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Proton Bridge vs Superhuman

A side-by-side editorial comparison of Proton Bridge and Superhuman — release velocity, themes, recent moves, and the top alternatives to consider.

Proton Bridge vs Superhuman: at a glance

FeatureProton BridgeSuperhuman
SectorCommsComms
Velocity score2.57.5
Sparks · 30d01
Top themesemail, imap, privacy, maintenancemcp, auto-drafts, agent-native, multi-account
Last editorial update16h ago20d ago
WebsiteVisit →

What is Proton Bridge?

Proton Bridge spends its first release in ten weeks on crashes, memory bounds and dead code

v3.26.0 is a maintenance cut. The user-visible items are a macOS 27 crash fix, bounded CPU and memory in the Gluon RFC parser, deletion of orphaned unencrypted vaults once keychain access returns, and a meta+W shortcut. The rest is internal: two unused subsystems removed from go-proton-api, two Go toolchain bumps, gomock swapped for uber-go/mock, and June and July vulnerability patches folded in.

Read the full Proton Bridge trajectory →

What is Superhuman?

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.

Read the full Superhuman trajectory →

Proton Bridge vs Superhuman: editorial side-by-side

P2.5

Proton Bridge spends its first release in ten weeks on crashes, memory bounds and dead code

◆ Current state

v3.26.0 is a maintenance cut. The user-visible items are a macOS 27 crash fix, bounded CPU and memory in the Gluon RFC parser, deletion of orphaned unencrypted vaults once keychain access returns, and a meta+W shortcut. The rest is internal: two unused subsystems removed from go-proton-api, two Go toolchain bumps, gomock swapped for uber-go/mock, and June and July vulnerability patches folded in.

◆ Where it's heading

Releases arrive in long gaps — ten weeks since v3.25.0 — and each one bundles a quarter of dependency hygiene with a handful of IMAP correctness fixes. The recurring theme is RFC 3501 conformance and resource bounds in the mail parser rather than new capability, which is what a local IMAP shim for an encrypted mailbox is supposed to look like.

◆ Prediction

Given the pattern of shipping OS-compatibility fixes shortly after a macOS release, the next cut is likely another maintenance bundle timed to whatever the current macOS version breaks.

S7.5

Superhuman is rebuilding around the assistant: pre-drafted replies and multi-account MCP.

◆ Current state

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.

◆ Where it's heading

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.

◆ Prediction

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.

Alternatives to Proton Bridge and Superhuman

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 Proton Bridge or Superhuman.

See all Proton Bridge alternatives → · See all Superhuman alternatives →

Recent activity from Proton Bridge and Superhuman

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoProton BridgeBridge 3.26.0: macOS 27 crash fix and bounded RFC parser resources
  2. 20d agoSuperhumanMultiple email accounts in Claude, ChatGPT, and MCP 🤖
  3. 1mo agoSuperhumanAuto Drafts 2.0 ✨
  4. 1mo agoSuperhumanMulti-day views on iPhone & iPad 📆
  5. 1mo agoSuperhumanCalendar on Android 💚
  6. 1mo agoSuperhumanSuperhuman Mail Codex plugin 🤖
  7. 2mo agoSuperhumanPersonalize share availability ✨
  8. 2mo agoProton BridgeBridge 3.25.0: IMAP and sync fixes bundled with dependency updates
  9. 3mo agoProton BridgeBridge 3.24.2 patch with a single-line note
  10. 4mo agoProton BridgeBridge 3.24.1 patch with a single-line note
  11. 4mo agoProton BridgeBridge 3.24.0 Nescio feature cut
  12. 4mo agoProton BridgeBridge 3.23.1 patch on the Margit line

Frequently asked questions

What is the difference between Proton Bridge and Superhuman?

They serve adjacent needs but don't currently overlap on shipped themes. Superhuman is currently shipping more aggressively (velocity 7.5 vs 2.5), 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 Proton Bridge better than Superhuman?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Superhuman is currently shipping more aggressively (velocity 7.5 vs 2.5), with 1 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.

What are the best alternatives to Proton Bridge?

Top Proton Bridge alternatives in Comms are ranked by recent ship velocity. Browse the "Proton Bridge alternatives" section above for the current picks, or visit /alternatives/proton-bridge for the full list with editorial commentary on each.

What are the best alternatives to Superhuman?

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.