Compare

Features
Group description
Group image	Broken
Requires only an email address
Keeps your email address private
Restrict membership as needed	Broken
Stop Forum Spam integration
Moderate members
Organize messages during migration	n/a
Moderate messages
Receive new messages via email
New/Reply to messages via email
Post new messages online
Private Messages storage				50	500
Apple iOS / Android App
Smartphone/Tablet responsive website
Online message archive
Easy to read archives
Email Digests available
Similar Topics displayed for each post
Receive only the messages you want.
Edit Messages
Subgroups
Catagories within group
Sharing posts with Facebook, Twitter, etc.
Integrate other services: RSS feeds and Github.
Storage limits Free/Premium/Enterprise in GB		1	20/1000	2	40+
Harassment of any kind.
Hate groups against any race, gender, religion...
Holocaust revisionism, anti any religion
Distributing Copyrighted Content
Adult content permitted (within limits)
Discussion of conspiracy theories*
Fully respects freedom-of-speech†
Email address remains private
Hashtags
Group Wiki
Calendar
Files
Photos
Live Chatroom
Private Messaging other members
Fund raising via donations
Fund raising via advertising
Import messages from YahooGroups in 2020	n/a
Import messages from Facebook Groups
Combine imported messages from other sources
Import Members Directly (not just invite)	n/a
Use your own domain	n/a

*=Forums.group permits a wide range of topics except Holocaust revisionism, anti-religion and hate of any kind.
†=groups.io prohibits a range of contraversial topics (see Help on their website).
Data given is correct to the best of our knowledge, January 2020. Errors possible.
YahooGroups closed down on December 16, 2020.
All trademarks are the property of their respective owners.