Guides
Supabase Realtime Alternatives in 2026
Supabase Realtime is useful when your app already lives on PostgreSQL and you want realtime updates attached to that data model. But it is not the only way to build live product experiences. The strongest alternatives are Ably, Firebase Realtime Database, Redis Pub/Sub, and Convex.
Short answer
Choose Ably if your realtime layer is really a messaging problem. Choose Convex if your realtime problem is tied to app state and backend logic. Stay on Supabase Realtime if PostgreSQL remains the center of the system and database-driven updates are the cleanest fit.
Comparison Table
| Option | Best for | Strengths | Main tradeoff |
|---|---|---|---|
| Ably | Realtime messaging, event distribution, and pub-sub reliability | Strong managed infrastructure, delivery guarantees, channel abstractions, global scale | Does not replace your database model; it complements it |
| Firebase Realtime Database | Mobile-first sync and simple realtime data updates | Fast setup, good offline and sync patterns, strong Firebase integration | Data modeling is less natural for SQL-style product logic |
| Redis Pub/Sub | Internal event fan-out and backend messaging | Simple, fast, infrastructure-friendly, good for backend pipelines | Not a product-facing realtime platform on its own |
| Convex | App backends where state sync and backend logic are tightly coupled | Realtime data model, backend functions, product-friendly developer workflow | A bigger platform choice than swapping only the realtime layer |
What Supabase Realtime Is Actually Good At
Supabase Realtime works best when your application state already maps cleanly to PostgreSQL tables and row changes. In that model, realtime becomes an extension of the database rather than a separate infrastructure system. That keeps the architecture simple.
The limitation is that not every realtime problem is really a database-change problem. Presence, multiplayer coordination, large fan-out messaging, and product experiences with stricter delivery guarantees often push teams toward dedicated messaging or state-sync platforms.
Best Alternatives by Realtime Pattern
- Best for messaging infrastructure: Ably.
- Best for mobile sync: Firebase Realtime Database.
- Best for backend event distribution: Redis Pub/Sub.
- Best for app-state plus backend workflow: Convex.
- Best when PostgreSQL is still the system of record: Supabase Realtime itself.
FAQ
What is the best alternative to Supabase Realtime?
Ably is the best alternative when reliability and messaging infrastructure matter most. Convex is the best alternative when you want a more opinionated app backend with realtime built in.
Is Supabase Realtime better than Firebase Realtime Database?
Supabase Realtime is better for teams already committed to PostgreSQL and relational data. Firebase Realtime Database is better for mobile-first sync patterns and Firebase-native apps.
When should you replace Supabase Realtime?
Replace it when your realtime requirements become more about delivery guarantees, large-scale pub-sub, mobile sync specialization, or a more integrated app-state platform than PostgreSQL change feeds.