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Chatwoot is building an AI-first support platform, with Captain gaining audience targeting and macro automation reaching the keyboard-native workflow.
Alternatives · team communication tools
Gromox alternatives
The best Gromox alternatives in team communication tools, ranked by Sparkpulse's velocity_score.
Updated Sep 16, 2026
Looking for the best alternatives to Gromox? Sparkpulse tracks and ranks 12 alternatives in team communication tools by shipping velocity — how frequently each ships meaningful updates, verified from official changelogs. For reference, Gromox shipped 0 meaningful updates in the last 30 days and carries a velocity score of 2.5 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About Gromox
Gromox keeps closing the gap with Exchange one protocol surface at a time — this round it's IMAP flags and Outlook for Mac.
Gromox ships a numbered release roughly monthly, each a mix of Exchange-protocol enhancements and fixes across emsmdb, EWS, IMAP, and the store layer. Version 3.10 makes midb synchronize IMAP message flags to and from the mailbox so they survive deletion of midb.sqlite3, adds IMAP keyword support, teaches EWS the Outlook-for-Mac smart response draft types, extends FindPeople and GetUserPhoto to personal contacts, and adds a short-TTL cache for recurring user ID and group membership lookups.
Velocity 2.5 · Last update 21d ago
Top 12 alternatives to Gromox
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
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Respond.io upgraded its AI Agents to GPT-5.6 and added TikTok Business Messaging for US accounts.
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Superhuman rebuilt its mobile apps and wired every inbox into AI assistants — the email client is becoming a suite.
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Zoho Cliq 7.0 bets on AI conversation summaries and Neat hardware to close the gap with enterprise messaging platforms
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Salesmsg now runs the entire sales-to-NPS loop in one thread — outbound, AI reply, booking, survey, and routing.
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FluentBooking 2.4.0 opens the booking system to AI agents via MCP — the most directional release since the plugin launched.
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Stalwart adds full SCIM v2 provisioning and 24-language calendar support as its standards coverage extends further than most commercial mail servers.
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Bandwidth ships Identity Presentation (branded calling) in beta — trust layer for enterprise outbound calling.
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Slack raises the Marketplace bar back to ten installs while the agent platform consolidates.
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Rocket.Chat finishes the 8.8 calling work while the licence wall for SSO gets a date.
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The final v1.x release slipped by one patch, but the v2 deadline stands.
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Element rebuilds its timeline with MVVM architecture while cutting legacy OS support in v1.12.28.
Gromox vs alternatives — shipping velocity at a glance
Velocity score (0–10) and meaningful releases shipped in the last 30 days, from official changelogs. Higher = shipping faster.
| Product | Velocity | Sparks · 30d | Focus areas | Latest release |
|---|---|---|---|---|
| Gromox (baseline) | 2.5 | 0 | groupwareexchange-compatibilityews | 3.6 lands the full EWS meeting, delegate and task surface |
| Chatwoot | 7.5 | 2 | ai-supportcaptain-aiwhatsapp | Faster macros and improved pickers |
| Respond.io | 7.5 | 0 | customer-messagingai-agentsomnichannel | — |
| Superhuman | 6.3 | 1 | ai-draftingcalendar-integrationmcp | Superhuman Mail for iOS & Android 📱 |
| Zoho Cliq | 6.3 | 1 | ai-messagingenterprise-collaborationzoho-suite | AI that moves work forward: Inside Zoho Cliq 7.0 |
| Salesmsg | 6.3 | 0 | sms-salesai-agentscustomer-feedback | Collect and Act on Customer Feedback Right Inside Salesmsg with Surveys |
| FluentBooking | 6.3 | 1 | mcpai-agentsbooking | Introducing MCP for AI Agents – FluentBooking 2.4.0 |
| Stalwart | 6.3 | 1 | email-serverscimjmap | v0.16.20 |
| Bandwidth | 6.3 | 0 | voipcommunications-apircs | Identity Presentation – Beta |
| Slack | 6.3 | 1 | agentsmcpdeveloper-platform | Announcing Slack Code |
| Rocket.Chat | 6.3 | 1 | team-chatvoice-callingscreen-sharing | 8.8.0-rc.0: LDAP/SAML go Premium in 9.0, forced private-room E2EE |
| Apprise | 6.3 | 1 | notificationsmajor-versiondeprecation | Last release of the v1.x line — pin before v2 breaks |
| Element | 5.0 | 0 | matrixopen-sourcemessaging | — |
The 12 best Gromox alternatives, in depth
1. Chatwoot · velocity 7.5
Chatwoot is building an AI-first support platform, with Captain gaining audience targeting and macro automation reaching the keyboard-native workflow.
Over the last 30 days Chatwoot shipped 2 meaningful updates vs Gromox's 0, most recently “Faster macros and improved pickers”. Its velocity score of 7.5/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Chatwoot focuses on ai support, captain ai and whatsapp.
Over the last 30 days Chatwoot has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
2. Respond.io · velocity 7.5
Respond.io upgraded its AI Agents to GPT-5.6 and added TikTok Business Messaging for US accounts.
Its velocity score of 7.5/10 reflects longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Respond.io focuses on customer messaging, ai agents and omnichannel.
Respond.io and Gromox have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Respond.io trajectory → · Compare Gromox vs Respond.io →
3. Superhuman · velocity 6.3
Superhuman rebuilt its mobile apps and wired every inbox into AI assistants — the email client is becoming a suite.
Over the last 30 days Superhuman shipped 1 meaningful update vs Gromox's 0, most recently “Superhuman Mail for iOS & Android 📱”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Superhuman focuses on ai drafting, calendar integration and mcp.
Over the last 30 days Superhuman has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
Full Superhuman trajectory → · Compare Gromox vs Superhuman →
4. Zoho Cliq · velocity 6.3
Zoho Cliq 7.0 bets on AI conversation summaries and Neat hardware to close the gap with enterprise messaging platforms.
Over the last 30 days Zoho Cliq shipped 1 meaningful update vs Gromox's 0, most recently “AI that moves work forward: Inside Zoho Cliq 7.0”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Zoho Cliq focuses on ai messaging, enterprise collaboration and zoho suite.
Over the last 30 days Zoho Cliq has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
5. Salesmsg · velocity 6.3
Salesmsg now runs the entire sales-to-NPS loop in one thread — outbound, AI reply, booking, survey, and routing.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Collect and Act on Customer Feedback Right Inside Salesmsg with Surveys”.
Where Gromox leans on groupware, exchange compatibility and ews, Salesmsg focuses on sms sales, ai agents and customer feedback.
Salesmsg and Gromox have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
6. FluentBooking · velocity 6.3
FluentBooking 2.4.0 opens the booking system to AI agents via MCP — the most directional release since the plugin launched.
Over the last 30 days FluentBooking shipped 1 meaningful update vs Gromox's 0, most recently “Introducing MCP for AI Agents – FluentBooking 2.4.0”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, FluentBooking focuses on mcp, ai agents and booking.
Over the last 30 days FluentBooking has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
Full FluentBooking trajectory → · Compare Gromox vs FluentBooking →
7. Stalwart · velocity 6.3
Stalwart adds full SCIM v2 provisioning and 24-language calendar support as its standards coverage extends further than most commercial mail servers.
Over the last 30 days Stalwart shipped 1 meaningful update vs Gromox's 0, most recently “v0.16.20”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Stalwart focuses on email server, scim and jmap.
Over the last 30 days Stalwart has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
8. Bandwidth · velocity 6.3
Bandwidth ships Identity Presentation (branded calling) in beta — trust layer for enterprise outbound calling.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Identity Presentation – Beta”.
Where Gromox leans on groupware, exchange compatibility and ews, Bandwidth focuses on voip, communications api and rcs.
Bandwidth and Gromox have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
9. Slack · velocity 6.3
Slack raises the Marketplace bar back to ten installs while the agent platform consolidates.
Over the last 30 days Slack shipped 1 meaningful update vs Gromox's 0, most recently “Announcing Slack Code”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Slack focuses on agents, mcp and developer platform.
Over the last 30 days Slack has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
10. Rocket.Chat · velocity 6.3
Rocket.Chat finishes the 8.8 calling work while the licence wall for SSO gets a date.
Over the last 30 days Rocket.Chat shipped 1 meaningful update vs Gromox's 0, most recently “8.8.0-rc.0: LDAP/SAML go Premium in 9.0, forced private-room E2EE”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Rocket.Chat focuses on team chat, voice calling and screen sharing.
Over the last 30 days Rocket.Chat has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
Full Rocket.Chat trajectory → · Compare Gromox vs Rocket.Chat →
11. Apprise · velocity 6.3
The final v1.x release slipped by one patch, but the v2 deadline stands.
Over the last 30 days Apprise shipped 1 meaningful update vs Gromox's 0, most recently “Last release of the v1.x line — pin before v2 breaks”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Apprise focuses on notifications, major version and deprecation.
Over the last 30 days Apprise has been shipping faster than Gromox — a point in its favour if release momentum matters to you.
12. Element · velocity 5.0
Element rebuilds its timeline with MVVM architecture while cutting legacy OS support in v1.12.28.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Gromox leans on groupware, exchange compatibility and ews, Element focuses on matrix, open source and messaging.
Element and Gromox have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Frequently asked questions
What are the best alternatives to Gromox?
The top Gromox alternatives we currently track in team communication tools are Chatwoot, Respond.io, Superhuman, Zoho Cliq, Salesmsg, ranked by recent ship velocity.
How is this list of Gromox alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare Gromox directly with one of these alternatives?
Yes — every card has a "Compare with Gromox" link to a side-by-side /compare page.