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Slack is listed from $7.25 with a free plan, but its channel-and-integration model does not suit every team. One Reddit thread complains about inconsistent navigation and integration noise; another describes a manager using Slack activity timestamps in a performance review. Those posts are anecdotes, not proof of how every workplace uses Slack. We’ve picked alternatives for different reasons to switch: more organized async conversations, a lower listed starting price, or deployment and data controls. Check each product’s limits before moving your team.
01Why people leave Slack
Navigation feels inconsistent
One Reddit thread describes different scroll directions in messages and recent DMs, making it harder to find conversations.
Integrations add message noise
A commenter on r/sysadmin says integration messages can clutter chat. Teams that want less integration-driven activity may prefer a simpler setup.
Activity can become a metric
A Reddit user says their manager brought Slack timestamps into a performance review. That is a reported workplace issue, not evidence of standard practice.
02The alternatives, ranked by fit
- Best for async chat
ZulipZulipZulip is the clearest fit if Slack’s stream of messages makes conversations hard to follow. It is built around organized async chat and topics, though the listing warns that topics bring a learning curve. The listed starting price is $3.50, with a free plan, and self-hosting is also an option for organizations that want it.
Trade-off: Teams may need time to adjust to topics; check plan details before switching.
7.8/10from
$3.50/mofree plan - Best for budget chat
PumblePumblePumble is a practical place to start if your main goal is lower-cost team chat rather than a broader collaboration suite. It has a free plan and is listed from $2.49. The listing highlights message history and meetings, but advises checking storage, integration, and meeting limits against your team’s needs.
Trade-off: Check storage, integration, and meeting limits before moving everyone.
7.1/10from
$2.49/mofree plan - Best for self-hosting
ElementElementElement is worth considering when deployment control matters more than a familiar Slack-style setup. Its listed strengths include self-hosting, cross-organization federation, and air-gapped deployments. There is a free plan, but the paid starting price is not published, so get a quote and clarify support costs before treating it as a budget replacement.
Trade-off: Paid pricing and support details are not published.
6.5/10from
Freefree plan - Best for data control
MattermostMattermostMattermost suits organizations that need self-hosted collaboration, strict data controls, or workflows for incident playbooks. Those are more specific reasons to switch than simply wanting a cheaper chat app. The listing includes a free plan, but paid pricing is not published and notes that free-tier changes have frustrated some users.
Trade-off: Paid pricing is opaque, and users have raised concerns about free-tier changes.
6.0/10from
Freefree plan - Best for bundled tools
LarkLarkLark is a fit for teams that want chat alongside documents, meetings, and workflows rather than another standalone messenger. It has a free plan and is listed from $6. That starting price may look attractive, but the listing warns that plan limits and add-ons can change the cost as teams grow.
Trade-off: Plan limits and add-ons can raise the cost.
7.3/10from
$6/mofree plan - Best for encrypted chat
WireWireWire is aimed at teams prioritizing encrypted chat, SSO and SCIM, or on-premises deployment. It has a free plan and is listed from $7.45, close to Slack’s listed $7.25 starting price. Consider it for those security and deployment requirements, not as an automatic cost-saving move.
Trade-off: Pricing for larger deployments and support is not published.
7.5/10from
€7.45/mofree plan - Best for notes and to-dos
FlockFlockFlock may suit a small team that wants free team chat with shared notes and to-dos. Its listed starting price is $4.50, with a free plan. Before switching, check whether the Starter caps fit your team; the listing also flags annual PRO billing, so confirm the billing terms that apply.
Trade-off: Starter caps may not fit, and PRO billing is annual.
7.1/10from
$4.50/mofree plan
03Side by side
| Tool | Score | From | Free plan | Best for |
|---|---|---|---|---|
 Slack Slack (current) | 6.8 | $7.25/mo | Yes | Teams that rely on channels and integrations |
| Zulip Zulip | 7.8 | $3.50/mo | Yes | Teams that prefer async conversations |
| Pumble Pumble | 7.1 | $2.49/mo | Yes | Small teams wanting free chat |
| Element Element | 6.5 | Free | Yes | Organizations that need self-hosting |
| Mattermost Mattermost | 6.0 | Free | Yes | Teams needing self-hosted collaboration |
| Lark Lark | 7.3 | $6/mo | Yes | Teams consolidating chat and collaboration |
| Wire Wire | 7.5 | €7.45/mo | Yes | Small teams prioritizing encrypted chat |
| Flock Flock | 7.1 | $4.50/mo | Yes | Small teams wanting free team chat |
Questions people ask
What is the best Slack alternative?
It depends on why you are leaving. Zulip is listed for organized async chat, Pumble for budget-conscious team messaging, and Element or Mattermost for self-hosting and data control. If you want chat bundled with documents, meetings, and workflows, Lark is another option. Compare limits and deployment needs before choosing.
What is the cheapest Slack alternative?
Among the alternatives here with a listed numeric starting price, Pumble is lowest at $2.49 and includes a free plan. Zulip is listed from $3.50, and Flock from $4.50, also with free plans. These starting prices do not establish which plan will fit your team; check the limits and billing terms.
Which Slack alternatives can be self-hosted?
Element, Mattermost, and Zulip are listed as self-hosting options. Element also lists cross-organization federation and air-gapped deployments; Mattermost highlights strict data controls; Zulip is listed for organizations wanting self-hosting. Element’s and Mattermost’s paid pricing is not published, so ask about costs and support before planning a migration.