shouldiuse.io

New check

Comparison

Groups.io vs Slack

Groups.io lands on Worth it, and Slack lands on Depends.

Groups.io

groups.io

Worth it
Confidence: Medium

Buy if you run a community, HOA, nonprofit, or fan group that lives on email discussion . it is cheap, ad-free, and well supported.

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Groups.io versus Slack
CompareGroups.ioSlack
VerdictWorth itDepends
Best forHOAs and neighborhood groupsDistributed teams coordinating in channels
Who it's not forSmall teams wanting internal chat . use Slack or Discord insteadSolo founders or 1-3 person teams . platform weight is overkill
PrivacyNo known public vulnerabilities found in the sources reviewed.⁵No known public vulnerabilities found in the sources reviewed.13
Support qualityLong-time users call support excellentNo support evidence in sources reviewed
Public sentimentUsers praise as a solid, ad-free hosted listserv with excellent support; critics flag member-email visibility and the paid-tier minimum.³No independent user reviews were found in the sources reviewed.
Biggest gotchaPricing cliff: free ends at 100 members, then $20/month minimum applies.²Guess: Enterprise Key Management is likely a paid add-on . confirm before budgeting.13

Pick Groups.io when

  • HOAs and neighborhood groups
  • Nonprofits and community organizations
  • Hobbyist and user communities
  • Academic research networks

When Groups.io is not a fit

  • Small teams wanting internal chat . use Slack or Discord instead
  • Anyone needing member anonymity . emails are visible to the group
  • Companies that only need distribution lists . Google Groups is free
  • Chat-first communities that will never check email threads

Pick Slack when

  • Distributed teams coordinating in channels
  • Sales teams wanting Salesforce in chat
  • Orgs needing admin and security controls
  • Teams automating routine workflows

When Slack is not a fit

  • Solo founders or 1-3 person teams . platform weight is overkill
  • Buyers who need clear self-serve pricing upfront
  • Orgs already standardized on Microsoft Teams
  • Anyone who just needs basic group chat, not a platform

Sources

  1. Groups.io | Email Discussion Groups & Listserv Alternativegroups.io
    official
  2. Best Groups.io Alternative for Email Groups (2026) . Gaggle Mailgaggle.email
    review
  3. groups.io is decent if you're looking for hosted solutions . Hacker Newsnews.ycombinator.com
    review
  4. Groups.io Alternative with True Member Privacy . EMail Parrotemparrot.com
    security
  5. Groups.io Security pagegroups.io
    security
  6. What is groups.io and how do I use it? . American Universitywastedfood.american.edu
    news
  7. The Best Google Groups Alternatives . Keepingkeeping.com
    review
  8. Emails moving from Sympa listserv to Google Groups . Case Observerobserver.case.edu
    news
  9. Google groups alternatives? . Ask MetaFilterask.metafilter.com
    review
  10. Top 10 Groups IO Alternatives & Competitors in 2026 . G2g2.com
    review
  11. Groups.io - a Functional Replacement for Yahoo!Groupsblindmapmaker.wordpress.com
    review
  12. Virtual CRASH Users Group on Groups.io . LinkedInlinkedin.com
    news
  13. Slack security pageslack.com
    security