GravityKit
GravityKit folds every GravityView extension into one Pro plugin.
Comparison · Infra & APIs
Ably vs Expo
A side-by-side editorial comparison of Ably and Expo — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Expo: at a glance
| Feature | Ably | Expo |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 7.5 | 5.0 |
| Sparks · 30d | 2 | 0 |
| Top themes | ai transport, realtime messaging, agents, mau-billing | eas, workflows, integrations, react-native |
| Last editorial update | 21h ago | 3d ago |
| Website | — | — |
What is Ably?
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
What is Expo?
Expo keeps wiring EAS to other tools, now Supabase in one command.
Expo shipped SDK 58 as stable on October 15 and has since spent its changelog on EAS. Workflows gained custom concurrency groups, queueing and hooks at more points in a job, and a new command creates a Supabase project, installs the SDK and puts its keys into every Expo environment from the terminal.
Ably vs Expo: editorial side-by-side
Ably
7.5INFRA · APIS
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
◆ Current state
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
◆ Where it's heading
The November releases fit one plan: split clients so MAU billing can count end users, then make the AI layer a thin adaptor on top of the same channels used for chat, presence and LiveObjects. Server-side additions in Java and JS (HTTP LiveObjects, channel pools, a Temporal plugin) point at agent backends as the intended publisher.
◆ Prediction
Expect more agent framework adaptors and server SDKs reaching AI Transport parity, with Chat and LiveObjects examples built around agents joining human conversations.
Expo
5.0INFRA · APIS
Expo keeps wiring EAS to other tools, now Supabase in one command.
◆ Current state
Expo shipped SDK 58 as stable on October 15 and has since spent its changelog on EAS. Workflows gained custom concurrency groups, queueing and hooks at more points in a job, and a new command creates a Supabase project, installs the SDK and puts its keys into every Expo environment from the terminal.
◆ Where it's heading
After closing its own agent in July, Expo has been connecting EAS to outside services rather than building them: PostHog in September, the Claude desktop app in August, and now Supabase. In parallel, Observe and Workflows keep getting operations features that make EAS a place to run a mobile team's release process.
◆ Prediction
Expect more one-command integrations for common backend and analytics services, and further Workflows controls of the kind that shipped on November 9.
Alternatives to Ably and Expo
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Ably or Expo.
Payload CMS
Payload's v4 beta.9 keeps every past image crop and raises the Node floor again.
Nautobot
Nautobot 3.3 alpha 2 adds test helpers and a cable location filter after 3.2.9's token-leak fix.
Clair
Clair 4.10 RC can read SBOMs to match Java vulnerabilities.
Shuffle
Shuffle tags builds almost daily, but the notes are empty.
KrakenD
KrakenD's community edition is shipping only dependency bumps.
Recent activity from Ably and Expo
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoAblyAI Transport 1.0 makes Ably a resumable transport for AI chat ⚡
- 2d agoAblyJava SDK 2.1 reads and updates LiveObjects over HTTP
- 2d agoAblyJS SDK 3.1 adds channel pools and a Temporal plugin
- 3d agoExpoOne command to connect Supabase with Expo
- 4d agoAblyAbly Kafka Connector v4.2.1
- 4d agoExpoConcurrency groups and hooks for Workflows
- 8d agoAblyMonthly active user (MAU) pricing ⚡
- 8d agoAblyAbly Chat React UI Kit v0.4.0
- 29d agoExpoExpo SDK 58 is now stable
- 1mo agoExpoRefreshed settings navigation on expo.dev
- 1mo agoExpoNative crash reporting in Expo's Observability service
- 1mo agoExpoExpo SDK 58 Beta is now available ⚡
Frequently asked questions
What is the difference between Ably and Expo?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Ably better than Expo?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Ably?
Top Ably alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Ably alternatives" section above for the current picks, or visit /alternatives/ably for the full list with editorial commentary on each.
What are the best alternatives to Expo?
Top Expo alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Expo alternatives" section above for the current picks, or visit /alternatives/expo for the full list with editorial commentary on each.