diumEvery Dium feature, grouped by the job it does.
Pick a job below. Each feature says whether it is on the Free plan, a Pro plan, or set up with our team.
Ask and answer
The core loop: someone asks, the community replies, the best reply gets marked.
Typed Waves Free
Question, discussion, announcement, session and opportunity. Each type behaves differently, so members know what a thread is for.
Best answer Free
The asker or a moderator marks the reply that worked. The Wave shows as Solved and the answer author is notified.
Nested replies and @mentions Free
Reply to a reply, and mention members with a picker that knows who is in the Flow.
Reactions, likes and helpful votes Free
Emoji reactions, likes, and a separate helpful vote that feeds the author's trust score.
Pinned replies Free
Pin the reply everyone should read first, right inside the Wave.
Polls Free
Add a poll to any Wave, with single or multiple choice and a closing time.
Opportunities Free
Post a job, project or hackathon slot. Members apply, and owners route applicants to the right person.
Private Waves Free
Keep a Wave public, limit it, or make it invite only with an access code.
Partners can create Waves with wave.php action create using a scoped API key.
Organize and search
Keep the answer findable after the thread goes quiet.
Search Free
Search across Waves and replies in a Flow, with solved Waves marked.
Tags and a Tags tab Free
Tag every Wave, set default tags for the Flow, and browse everything under one tag.
Discovery feeds Free
For You, Trending, Live Now and New, plus filters for type, status and your own Waves.
Automatic tidy-up Free
Idle questions archive after 14 days, help requests after 72 hours, and AMAs at their end time.
Pinned announcement Free
One announcement stays at the top of the feed until you unpin it.
Trust score Free
A member's reputation grows from best answers, likes and hosting live sessions.
Live sessions
Talk live, then keep the written record in the same Wave.
Scheduled sessions Free
Set a time, duration and seat limit. Members RSVP, claim a seat and open the meeting link.
Go live Free
Flip a session to live and a live banner appears across the Flow and the Live Now feed.
Raised hands Free
Members raise a hand so hosts know who wants to speak next.
Breakout tables Free
Split a session into tables, each with its own seat limit.
Polls and session chat Free
Run a quick poll and chat alongside the call without leaving the Wave.
Co-hosts and recurrence Free
Add co-hosts, and repeat office hours weekly, biweekly or monthly.
AMAs Free
Open an ask-me-anything with an end time. It closes on its own.
Event partners can create session Waves in bulk through the partner API. Re-sending an agenda updates sessions instead of duplicating them.
Messaging
Private conversations that stay inside the community.
Direct and group messages Free
One-to-one and group conversations, scoped to the Flow or Room they started in.
Threaded replies Free
Reply to one message without losing the rest of the conversation.
Edit, delete, react and pin Free
Authors can edit or delete. Anyone can react, and a pinned message shows as a banner.
Typing and online indicators Free
See who is typing and who is online right now.
Peer-to-peer file transfer Free
Send a file straight from one browser to another. The receiver checks it arrived intact.
Pages
Branded spaces for sponsors, exhibitors, speakers and partners.
Four Page types Free
Sponsor, exhibitor, speaker and partner, each with its own permissions.
Front face Free
Logo, banner, tagline, about, team, perks and one call-to-action button.
Wall and discussions Free
A quick-message wall on the Page plus a full discussion thread.
Post as a Page Free
Team members can post Waves under the Page's name and logo.
Owner analytics Free
Visits, CTA clicks, messages and downloads, visible only to the Page owner.
Exhibitors tab Free
Pages appear together in the Flow, so attendees can browse the expo.
Partners can create a Page when a sponsor registers (exhibit.php action create). Retries do not create duplicates.
Members, roles and moderation
Decide who can do what, and handle problems quickly.
Six Flow roles Free
Owner, organizer, admin, moderator, member and viewer, with sensible defaults you can change.
Profile types Free
Custom roles such as Speaker or Mentor. Set which Wave types and Pages each may create, and how many.
Join modes Free
Open, approval, invite or join code. Flows can be public or private.
Invite links per profile type Free
Create and revoke links that join people with the right role.
Email invitations Pro plans
Send invitations with a custom message from the Flow.
Member directory and map Free
See members with title, company and city, and a map of where members are.
Reports and actions Free
Reports for spam, harassment and more. Dismiss, warn, hide, delete, mute or ban.
Community flags Free
Five flags suspend an account automatically. A flag from an owner or organizer suspends at once.
Admin dashboard Free
Active members by day, week and month, top contributors, top Waves and pending reports.
Custom branding Pro plans
Your logo, banner and brand colors across the Flow.
Notifications and digests
Members hear about what matters, when it suits them.
Notification center Free
More than 25 kinds, including replies, mentions, best answers, new Waves and join requests.
Browser push Free
Real-time alerts in the browser while members are away from the tab.
Email digests Free
Daily or weekly, grouped by Flow, sent in each member's time zone.
Quiet hours Free
Members pick hours when no digest is sent, even across midnight.
Installable web app Free
Add Dium to a phone or desktop home screen from the browser.
Embed, SSO and API
For partners who want Dium on their own site with their own sign-in.
Partner mount Talk to us
Run Dium inside a path on your domain, with your app name and a back link to your site.
Floating widget Talk to us
A button that opens a Dium feed drawer on any page.
One-time sign-in tokens Talk to us
Your server requests a token that expires in five minutes and works once.
Werify SSO Talk to us
Members signed in with Werify on your site arrive in Dium signed in.
Moat identity Free
Names and photos come from each member's Moat profile and stay in sync.
Partner API Talk to us
JSON POST with an X-Api-Key header and scoped keys for Flows, Waves, Pages and sign-in.
Rooms Talk to us
Group sibling Flows so members and DMs carry across them.
Endpoints, scopes, sign-in options and security notes. No public SDK: every call is a plain HTTPS request.
What Dium does not do yet
Knowing the gaps saves you a demo. If one of these blocks you, tell us.
Outbound webhooks
Dium does not send event webhooks to your systems today. Partners call the API instead.
Public SDKs
No SDK packages. The partner API is plain JSON over HTTPS, so any language works.
Hosted video
Live sessions use your own Google Meet, Zoom or other meeting link.
Self-serve export
Owners can request an export of their Flow by writing to [email protected].
Native mobile apps
Dium is a web app you can install from the browser. There is no app store download.
Go deeper
How Dium works
Follow one question from a new Flow to a solved answer, with screens for each stage.
Product overviewTemplates
Setup recipes for cohort Q&A, conference live Q&A and an internal help desk.
Browse templatesPricing
Free under 50 members, then one flat monthly price per community.
See pricingTry every feature on the Free plan.
Everything marked Free works from day one, with no card. You only pick a plan when your 50th member joins.