Plain
Plain built an autonomous support agent, and has now built the controls to trust it.
A side-by-side editorial comparison of Formbricks and Respond.io — release velocity, themes, recent moves, and the top alternatives to consider.
| Feature | Formbricks | Respond.io |
|---|---|---|
| Sector | Support | Comms, Support |
| Velocity score | 5.0 | 7.5 |
| Sparks · 30d | 0 | 2 |
| Top themes | multi-tenancy, mcp, release-branches, backports | omnichannel-inbox, ai-agents, usage-based-billing, integrations |
| Last editorial update | 7d ago | 4d ago |
| Website | Visit → | — |
The 5.3 line reached stable and immediately dropped into single-fix patch-RC mode.
Formbricks runs three release branches at once — 5.1, 5.2 and 5.3 — publishing release candidates almost daily, most carrying a single backported fix. The 5.3 line has moved past its feature RCs: 5.3.0-rc.1 through rc.3 delivered MCP scope corrections, Helm volume extension points and an accessibility pass, and the branch is now on 5.3.4-rc.1, a one-line fix stopping no-overlay surveys from blocking the host page they sit on. Workspace and organization scoping remains the recurring thread, with the contact detail page the latest surface re-tied to its authorizing workspace.
respond.io is layering an agent-authoring copilot and consumption billing on top of its omnichannel inbox.
respond.io ships something visible every few days across three fronts: channel coverage, the agent-facing inbox, and AI. Microsoft 365 and Outlook joined as a full email channel with workflow routing and reports, Calendly arrived as an integration, and Instagram Story mentions can now open conversations automatically. The inbox itself picked up a Cmd+K command palette, drag-out full-size image saving, and browser-tab unread signalling, while the mobile app gained offline message queuing.
Formbricks runs three release branches at once — 5.1, 5.2 and 5.3 — publishing release candidates almost daily, most carrying a single backported fix. The 5.3 line has moved past its feature RCs: 5.3.0-rc.1 through rc.3 delivered MCP scope corrections, Helm volume extension points and an accessibility pass, and the branch is now on 5.3.4-rc.1, a one-line fix stopping no-overlay surveys from blocking the host page they sit on. Workspace and organization scoping remains the recurring thread, with the contact detail page the latest surface re-tied to its authorizing workspace.
The multi-tenancy audit is still running and still backported everywhere rather than only forward — API keys, surveys, quotas, integrations, response imports and now the contact detail page have each been re-scoped in turn. Alongside it, the agent-facing surface built out in 5.2.0 is being refined rather than extended: the 5.3 MCP work is scope correction, not new capability. With 5.3 now issuing patch RCs a day or two apart, that branch has crossed from feature development into maintenance.
Expect 5.3 to keep issuing single-fix patch release candidates while the next feature drop opens a 5.4 line, and 5.1 and 5.2 to continue receiving only security and billing backports.
respond.io ships something visible every few days across three fronts: channel coverage, the agent-facing inbox, and AI. Microsoft 365 and Outlook joined as a full email channel with workflow routing and reports, Calendly arrived as an integration, and Instagram Story mentions can now open conversations automatically. The inbox itself picked up a Cmd+K command palette, drag-out full-size image saving, and browser-tab unread signalling, while the mobile app gained offline message queuing.
Two moves stand out from the steady feature drip. Copilot went into every workspace as an agent builder that drafts an AI Agent from a description and runs test cases against it before publishing — respond.io is attacking the authoring problem, not the runtime one. Alongside it, AI Credit On-Demand converts the AI allowance from a hard cap into metered overage, so automation stops breaking mid-conversation and AI becomes consumption revenue. The remaining work is a methodical widening of channels and the surfaces an agent touches all day.
Expect more channels to arrive in the same shape Outlook did — inbox, workflows, and reports together — and Copilot's authoring surface to extend past agents into workflows. The AI Agent wait-time and Copilot test-case work both point toward more pre-publish validation tooling.
Other Support products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Formbricks.
Plain built an autonomous support agent, and has now built the controls to trust it.
Sleekplan rebuilt itself around AI triage, then put the feedback board inside ChatGPT.
Comm100 publishes steadily about AI support — none of it is Comm100 shipping anything.
Hatz sells through MSPs, and its roadmap has started to serve the partner more than the end user
A teaser-only content feed making one argument: AI in the contact center fails on knowledge, not models.
A steady SEO blog on SMS basics, with the occasional ecommerce integration walkthrough.
Other Support products tracked by Sparkpulse, ranked by recent ship velocity. Tap any card for the full editorial trajectory or compare directly with Respond.io.
Chanty's feed is an HR statistics content mill, not a product changelog
Proton Bridge spends its first release in ten weeks on crashes, memory bounds and dead code
Stalwart is chasing mail RFCs and its own storage layer at the same time
Every manual control Mux ships now arrives with a Robots workflow that does it for you
Netcore's feed remains a demand-generation channel; ten entries, zero product releases.
mailcow's release notes are almost entirely upstream security currency.
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Respond.io 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.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Respond.io 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 Support products to evaluate alongside.
Top Formbricks alternatives in Support are ranked by recent ship velocity. Browse the "Formbricks alternatives" section above for the current picks, or visit /alternatives/formbricks for the full list with editorial commentary on each.
Top Respond.io alternatives in Support are ranked by recent ship velocity. Browse the "Respond.io alternatives" section above for the current picks, or visit /alternatives/respond-io for the full list with editorial commentary on each.