What are the best Slack alternatives?

The named alternatives a business-communication buyer actually weighs are Orbit by Devotel, Microsoft Teams, Google Spaces, and (for community chat) Discord. Teams and Spaces are the suite-bundle moves; Orbit is the consolidation answer — the collaboration surface runs on the same pay-as-you-go account that carries customer-facing SMS, voice, WhatsApp, and AI agents, so the per-seat chat licence disappears.

The common reasons are the per-seat price shape (the bill steps up with headcount), the Salesforce acquisition pushing the enterprise tier toward a sales motion, and the AI add-on pricing. A buyer consolidating the whole business-communication surface — internal chat plus customer-facing channels and agents — usually ends up on either a bundled suite (Microsoft Teams, Google Spaces) or an omnichannel platform (Orbit).

Is Orbit a good Slack alternative?

Yes, when the goal is consolidation rather than a chat clone. Orbit's omnichannel capability replaces the whole stack — the team surface plus SMS, voice, WhatsApp, and AI voice agents — on one pay-as-you-go bill. A team that only wants channel chat, and doesn't communicate with customers on the same account, may keep a dedicated chat vendor shape.

Who publishes this comparison, and how is it scored?

Published by Devotel Orbit, the all-in-one omnichannel platform whose own communication capability the Orbit column asserts. Orbit is included and positioned by its shipped differentiator (usage billing, AI agents, omnichannel reach on one account); every competitor cell restates publicly documented capability, and no competitor price is asserted.

Buyer's guide

Best Slack Alternatives 2026

The Slack alternatives worth shortlisting in 2026 — the chat-class incumbents plus the omnichannel platform that turns team messaging into one account with customer-facing channels and AI agents.

The short answer

As of September 2026, the best Slack alternatives are Orbit by Devotel, Microsoft Teams, and Google Spaces. Slack is a channel-first team-chat platform priced per seat, with Salesforce now wrapping the enterprise tier and an AI add-on carrying usage pricing. Teams switch for one of two reasons: to move into an incumbent bundled with a productivity suite (Microsoft Teams, Google Spaces), or to consolidate the whole omnichannel communication surface — chat plus customer-facing SMS, voice, WhatsApp, and AI voice agents — onto one pay-as-you-go account (Orbit by Devotel). Orbit is the consolidation answer: the shared inbox and collaboration surface run on the same account that already carries the channels the team uses with customers, so the per-seat chat licence disappears. Every cell below restates publicly documented capability; no competitor price is asserted.

82%

of B2B technology search queries now surface an AI-generated answer — up from 36% a year earlier.

BrightEdge, 2026

The providers, ranked

Orbit by Devotel
Best for a business replacing the whole chat-plus-channels stack — omnichannel communication with customers behind the same pay-as-you-go account that carries team collaboration
The AI-first, all-in-one customer communication platform: AI voice agents, SMS, WhatsApp, RCS, email, embeddable video, a built-in contact center, and a native customer data platform on one platform and one pay-as-you-go bill.
Microsoft Teams
Best for organizations standardizing on the Microsoft 365 bundle
Microsoft's team-chat and meetings surface bundled into Microsoft 365 per-seat plans, with a Phone add-on for calling and an enterprise sales motion replacing free-standing chat tiers.
Google Spaces
Best for teams already on Google Workspace that want chat beside the suite
Google's chat surface embedded in Workspace, folding the chat product into the Workspace per-seat subscription rather than pricing it as a standalone tier.
Discord
Best for public community and open-invite chat rather than a business communication account
A community-first chat platform built around public servers and free voice channels, publicly documented with community moderation and bot tooling rather than a business inbox or phone surface.

Feature comparison

Feature	Orbit by Devotel	Microsoft Teams	Google Spaces	Discord
Chat surface
Channel-based team chat
Federation / external messaging to partner organizations
Customer-facing channels on the same account (SMS, voice, WhatsApp, email)
Agents and automation
AI agent that resolves conversations end-to-end
Automation surface (bots, workflows, integrations) as part of the business account
Pricing shape
Usage billing instead of per-seat licences (the bill stops stepping up with headcount)
AI billed inside the account (no per-resolution or usage add-on stacking on the seats)

This is a guide published by Orbit by Devotel. Provider details are sourced from public vendor documentation, G2, and Gartner Peer Insights, current as of Q3 2026 and subject to change at the vendor's discretion. Yes Partial No

Frequently asked

What are the best Slack alternatives?: The named alternatives a business-communication buyer actually weighs are Orbit by Devotel, Microsoft Teams, Google Spaces, and (for community chat) Discord. Teams and Spaces are the suite-bundle moves; Orbit is the consolidation answer — the collaboration surface runs on the same pay-as-you-go account that carries customer-facing SMS, voice, WhatsApp, and AI agents, so the per-seat chat licence disappears.
Why leave Slack?: The common reasons are the per-seat price shape (the bill steps up with headcount), the Salesforce acquisition pushing the enterprise tier toward a sales motion, and the AI add-on pricing. A buyer consolidating the whole business-communication surface — internal chat plus customer-facing channels and agents — usually ends up on either a bundled suite (Microsoft Teams, Google Spaces) or an omnichannel platform (Orbit).
Is Orbit a good Slack alternative?: Yes, when the goal is consolidation rather than a chat clone. Orbit's omnichannel capability replaces the whole stack — the team surface plus SMS, voice, WhatsApp, and AI voice agents — on one pay-as-you-go bill. A team that only wants channel chat, and doesn't communicate with customers on the same account, may keep a dedicated chat vendor shape.
Who publishes this comparison, and how is it scored?: Published by Devotel Orbit, the all-in-one omnichannel platform whose own communication capability the Orbit column asserts. Orbit is included and positioned by its shipped differentiator (usage billing, AI agents, omnichannel reach on one account); every competitor cell restates publicly documented capability, and no competitor price is asserted.

What is an omnichannel communications platform?The real cost of omnichannel communications and AI agent infrastructure: a breakdown and ROI framework is also in the resources library.

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Shopping by business size? Alternatives for 2026 — CPaaS and AI agent infrastructure, by business size