Slack Review
BUSINESS COMMUNICATIONS SOFTWAREChoose Slack when internal team messaging is the job to be done and you want freemium channels with a deep integration ecosystem — pair it with a phone vendor if you also need PSTN.
Starting price
$7.25/user/month
Free plan
Yes
Free trial
No
Best for
Knowledge-worker teams that need channel-based team messaging as the primary collaboration hub
SoftwareGlimpse review
6.7/10
Average
- ease of use9
- voice messaging quality5
- routing workflows4
- integrations10
- analytics6
- outbound tools2
Best Slack alternatives
Alternatives are drawn from the product graph and editorial comparisons — not paid placements.
Microsoft Teams
Researched side-by-side comparison of Microsoft Teams and Slack using business-communications comparison criteria (factual pricing/coverage plus editorial judgments). No universal winner — choose by criterion fit.
From $0.00/user/month
Organisations standardised on Microsoft 365
Zenzap
Researched side-by-side comparison of Slack and Zenzap using business-communications comparison criteria (factual pricing/coverage plus editorial judgments). No universal winner — choose by criterion fit.
From $3.00/user/month
Frontline and multi-site teams replacing WhatsApp groups for work chat
Zoom
Meetings-first Workplace suite plus Zoom Phone UCaaS — Phone US/CA Unlimited research floor ~$15–16/user/month; free meetings/chat exist but Phone is paid.
From $15.00/user/month
Alternatives comparison at a glance
| Product | Starting price | Free plan | Free trial |
|---|---|---|---|
| Slack | $7.25/user/month | Yes | No |
| Microsoft Teams | $0.00/user/month | Yes | Yes |
| Zenzap | $3.00/user/month | Yes | No |
| Zoom | $15.00/user/month | Yes | Yes |
How we choose alternatives
Based on our recommendations
Alternatives come from product relationships and documented capability overlap.
Focused on your needs
We highlight when another tool fits a different workflow better.
Independently evaluated
Affiliate relationships never decide who appears here.