diumDium compared, honestly.
Side-by-side pages with dated, sourced facts. Each one says where the other tool is the better pick.
Dium vs Slack
Chat that expires vs answers that stay. Per seat vs one flat price.
Read the comparisonCourses, or answers?Dium vs Circle
Courses and payments vs Q&A and best answers. No free plan vs free under 50.
Read the comparisonA chat server, or a knowledge base?Dium vs Discord
Free chat and voice vs a searchable knowledge base, roles and digests.
Read the comparisonA forum, or forum plus live events?Dium vs Discourse
A mature open-source forum vs hosted Q&A with live sessions and sponsor Pages.
Read the comparisonSelling access, or sharing answers?Dium vs Skool
Selling a creator community vs answering questions together.
Read the comparisonNot sure yet?
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Take a tourPublished prices, as of September 2026
Dium is free under 50 members, then $29 to $299 a month per community by member count. Here is what the others publish.
| Tool | Published pricing | Model | Full comparison |
|---|---|---|---|
| Slack | Free (90 days of history); Pro $7.25 per user/mo billed annuallyAs of September 2026. Source: Slack pricing | Per seat | Dium vs Slack |
| Circle | No free plan; from $89/mo plus a 2% transaction feeAs of September 2026. Source: Circle pricing | Flat plans, unlimited members | Dium vs Circle |
| Discord | Servers free; Nitro and boosts are member perksAs of September 2026. Source: eesel AI summary of Discord pricing, 2026 | Free | Dium vs Discord |
| Discourse | Free hosted plan (2 staff); Pro $100/mo; Business $500/moAs of September 2026. Source: Discourse pricing | Flat plans by staff and features | Dium vs Discourse |
| Skool | Hobby $9/mo plus a 10% fee; Pro $99/mo plus a 2.9% feeAs of September 2026. Source: Skool pricing | Flat plans, unlimited members | Dium vs Skool |
How we write these pages
A comparison is only useful if you can check it.
Dated and sourced
Every competitor price says when we checked it and links to where we found it, usually the vendor's own pricing page.
Honest about trade-offs
Each page has a section called "Where X is better". If another tool fits you better, we say so.
Open to corrections
Email [email protected] with a source and we will fix confirmed errors.
No affiliation
Dium is not affiliated with any tool named here. Names and trademarks belong to their owners.
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