COMMS
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
Slack alternatives
The best Slack alternatives in team communication tools, ranked by Sparkpulse's velocity_score.
Updated Sep 25, 2026
Looking for the best alternatives to Slack? 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, Slack shipped 0 meaningful updates in the last 30 days and carries a velocity score of 6.3 out of 10 in 2026. The alternatives below are ranked the same way, so you're comparing real release momentum, not marketing claims.
About Slack
Slack raises the Marketplace bar back to ten installs while the agent platform consolidates.
Slack's developer platform runs two tracks. The agent build-out has produced a spark roughly every two weeks since June — MCP client, a skills plugin targeting Claude Code and Cursor, and Slack Code — and now has a consolidation date attached: assistant_view is deprecated in February 2027, replaced by an Agent Sessions API. The second track is platform administration and tooling, and this window belongs to it: Marketplace submissions again require at least ten installed active workspaces, held throughout the review, after a period at a lower temporary threshold. The CLI has shipped three times since late July.
Velocity 6.3 · Last update 24d ago
Top 12 alternatives to Slack
Ranked by recent ship velocity. Tap any card for the full editorial breakdown, or pivot to a head-to-head.
COMMS
Respond.io upgraded its AI Agents to GPT-5.6 and added TikTok Business Messaging for US accounts.
COMMS
FluentBooking opens bookings to AI agents via MCP, then ships workflow ergonomics
SUPPORT
Twilio expands Salesforce integration to WhatsApp and SMS while adding transcription failover
COMMS
Cliq 7.0 turns a messaging app into an AI-threaded work surface, and the follow-on releases are expanding its reach.
COMMS
Superhuman rebuilt its mobile apps and wired every inbox into AI assistants — the email client is becoming a suite.
COMMS
Stalwart adds full SCIM v2 provisioning and 24-language calendar support as its standards coverage extends further than most commercial mail servers.
COMMS
Bandwidth ships Identity Presentation (branded calling) in beta — trust layer for enterprise outbound calling.
COMMS
Rocket.Chat finishes the 8.8 calling work while the licence wall for SSO gets a date.
COMMS
Netcore launches Cori, an AI marketing agent that monitors channels and finds revenue gaps automatically.
COMMS
Salesmsg deepens HubSpot automation while AI agents gain autonomous action across text and calling
COMMS
Signal Desktop is in a quiet maintenance cycle — granular notification controls are the only user-facing addition in two months of beta releases.
Slack 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 |
|---|---|---|---|---|
| Slack (baseline) | 6.3 | 0 | agentsmcpdeveloper-platform | Announcing Slack Code |
| Chatwoot | 7.5 | 0 | ai-supportcaptain-aiwhatsapp | Faster macros and improved pickers |
| Respond.io | 7.5 | 0 | customer-messagingai-agentsomnichannel | — |
| FluentBooking | 6.3 | 1 | ai-agentsmcp-integrationscheduling | Introducing MCP for AI Agents – FluentBooking 2.4.0 |
| Twilio | 6.3 | 1 | enterprise-commsomnichannelsalesforce-integration | Twilio integration with Salesforce Service Cloud Voice is now Omnichannel |
| Zoho Cliq | 6.3 | 1 | team-messagingai-assistantzoho-ecosystem | AI that moves work forward: Inside Zoho Cliq 7.0 |
| Superhuman | 6.3 | 1 | ai-draftingcalendar-integrationmcp | Superhuman Mail for iOS & Android 📱 |
| Stalwart | 6.3 | 1 | email-serverscimjmap | v0.16.20 |
| Bandwidth | 6.3 | 0 | voipcommunications-apircs | Identity Presentation – Beta |
| Rocket.Chat | 6.3 | 0 | team-chatvoice-callingscreen-sharing | 8.8.0-rc.0: LDAP/SAML go Premium in 9.0, forced private-room E2EE |
| Netcore Cloud | 5.0 | 0 | ai-marketing-agentcustomer-engagementd2c | — |
| Salesmsg | 5.0 | 0 | smsai-agentscrm-integration | — |
| Signal Desktop | 5.0 | 0 | privacy-messagingend-to-end-encryptionbeta-cycle | — |
The 12 best Slack 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.
Its velocity score of 7.5/10 reflects longer-term release cadence; its most recent meaningful update was “Faster macros and improved pickers”.
Where Slack leans on agents, mcp and developer platform, Chatwoot focuses on ai support, captain ai and whatsapp.
Chatwoot and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
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 Slack leans on agents, mcp and developer platform, Respond.io focuses on customer messaging, ai agents and omnichannel.
Respond.io and Slack 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 Slack vs Respond.io →
3. FluentBooking · velocity 6.3
FluentBooking opens bookings to AI agents via MCP, then ships workflow ergonomics.
Over the last 30 days FluentBooking shipped 1 meaningful update vs Slack'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 Slack leans on agents, mcp and developer platform, FluentBooking focuses on ai agents, mcp integration and scheduling.
Over the last 30 days FluentBooking has been shipping faster than Slack — a point in its favour if release momentum matters to you.
Full FluentBooking trajectory → · Compare Slack vs FluentBooking →
4. Twilio · velocity 6.3
Twilio expands Salesforce integration to WhatsApp and SMS while adding transcription failover.
Over the last 30 days Twilio shipped 1 meaningful update vs Slack's 0, most recently “Twilio integration with Salesforce Service Cloud Voice is now Omnichannel”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Twilio focuses on enterprise comms, omnichannel and salesforce integration.
Over the last 30 days Twilio has been shipping faster than Slack — a point in its favour if release momentum matters to you.
5. Zoho Cliq · velocity 6.3
Cliq 7.0 turns a messaging app into an AI-threaded work surface, and the follow-on releases are expanding its reach.
Over the last 30 days Zoho Cliq shipped 1 meaningful update vs Slack'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 Slack leans on agents, mcp and developer platform, Zoho Cliq focuses on team messaging, ai assistant and zoho ecosystem.
Over the last 30 days Zoho Cliq has been shipping faster than Slack — a point in its favour if release momentum matters to you.
6. 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 Slack's 0, most recently “Superhuman Mail for iOS & Android 📱”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Superhuman focuses on ai drafting, calendar integration and mcp.
Over the last 30 days Superhuman has been shipping faster than Slack — a point in its favour if release momentum matters to you.
Full Superhuman trajectory → · Compare Slack vs Superhuman →
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 Slack's 0, most recently “v0.16.20”. Its velocity score of 6.3/10 blends that with longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Stalwart focuses on email server, scim and jmap.
Over the last 30 days Stalwart has been shipping faster than Slack — 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 Slack leans on agents, mcp and developer platform, Bandwidth focuses on voip, communications api and rcs.
Bandwidth and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
9. Rocket.Chat · velocity 6.3
Rocket.Chat finishes the 8.8 calling work while the licence wall for SSO gets a date.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “8.8.0-rc.0: LDAP/SAML go Premium in 9.0, forced private-room E2EE”.
Where Slack leans on agents, mcp and developer platform, Rocket.Chat focuses on team chat, voice calling and screen sharing.
Rocket.Chat and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Rocket.Chat trajectory → · Compare Slack vs Rocket.Chat →
10. Netcore Cloud · velocity 5.0
Netcore launches Cori, an AI marketing agent that monitors channels and finds revenue gaps automatically.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Netcore Cloud focuses on ai marketing agent, customer engagement and d2c.
Netcore Cloud and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Netcore Cloud trajectory → · Compare Slack vs Netcore Cloud →
11. Salesmsg · velocity 5.0
Salesmsg deepens HubSpot automation while AI agents gain autonomous action across text and calling.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Salesmsg focuses on sms, ai agents and crm integration.
Salesmsg and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
12. Signal Desktop · velocity 5.0
Signal Desktop is in a quiet maintenance cycle — granular notification controls are the only user-facing addition in two months of beta releases.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Signal Desktop focuses on privacy messaging, end to end encryption and beta cycle.
Signal Desktop and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full Signal Desktop trajectory → · Compare Slack vs Signal Desktop →
Frequently asked questions
What are the best alternatives to Slack?
The top Slack alternatives we currently track in team communication tools are Chatwoot, Respond.io, FluentBooking, Twilio, Zoho Cliq, ranked by recent ship velocity.
How is this list of Slack alternatives ranked?
Alternatives are ranked by Sparkpulse's velocity_score — release cadence + 30-day spark count + sector-relative ship rate.
Can I compare Slack directly with one of these alternatives?
Yes — every card has a "Compare with Slack" link to a side-by-side /compare page.