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Ably vs Supabase Realtime(2026)

Ably is better for teams that need message ordering guaranteed. Supabase Realtime is the stronger choice if integrated with supabase db. Ably is freemium (from $0 (free 6M messages/month)) and Supabase Realtime is freemium (from $25/month (included in Supabase)).

Full feature breakdown, pricing details, and pros & cons below.

By Bikram Nath

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Ably logo

Ably

freemium

Ably is a realtime messaging platform with guaranteed delivery, ordering, and a global edge network.

Starting at $0 (free 6M messages/month)

Visit Ably
Supabase Realtime logo

Supabase Realtime

freemium

Supabase Realtime broadcasts Postgres database changes over WebSockets, with support for broadcast and presence channels.

Starting at $25/month (included in Supabase)

Visit Supabase Realtime

How Do Ably and Supabase Realtime Compare on Features?

FeatureAblySupabase Realtime
Pricing modelfreemiumfreemium
Starting price$0 (free 6M messages/month)$25/month (included in Supabase)
Pub/Sub✓—
Presence✓✓
Message history✓—
Push notifications✓—
Server-sent events✓—
MQTT support✓—
Postgres CDC—✓
Broadcast channels—✓
Row-level security filters—✓
Client SDKs—✓
Scale to millions—✓

Ably Pros and Cons vs Supabase Realtime

A

Ably

+Message ordering guaranteed
+Generous free tier
+Global edge network
+Multiple protocols
−More complex than Pusher
−Pricing can be hard to predict
−Docs could be clearer
S

Supabase Realtime

+Integrated with Supabase DB
+Postgres RLS on realtime events
+Good free tier
+Simple client SDK
−Tied to Supabase
−Less flexible than Ably for non-Postgres use cases

Should You Use Ably or Supabase Realtime?

For most teams, Ably is the better default: it offers message ordering guaranteed and is freemium (from $0 (free 6M messages/month)). Choose Supabase Realtime instead if integrated with supabase db matters more than more complex than pusher. There is no universal winner — the right pick depends on your budget, team size, and whether you value message ordering guaranteed or integrated with supabase db more.

Choose Ably if…

  • •Message ordering guaranteed
  • •Generous free tier
  • •Global edge network

Choose Supabase Realtime if…

  • •Integrated with Supabase DB
  • •Postgres RLS on realtime events
  • •Good free tier

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