Krisp
Krisp turned noise cancellation into a contact-center AI stack — and now defends it against deepfakes.
A side-by-side editorial comparison of Dendrite and Superhuman — release velocity, themes, recent moves, and the top alternatives to consider.
| Feature | Dendrite | Superhuman |
|---|---|---|
| Sector | Comms | Comms |
| Velocity score | 0.0 | 7.5 |
| Sparks · 30d | 0 | 2 |
| Top themes | matrix, homeserver, fork, federation | mcp, auto-drafts, agent-native, multi-account |
| Last editorial update | 2h ago | 20h ago |
| Website | Visit → | — |
A forked, relicensed Dendrite spent its first year catching up on Matrix protocol and security debt
The window opens with the first release after forking from matrix-org/dendrite under AGPLv3, which fixed long-standing state-reset bugs and added I2P and Onion listening. What follows is a security release closing a server-side request forgery vulnerability, then a release adding room version 12 support and two MSC implementations, and finally two quick patches for unresponsiveness, v12 room joins and malformed PDUs blocking whole transactions.
Superhuman is rebuilding around the assistant: pre-drafted replies and multi-account MCP.
Superhuman ships small and often, and its releases now split cleanly in two. One half is conventional client work — calendar on Android, multi-day views on iPhone and iPad, personalized availability sharing. The other is an aggressive agent surface: Auto Drafts 2.0 pre-drafts a reply to every message that needs one, and the Mail MCP now drives multiple Gmail and Outlook accounts from Claude, ChatGPT and Codex.
The window opens with the first release after forking from matrix-org/dendrite under AGPLv3, which fixed long-standing state-reset bugs and added I2P and Onion listening. What follows is a security release closing a server-side request forgery vulnerability, then a release adding room version 12 support and two MSC implementations, and finally two quick patches for unresponsiveness, v12 room joins and malformed PDUs blocking whole transactions.
This is a fork proving it can carry a homeserver. The order is telling: license and state correctness first, then a CVE, then protocol currency with room version 12, then the operational bugs that surface once people actually run it. Several fixes carry outside contributor credits, which is the fork's clearest sign of life.
Expect continued protocol catch-up on newer MSCs and room versions plus operational fixes, since federation compatibility is the constraint that sets this project's agenda.
Superhuman ships small and often, and its releases now split cleanly in two. One half is conventional client work — calendar on Android, multi-day views on iPhone and iPad, personalized availability sharing. The other is an aggressive agent surface: Auto Drafts 2.0 pre-drafts a reply to every message that needs one, and the Mail MCP now drives multiple Gmail and Outlook accounts from Claude, ChatGPT and Codex.
The centre of gravity is moving off Superhuman's own client. Each recent release makes the mailbox more usable from somewhere else — first a Codex plugin with prebuilt workflows, then parallel search across every connected account — while in-app work is mostly mobile parity. Superhuman is positioning as the mail layer assistants call, and it names the single-account limit of the first-party Gmail and Outlook connectors as the reason to switch.
Expect the MCP surface to keep absorbing the features that only the client could do — Split Inbox triage, Read Statuses, Smart Send are already listed — with the native apps continuing to trail on platform parity.
Other Comms 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 Dendrite or Superhuman.
Krisp turned noise cancellation into a contact-center AI stack — and now defends it against deepfakes.
Openfire's 5.1 line pairs XMPP channel binding with a steady cleanup of its own crypto
Signal is quietly rebuilding group governance while polls and pins push into everyday chats
Trumpia publishes SMS marketing explainers where its release notes should be.
Bandwidth is finishing PSTN replacement country by country while opening the network to AI voice agents.
Adding email to the stack so voice, SMS, WhatsApp and inference all bill as one API
See all Dendrite alternatives → · See all Superhuman alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Superhuman is currently shipping more aggressively (velocity 7.5 vs 0.0), 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. Superhuman is currently shipping more aggressively (velocity 7.5 vs 0.0), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
Top Dendrite alternatives in Comms are ranked by recent ship velocity. Browse the "Dendrite alternatives" section above for the current picks, or visit /alternatives/dendrite for the full list with editorial commentary on each.
Top Superhuman alternatives in Comms are ranked by recent ship velocity. Browse the "Superhuman alternatives" section above for the current picks, or visit /alternatives/superhuman for the full list with editorial commentary on each.