Verdict · Verified 18 August 2026
Circle — the right shape for societies, if you can staff it
From $89/mo · 14-day free trial
Courses on every paid tier is the structurally important feature: societies increasingly run training alongside membership, and keeping both in one system removes separate logins, separate member lists and separate reconciliation. Professional at $89/month with a 2% transaction fee suits most societies; Business at $199/month and 1% only pays for itself at considerably higher revenue. The 14-day trial needs no card and there is a 30-day money-back guarantee, so the evaluation is genuinely low-risk.
Start a Circle trial Opens on the vendor’s site · CASRAI referral link
Compare against Skool and Mighty Networks → — If your community is a single cohort rather than a standing membership, a different platform may fit better.
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In summary
- Professional $89/mo (2% transaction fee, 3 admins, 10 moderators, 20 automations).
- Business $199/mo (1% fee, 5 admins, 15 moderators, unlimited automations).
- Circle Plus custom (0.5% fee, unlimited admins and moderators, optional branded app).
- All tiers: unlimited members, courses included, Circle AI with 2,500 credits/mo. Verified 18 August 2026.
- Moderator limits, not member limits, are what push societies with sub-groups up a tier.
Circle plans
Verified from the vendor pricing page, 18 August 2026
| Dimension | Professional | Business | Circle Plus |
|---|---|---|---|
| Price / month | $89 | $199 | Custom |
| Transaction fee | 2% | 1% | 0.5% |
| Members | Unlimited | Unlimited | Unlimited |
| Admins | 3 | 5 | Unlimited |
| Moderators | 10 | 15 | Unlimited |
| Courses | Included | Included | Included |
| Circle AI | 2,500 credits/mo | 2,500 credits/mo | Negotiable |
| Workflows | 20 automations | Unlimited | Unlimited |
| Branded mobile app | No | No | Optional add-on |
Payment processor fees sit on top of the platform transaction fee and are typically the larger of the two — include both when modelling.
Why consolidation is the real feature
A typical learned society or research network runs a mailing list, a members-only area bolted onto its website, an events tool, a payment mechanism through its finance office, and — increasingly — a separate LMS for its training programme. Five systems, five member records, and a treasurer reconciling between them.
Circle’s argument is that these are one product. Community discussion, courses, events and member payments sit against one member identity. Somebody who joins the society, pays their subscription, enrols on the summer school and attends the seminar series exists once rather than five times.
For research organisations the courses inclusion matters most, because it is the piece that usually costs extra elsewhere. Societies are running more training — methods series, certification pathways, early-career development — and running it on a separate platform means separate logins for members and separate administration for a volunteer committee that has no capacity for either. Circle includes courses on every paid tier, which is the strongest structural case for it in this sector.
The transaction fee decides the tier
The comparison people run — $89 against $199 a month — is the wrong one once you are taking member payments.
Work an example. A society with 400 members at £60 a year turns over £24,000. On Professional that is 2% (£480) plus $1,068 of subscription. On Business it is 1% (£240) plus $2,388. Professional wins clearly.
Now take a larger society at £150,000 including a paid annual meeting and course income. Professional costs £3,000 in fees plus $1,068; Business costs £1,500 plus $2,388. Business is now roughly level and pulls ahead as revenue grows, with Circle Plus at 0.5% worth a conversation above that.
Two things to include. Payment processor fees are additional and usually larger than the platform fee. And model total transaction volume — course fees, event tickets, sponsorship handled through the platform — not just membership subscriptions, because that is what the percentage applies to.
Moderator count, not member count
Circle advertises unlimited members on every tier, which sounds like it removes the usual scaling constraint. For societies it does — and a different limit replaces it.
Almost every research network has internal structure: regional chapters, special interest groups, methods streams, an early-career section, a committee or two. Each of those wants its own space and its own moderator, and those moderators are volunteers who need to be able to manage their own group without going through a central administrator.
Professional gives 3 admins and 10 moderators. A society with eight special interest groups plus an ECR section plus two committees is at that ceiling immediately, well before member count is relevant. Business raises it to 5 and 15; Circle Plus removes the limit.
Count your groups and their volunteers before pricing anything. This is the single most common reason a society finds itself on a higher tier than it budgeted for.
Reasons not to buy it
You have nobody to run it. This is the decisive one. An empty community is worse than no community — a member who visits twice, finds nothing new, and leaves will not return when it eventually becomes active, and a visibly dead official community makes the next attempt harder. If you cannot name the person whose actual job includes hosting it, delay the purchase.
Your members will not move. Migrating a mailing list means re-consenting members under GDPR in most cases, and you will lose a proportion. That is usually informative rather than harmful, but go in expecting it.
You need deep institutional integration. If membership must sync with a CRM, a finance system or an institutional identity provider, check what is actually possible before committing. Automations are capped at 20 on Professional.
Your requirement is really just a better mailing list. If discussion is genuinely low and members only want announcements, a modern email platform is cheaper and will be used more.
Data portability. Ask explicitly what you can export, in what format, and whether it includes posts as well as the member list. Your membership data is the society’s most valuable asset, and the answer to that question should be settled before you migrate rather than after.
Trial it with one working group first
The 14-day trial requires no card and there is a 30-day money-back guarantee. Running a single committee or special interest group on it tells you more about fit than any feature list, and gives you the seeded content a full launch needs.
From $89/mo · 14-day free trial
Start a Circle trial Opens on the vendor’s site · CASRAI referral link
Frequently asked questions
How much does Circle cost?
Professional is $89/month with a 2% transaction fee, Business is $199/month at 1%, and Circle Plus is custom-priced at 0.5%. All tiers include unlimited members and courses, with a 14-day trial requiring no card and a 30-day money-back guarantee. Verified 18 August 2026.
Does Circle include courses?
Yes, on every paid tier. That is the structurally important feature for societies, because it means a training programme and a member community share one platform, one login and one member record rather than needing a separate LMS.
Which Circle plan should a learned society choose?
Most should start on Professional at $89/month. The thing that pushes societies up is not member count — which is unlimited everywhere — but moderator limits: Professional gives 3 admins and 10 moderators, and a network with several special interest groups plus committees hits that quickly.
Is the 2% transaction fee significant?
It depends on revenue. At £24,000 a year it is £480 and Professional is clearly cheapest overall. At £150,000 the 1% Business tier roughly breaks even and pulls ahead above that. Model total transaction volume including course and event income, and remember payment processor fees are additional.
Can we migrate our mailing list to Circle?
Not by direct import. Under GDPR and similar regimes you need a lawful basis for the new processing, and consent given to a listserv years ago generally does not carry over. Invite members with a clear privacy notice, run both in parallel through the transition, and expect to lose a share of the list.
When should we not buy Circle?
When nobody owns running it as part of their actual job. An empty community is worse than none — members who visit and find nothing do not come back. Also reconsider if you need deep CRM or identity-provider integration, or if your members genuinely only want announcements, in which case an email platform is cheaper.
