ToolJet
ToolJet runs two release trains at once, and neither has changed direction in months
Comparison · Infra & APIs
Ably vs Hotjar
A side-by-side editorial comparison of Ably and Hotjar — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs Hotjar: at a glance
| Feature | Ably | Hotjar |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 6.3 | 0.0 |
| Sparks · 30d | 1 | 0 |
| Top themes | realtime-infrastructure, ai-agents, durable-execution, liveobjects | stale-feed, user-research, surveys, crawl-source-issue |
| Last editorial update | 1d ago | 12d ago |
| Website | — | Visit → |
What is Ably?
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
What is Hotjar?
Hotjar's update feed has gone quiet — the 2026 entries are share buttons, not releases.
The three most recent entries are not product updates at all: they are captures of the page's social share widget, carrying 'Copy link' as their title and a Facebook share dialog as their URL. Behind them, the newest genuine announcement is from April 2025, covering improvements to Surveys and User Tests including prototype testing. The substantive items below that date to 2024.
Ably vs Hotjar: editorial side-by-side
Ably
6.3INFRA · APIS
Ably is building an agent transport layer on its realtime core, shipping AI SDK versions every ten days.
◆ Current state
Two release trains run side by side in this feed. The AI Transport SDK is moving fast and pre-1.0 — durable execution in 0.5.0, mid-run steering in 0.6.0, an OpenAI Responses codec in 0.7.0, each roughly ten days apart and each carrying breaking changes. The Pub/Sub and Java SDKs move at a steadier pace, working through LiveObjects reach, React and React Native support, and now connectivity fallbacks.
◆ Where it's heading
Ably is treating agent conversations as a transport problem — sessions, resumability, and multi-client reconciliation — rather than as a model-integration problem, and the primitives shipping in AI Transport keep pointing that way. The Pub/Sub line is being pulled along behind it: LiveObjects path APIs and React hooks are the state layer those agent sessions need. The pre-1.0 SDK will keep breaking as the shape settles, which is a reasonable trade while the category is unsettled.
◆ Prediction
Expect AI Transport to keep adding provider codecs beyond OpenAI Responses and to approach an API freeze as breaking changes get more expensive. LiveObjects support should continue spreading across the language SDKs, following the Java path-based API with other platforms.
Hotjar
0.0INFRA · APIS
Hotjar's update feed has gone quiet — the 2026 entries are share buttons, not releases.
◆ Current state
The three most recent entries are not product updates at all: they are captures of the page's social share widget, carrying 'Copy link' as their title and a Facebook share dialog as their URL. Behind them, the newest genuine announcement is from April 2025, covering improvements to Surveys and User Tests including prototype testing. The substantive items below that date to 2024.
◆ Where it's heading
What the real entries show is a product that expanded from behavioural analytics into structured research — surveys, user tests, prototype testing, AI-tagged responses, and a path from survey respondent to follow-up interview. Whether that expansion has continued through 2026 cannot be told from this feed, because nothing since April 2025 has been captured with content.
◆ Prediction
There is not enough recent data to predict a next move. The feed's newest real announcement is more than a year old and the entries after it are page furniture, so any read on Hotjar's current direction would be invented rather than observed.
Alternatives to Ably and Hotjar
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 Hotjar.
Honeycomb
Honeycomb bets that the agent, not the engineer, should notice the anomaly first
Jenkins
Jenkins is shrinking its own war file and rebuilding its UI, one weekly release at a time
GitHub
Copilot's model roster churns weekly while GitHub quietly rewires policy and billing plumbing
incident.io
Nexus does the diagnosis; the rest is on-call plumbing
werf
Four channels, one fix stream — werf's releases are mostly concurrency repairs.
Recent activity from Ably and Hotjar
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoAblyPub/Sub JS SDK v2.27.0: Fallback for networks that block WebSockets
- 11d agoAblyAI Transport JS SDK v0.7.0: OpenAI Responses codec ⚡
- 18d agoAblyPub/Sub JS SDK v2.26.0: React hook for LiveObjects
- 21d agoAblyAI Transport JS SDK v0.6.0: Mid-run steering
- 25d agoAblyPub/Sub JS SDK v2.25.0: Push notifications for React Native
- 29d agoAblyJava SDK v1.8.0: Support LiveObjects Path based API
- 3mo agoHotjarShare-widget capture of the survey auto-tagging update
- 4mo agoHotjarShare-widget capture of the survey button labels update
- 4mo agoHotjarShare-widget capture of the interview invitations update
- 1y agoHotjarNew ways to get the insights you need
- 1y agoHotjarDuplicate capture of the April 2025 Surveys and User Tests update
- 1y agoHotjarSpot bugs and improve your site with User Tests
Frequently asked questions
What is the difference between Ably and Hotjar?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 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 Hotjar?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 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 Hotjar?
Top Hotjar alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Hotjar alternatives" section above for the current picks, or visit /alternatives/hotjar for the full list with editorial commentary on each.