set for prototyping
- •Reasonable function/bandwidth limits
- •Real-time sync included
- •Community support
Side projects, prototypes, and evaluating the platform
Professional
- •Higher usage limits
- •Team collaboration features
- •Priority support
- •Production-ready quotas
Small teams shipping a production real-time app
Team / Enterprise
- •Everything in Professional
- •SSO and advanced admin controls
- •Custom usage limits
- •Dedicated support
Growing engineering teams and enterprises with compliance needs
Convex vs Supabase vs Firebase
| Feature | Convex | Supabase | Firebase |
|---|---|---|---|
| Real-time sync | ✅ Automatic, built-in | ⚠️ Manual subscriptions | ✅ Automatic (Firestore) |
| Type safety | ✅ End-to-end TypeScript | ⚠️ Generated types, SQL-first | ⚠️ Partial (SDK types) |
| Database model | Document store, reactive queries | Postgres (relational, SQL) | Document store (Firestore) |
| Serverless functions | ✅ Native, same codebase | ✅ Edge Functions (separate) | ✅ Cloud Functions (separate) |
| Free tier | ✅ Generous prototyping tier | ✅ Free tier w/ project pausing | ✅ Spark plan, usage caps |
| Best for | Real-time apps in a single TS codebase | Teams wanting Postgres + SQL access | Mobile-first apps in the Google ecosystem |
Frequently Asked Questions
Is Convex free?
Yes — Convex has a free tier generous enough to build and demo a full real-time application. The Professional plan starts at $25/mo for higher usage limits, and Team/Enterprise pricing runs $40/user/mo or custom for larger organizations.
What makes Convex different from a traditional backend?
Convex combines a database, serverless functions, and real-time sync into a single reactive system. Query results automatically update on every connected client when underlying data changes, without developers wiring up websockets, polling, or a separate pub/sub service.
Convex vs Supabase: which is better?
Supabase is built on Postgres and gives you direct SQL access, which suits teams that want relational data modeling and are comfortable managing subscriptions manually. Convex trades SQL access for automatic reactivity and end-to-end TypeScript type safety, which suits teams building real-time features who want less glue code.
Does Convex support languages other than TypeScript?
Convex functions are written in TypeScript or JavaScript. There's no first-class support for Python, Go, or other backend languages, so teams standardized on a different stack would need to run Convex alongside a separate service.
Can I migrate away from Convex later?
Migrating off Convex means rewriting its reactive query functions and document-based schema for a traditional REST/SQL stack — there's no raw SQL escape hatch, so switching later carries more rework than migrating between two SQL-based providers.
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See how Convex compares to other backend and database platforms.
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