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Twilio follows Cohorts with three GA control APIs for webhooks, recording and caller trust.
Alternatives · team communication tools
Slack alternatives
The best Slack alternatives in team communication tools, ranked by Sparkpulse's velocity_score.
Updated Oct 29, 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 1mo 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
Chatwoot retires Captain V1 and rebuilds its AI assistant as a structured, per-assistant behavior system.
COMMS
Respond.io upgraded its AI Agents to GPT-5.6 and added TikTok Business Messaging for US accounts.
COMMS
Fonoster ships four releases in a day to make linking a Twilio number a single step.
COMMS
Zoho Cliq is opening its bot platform to AI coding agents through MCP tools.
COMMS
FluentBooking opens bookings to AI agents via MCP, then ships workflow ergonomics
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
Element 1.12.33 ships: simpler recovery keys, mandatory verification, no libolm migration.
SUPPORT
tawk.to's widget 4.4.0 turns to keyboard and screen-reader fixes after a run of form work.
COMMS
Krisp 2.83.4 brings Voice Translation into conference calls and lightens Accent Conversion.
COMMS
Pixelfed 0.15.2 ships the PHP RCE patches and turns cached timelines on for everyone.
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 |
| Twilio | 7.5 | 1 | messagingaudience-segmentationvoice-trust | Twilio Cohorts for Native List Building and Bulk Messaging |
| Chatwoot | 7.5 | 0 | ai-assistantcustomer-supportwhatsapp | Captain V1 is retiring: every account moves to the new Captain |
| Respond.io | 7.5 | 0 | customer-messagingai-agentsomnichannel | — |
| Fonoster | 6.3 | 0 | programmable-voicesiptwilio | — |
| Zoho Cliq | 6.3 | 0 | zoho-suitedeveloper-platformmcp | Mix-and-match plans let each role pay for what it uses |
| FluentBooking | 6.3 | 0 | ai-agentsmcp-integrationscheduling | Introducing MCP for AI Agents – FluentBooking 2.4.0 |
| Stalwart | 6.3 | 0 | email-serverscimjmap | v0.16.20 |
| Bandwidth | 6.3 | 0 | voipcommunications-apircs | Identity Presentation – Beta |
| Element | 5.0 | 0 | encryptionrecovery-keysdevice-verification | — |
| Tawk.to | 5.0 | 0 | live-chatcustomer-supportwidget | — |
| Krisp | 5.0 | 0 | call-center-aivoice-translationaccent-conversion | Krisp Call Center AI goes free-to-try; alerts land in Slack and Teams |
| Pixelfed | 5.0 | 0 | fediverseactivitypubphoto-sharing | — |
The 12 best Slack alternatives, in depth
1. Twilio · velocity 7.5
Twilio follows Cohorts with three GA control APIs for webhooks, recording and caller trust.
Over the last 30 days Twilio shipped 1 meaningful update vs Slack's 0, most recently “Twilio Cohorts for Native List Building and Bulk Messaging”. Its velocity score of 7.5/10 blends that with longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Twilio focuses on messaging, audience segmentation and voice trust.
Over the last 30 days Twilio has been shipping faster than Slack — a point in its favour if release momentum matters to you.
2. Chatwoot · velocity 7.5
Chatwoot retires Captain V1 and rebuilds its AI assistant as a structured, per-assistant behavior system.
Its velocity score of 7.5/10 reflects longer-term release cadence; its most recent meaningful update was “Captain V1 is retiring: every account moves to the new Captain”.
Where Slack leans on agents, mcp and developer platform, Chatwoot focuses on ai assistant, customer support 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.
3. 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 →
4. Fonoster · velocity 6.3
Fonoster ships four releases in a day to make linking a Twilio number a single step.
Its velocity score of 6.3/10 reflects longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Fonoster focuses on programmable voice, sip and twilio.
Fonoster and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
5. Zoho Cliq · velocity 6.3
Zoho Cliq is opening its bot platform to AI coding agents through MCP tools.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Mix-and-match plans let each role pay for what it uses”.
Where Slack leans on agents, mcp and developer platform, Zoho Cliq focuses on zoho suite, developer platform and mcp.
Zoho Cliq and Slack 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 opens bookings to AI agents via MCP, then ships workflow ergonomics.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “Introducing MCP for AI Agents – FluentBooking 2.4.0”.
Where Slack leans on agents, mcp and developer platform, FluentBooking focuses on ai agents, mcp integration and scheduling.
FluentBooking and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
Full FluentBooking trajectory → · Compare Slack 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.
Its velocity score of 6.3/10 reflects longer-term release cadence; its most recent meaningful update was “v0.16.20”.
Where Slack leans on agents, mcp and developer platform, Stalwart focuses on email server, scim and jmap.
Stalwart and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
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. Element · velocity 5.0
Element 1.12.33 ships: simpler recovery keys, mandatory verification, no libolm migration.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Element focuses on encryption, recovery keys and device verification.
Element and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
10. Tawk.to · velocity 5.0
Tawk.to's widget 4.4.0 turns to keyboard and screen-reader fixes after a run of form work.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Tawk.to focuses on live chat, customer support and widget.
Tawk.to and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
11. Krisp · velocity 5.0
Krisp 2.83.4 brings Voice Translation into conference calls and lightens Accent Conversion.
Its velocity score of 5.0/10 reflects longer-term release cadence; its most recent meaningful update was “Krisp Call Center AI goes free-to-try; alerts land in Slack and Teams”.
Where Slack leans on agents, mcp and developer platform, Krisp focuses on call center ai, voice translation and accent conversion.
Krisp and Slack have shipped at a similar pace over the last 30 days, so the decision comes down to fit and feature depth.
12. Pixelfed · velocity 5.0
Pixelfed 0.15.2 ships the PHP RCE patches and turns cached timelines on for everyone.
Its velocity score of 5.0/10 reflects longer-term release cadence.
Where Slack leans on agents, mcp and developer platform, Pixelfed focuses on fediverse, activitypub and photo sharing.
Pixelfed and Slack 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 Slack?
The top Slack alternatives we currently track in team communication tools are Twilio, Chatwoot, Respond.io, Fonoster, 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.