Ably vs Supabase Realtime
On the evidence we track, Ably leads this comparison with a composite score of 75/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for realtime messaging infra. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Ably
LeaderAbly is a platform providing APIs and SDKs for building real-time features including messaging and chat, with fully managed cloud infrastructure.
Supabase Realtime
A server that monitors PostgreSQL databases for data changes and broadcasts updates instantly to connected clients. It polls PostgreSQL's replication logs, converts modifications to JSON, and delivers them to authorized subscribers via WebSocket.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Ably
LeaderFree tier available. Paid plans start at $29/month with per-million message and channel minute billing.
- FreeFree
- All Ably products included
- Community and email support
- No commitment
- Standard$29/month plus usage charges
- 1 day email support SLA
- Pro$399/month plus usage charges
- 4 hour email support SLA
- Datadog lite monitoring
- EnterpriseContact sales
- 24/7 mission critical support
- 99.999% uptime SLA
- Committed use discounts
- Datadog integration
- SSO and SCIM
- +4 more
Supabase Realtime
Free tier available. Pro from $25/month for first project. Team $599/month. Usage-based add-ons for storage, bandwidth, compute, and additional features.
- FreeFree
- Unlimited API requests
- 50,000 monthly active users
- 500 MB database size
- 5 GB cached egress
- 1 GB file storage
- +1 more
- Pro$25/month for first project; $10/month for additional projects
- Everything in Free Plan
- 100,000 monthly active users (then $0.00325 per MAU)
- 8 GB disk size per project (then $0.125 per GB)
- 250 GB egress (then $0.09 per GB)
- 250 GB cached egress (then $0.03 per GB)
- +4 more
- Team$599/month
- Everything in Pro Plan
- SOC2 & ISO 27001 compliance
- Project-scoped and read-only access
- HIPAA available as paid add-on
- SSO for Supabase Dashboard
- +3 more
- CustomContact sales
- Designated support manager
- Uptime SLAs
- AWS PrivateLink support
- 24/7/365 premium enterprise support
- Private Slack channel
- +1 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
Ably
Leader- AWS Lambda
- Microsoft Azure Functions
- Google Cloud Functions
- Cloudflare Workers
- AWS Kinesis
- Kafka
- RabbitMQ
- AMQP
- AWS SQS
- Pulsar
- Zapier
- IFTTT
- Datadog
- BigQuery
- Terraform
- Netlify
- HTTP Webhooks
Supabase Realtime
Not documented yet.
Ably or Supabase Realtime: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.