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The bottom line
Good for email-first groups; less compelling if you need collaboration tools on the free plan.
Groups.io keeps email discussions at the center and adds controls such as topic muting and delivery settings. The free plan covers simple mailing lists up to 100 members, but excludes collaboration tools; Premium adds features including calendars, chat, files, photos, and wikis. The homepage says the service has no ads or tracking.
The pricing page lists Premium at $20/month minimum, or $220/year minimum, equivalent to $18.33/month with annual billing. That is reasonable if your group needs the extra tools, but the free tier is limited. Reddit discussions also show that joining can depend on individual group moderators: users report verification hurdles and unanswered moderator messages, though those are group-level experiences, not evidence about Groups.io support.
Good fit if
- Email-first clubs and communities
- Groups needing listserv-style discussions
- Premium groups wanting collaboration tools
Skip it if
- Free groups needing shared files
- Communities requiring built-in tools at no cost
- People expecting every group to moderate consistently

ScoresHow it rates
What works
- Free plan supports up to 100 members
- Email discussions arrive in members’ inboxes
- Members can mute topics and filter keywords
- Premium includes calendars, chat, files, and wikis
- Homepage says there are no ads or tracking
What doesn't
- Free plan excludes files, calendar, chat, wiki, and integrations
- Premium has a $20/month minimum
- Premium annual billing has a $220 minimum
- Joining rules can vary by group moderators
- Reddit users report some moderator messages go unanswered
01What Groups.io actually does
Groups.io is an ad-free email group service built as a modern replacement for mailing lists and listservs. It sends discussions to members’ inboxes, while also offering a web interface for reading and managing group activity. The homepage positions it for groups ranging from clubs and nonprofits to larger organizations.
Members can mute topics, filter keywords, and choose how they receive messages. The homepage also says Groups.io has no ads or tracking. For groups that need more than email, paid plans add collaboration tools such as calendars, chat, polls, databases, photos, files, and wikis. Premium plans include unlimited subgroups, and the service lists integrations with Slack, Bluesky, GitHub, Trello, and other tools.
There is a free plan for simple mailing lists of up to 100 members and a 30-day free trial. Paid options are Premium and Enterprise, with prices that depend on membership and, for Enterprise, organization type.
02Where Groups.io is strong
Groups.io makes sense when email is still the main event. Members get messages in their inboxes, and its topic muting, keyword filters, and delivery settings give them some control over busy lists without requiring everyone to move to a chat app. That is a practical fit for communities that already organize around email.
The upgrade path adds useful group tools rather than just a higher member cap. According to the plan details, Premium includes 30 GB of storage, files, photos, a wiki, calendar, chat, customizable profiles, and member data. Premium groups also get unlimited subgroups. The homepage lists additional collaboration options, including polls and databases, along with integrations such as Slack, Bluesky, GitHub, and Trello.
The free plan is enough to try the basic email-group model: it supports up to 100 members and 1 GB of attachment storage. Premium is listed at $0.04 per member monthly, with a $20 monthly minimum, or $0.44 per member annually, with a $220 annual minimum. Groups.io says the annual option includes one month free. Paid Memberships are also available without a Groups.io platform fee, though standard Stripe processing fees apply.
03Where it falls short
The free plan is a narrow starting point, not a free version of the full collaboration suite. It is capped at 100 members and 1 GB of attachment storage, and the plan details exclude files, photos, calendars, chat, wikis, and integrations. Groups that want those tools will need Premium or Enterprise. The smallest Premium bill is $20 per month or $220 per year, even if a group’s per-member calculation would otherwise be lower.
Enterprise pricing is a bigger commitment: the pricing details list it from $100 per month for nonprofits and $200 per month for commercial organizations, plus $0.10–$0.20 per member. No Enterprise annual rate is published. That makes it harder to compare the total cost without knowing the group’s size and status.
Groups.io also depends on group owners and moderators for access decisions. In one Reddit thread, members described QRZ-based verification problems and slow or absent moderator replies. That is an account of specific groups, not evidence of a general service failure, but it shows that joining and getting help can depend on people outside the platform. A separate Reddit thread reported an unexpected flood of group emails; commenters advised checking for mistaken sign-ups or other account activity.
04Groups.io pricing: what you'll actually pay
The Free plan costs $0 and covers mailing lists of up to 100 members, with 1 GB of attachment storage. It’s email-only: the plan excludes files, photos, calendars, chat, wikis, and integrations.
Premium is the big step up. The pricing details list it at $0.04 per member monthly, with a $20 monthly minimum, or $0.44 per member annually, with a $220 annual minimum. Annual billing includes one month free. Premium adds 30 GB of storage and collaboration tools including files, photos, a wiki, calendar, and chat. Check your headcount against the minimum before comparing per-member rates.
Enterprise starts at $100/month for nonprofits or $200/month for commercial groups, plus $0.10–$0.20 per member. It includes 1 TB of storage, white-label web and email, and single sign-on. Paid Memberships has no Groups.io platform fee, but standard Stripe processing fees apply. A 30-day free trial is listed.
05Switching to (or from) Groups.io
The product is built around email discussions, with Premium adding collaboration tools such as files, calendars, chat, and wikis. That makes the main migration question less about the mailing list alone and more about which group content and workflows need to move with it.
The published materials don’t specify migration steps, supported import formats, or whether members, message archives, files, and other data can be exported. Confirm those details with Groups.io before moving a live group; don’t assume an email-list move also transfers its history or collaboration content. The materials also don’t explain how easily you can take that content with you later, so export terms are worth checking before building a long-term archive there.
We can’t attribute reasons for leaving to Reddit: no Reddit posts or comments were included in the published material. We can say the Free plan excludes collaboration tools, so groups that need shared files or other built-in features must consider Premium or Enterprise—or another service.
From the threadsWhat users say
The two Reddit threads show mixed experiences: one commenter praised useful ham-radio discussions, while others described strict join checks and moderators who did not respond. Another thread involved people receiving unexpected bursts of group emails; commenters called Groups.io legitimate but advised checking for unwanted sign-ups or account activity.
Previously, Groups.io provided some useful info on the ham radio side. Lots of helpful and knowledgeable folks
I received no guidance from the moderator, who did not respond to ANY of my inquiries
I just started getting flooded with emails from this same service as well. I've never heard of it before
Groups.io is a service that basically uses email as a forum. It’s legit, but obviously if you did not sign up for it that’s another issue
Questions people ask
What do people use Groups.io for?
Groups.io hosts email-based group discussions: messages go to members’ inboxes, and members can mute topics, filter keywords, and set delivery preferences. The service also offers tools such as calendars, chat, polls, files, and wikis on paid plans. Its homepage describes it as suitable for communities from small clubs to nonprofits and large organizations.
Is Groups.io free?
Yes. The Free plan costs $0 and supports mailing lists with up to 100 members and 1 GB of attachment storage. It includes core email-group features, but not files, photos, calendars, chat, wikis, or integrations. Premium is listed at $0.04 per member monthly, with a $20 monthly minimum, or $220 per year minimum.
How do I unsubscribe from a Groups.io group?
A commenter in one Reddit thread said it was safe to open a Groups.io email and follow its unsubscribe link. If you did not knowingly join, check whether the messages are from a group you recognize before acting. Other commenters advised checking for important account or payment notices among a sudden burst of emails and reviewing accounts for unauthorized activity.
Is Groups.io a replacement for Google Groups?
Groups.io describes itself as an ad-free email group service and modern listserv replacement, not specifically as a Google Groups replacement. It offers email discussions and paid collaboration tools, with integrations including Slack, Bluesky, GitHub, and Trello. Whether it suits a group depends on its needs; the Free plan is limited to 100 members and core email features.
Does Groups.io include collaboration tools?
Yes, but the plan matters. Premium includes files, photos, a wiki, calendar, and chat, plus customizable profiles and member data; the pricing page lists 30 GB of storage. The Free plan is email-only and excludes those tools and integrations. Enterprise adds white-label web and email, single sign-on, and 1 TB of storage.
