The sections below show which features are available for Basic, Premium, and Enterprise groups, including limitations that have been implemented over the years.

All levels have the following options:

Listed or unlisted in site groups directory

Public or private archives

Open, restricted, or moderated

Virus scanning

API access

Comprehensive moderation tools

Allow sponsorship of the group with a button on the home page  (see https://beta.groups.io/g/main/topic/79657173 for details)

Basic (Free)

For groups created before January 15, 2020:

1 GB storage

Unlimited subgroups

Group calendar

File storage

Photo storage

Databases

Wiki

Polls

Chat

5 integrations

Limit of 100 MB per file, photo, or email

For groups created between January 15 and August 24, 2020:

All of the above with the exception of subgroups - none are allowed

For groups created after August 24, 2020:

No subgroups, calendar, files (except attachments), photos (except attachments), databases, wiki, polls, chats, or integrations.

Premium ($20/mo or $220/yr)

(groups that became Premium before October 22, 2019 have a grandfathered price of $10/mo or $110/yr as long as they don't change plans)

Regular:

20 GB storage

Unlimited subgroups (If the group is downgraded to Basic, subgroups are locked)

Group calendar

File storage

Photo storage

Databases

Wiki

Polls

Chat

Unlimited integrations

Limit of 100 MB per email, 500 MB per file or photo

Directly add members

Edit email addresses & confirm members

Track removed members (including their history)

Create group aliases

Request & track RSVPs to events

Lock groups & subgroups

Ban domains

Database map view for addresses

Allow/limit reposting

Sync calendar

Send calendar invites on join

ZOOM calendar integration

Event summary email

Accept donations

30 day free trial:

All of the above EXCEPT you cannot Directly add members or Edit email addresses & confirm members.  If the group is downgraded to Basic, subgroups are locked.

For details, see https://beta.groups.io/g/main/message/25734

Enterprise ($200/mo or $2200/yr)

All features of regular Premium PLUS:

1 TB storage

Your own domain

Single sign on

Your own logo

Fully customizable Home page

If the group is downgraded to Basic, subgroups are locked