Who's In vs Slack
Slack is a messaging tool — not a community platform. Events get buried in channels, there's no RSVP tracking, no attendance, no payment collection. Who's In Clubs is event-first with membership tiers, automated renewals, and Stripe payments. $8.25/mo for organizers, no per-member platform fees.
All features included · No credit card required
By Craig Pollard, Founder & CEO · Reviewed July 2026
Last updated: July 2026
Who's In
$8.25/mo • Event-First • Members Join Free
- Purpose-built for club event management
- One-tap RSVP — no member accounts needed
- Attendance tracking with QR check-in
- Stripe payments for dues & paid events (2.7%)
- Membership tiers, groups, and automated renewals
- WhatsApp-native event sharing
Slack
$0–8.75/user/mo • Work Messaging Tool
- Excellent real-time group messaging
- Rich integration ecosystem (2,600+ apps)
- Threaded conversations and file sharing
- No RSVP or event management features
- Events buried in chat history within minutes
- No attendance tracking whatsoever
- No payment collection for dues or events
- Per-user pricing adds up fast for communities
Your Club Isn't a Slack Workspace.
Stop Treating It Like One.
Slack was built for work teams who need real-time messaging. It's brilliant at that. But when you try to run a book club, hiking group, or fitness community in Slack, events get buried in chat, RSVPs happen via emoji reactions that nobody tracks, and collecting money means chasing people in DMs.
Who's In Clubs is purpose-built for real-world communities. Every feature exists to help you organise events, track who's coming, manage memberships, and collect payments — not to facilitate workplace chat.
📢 In Slack, your weekend hike announcement is buried under 47 messages about lunch by noon. In Who's In Clubs, it's pinned with a live RSVP count and a waitlist.
Why Slack Fails for Communities
- • Events buried in chat — scroll to find them
- • RSVPs via emoji reactions are unreliable and untrackable
- • No waitlist when events are full
- • No attendance tracking — who actually showed up?
- • No payment collection for membership dues or event fees
- • Per-user pricing ($0–8.75/user/mo) punishes growing communities
- • Free tier limits message history to 90 days
- • Members need a Slack account to participate
Who's In Clubs: Built for Real-World Communities
- Create event → Share link → Track RSVPs in real time
- Automatic waitlist when events hit capacity
- QR code check-in for attendance tracking
- Collect dues and event fees via Stripe (2.7% flat)
- Membership tiers with automated renewals
- Members join via link — no accounts or apps required
Feature-by-Feature Comparison
| Feature | Who's In | Slack |
|---|---|---|
| Monthly Cost (Organizer) | $8.25/mo flat | Free–$8.75/user/mo |
| Cost for Members | Free | $0–8.75/user/mo |
| Event Creation | Purpose-built event pages | Post in a channel |
| RSVP Tracking | Built-in with live counts | None (emoji reactions) |
| Waitlist Management | Automatic when full | Not available |
| Attendance Tracking | QR check-in + CSV export | Not available |
| Payment Collection | Stripe (2.7% flat) | Not available |
| Membership Management | Tiers, groups, renewals | Not available |
| Membership Dues | Automated Stripe billing | Not available |
| Recurring Events | Built-in | Manual repost each time |
| WhatsApp Sharing | Native | Copy-paste link |
| Member Account Required | No | Yes (Slack account) |
| Group Messaging | Event-based notifications | Full real-time chat |
| Integrations | Stripe, calendar sync, LinkedIn | 2,600+ app integrations |
| File Sharing | Event attachments | Full file sharing & search |
| Message History | All events permanently visible | Free: 90-day limit |
| Waiver / T&C Acceptance | Built-in on join | Not available |
| Public Event Page | SEO-friendly shareable page | Not available |
| Wallet Tickets (Apple/Google) | Included | Not available |
| CSV Export (Members & Payments) | Included | Workspace analytics only |
| Event Photo Album | Up to 10 images with lightbox, free | Limited or paid plan |
| Downloadable Documents (PDF/Office/iWork) | Up to 3 files per event, free | No |
| Organiser Socials (8 platforms) | X, FB, IG, YouTube, TikTok, LinkedIn, Snapchat, Reddit auto-synced | Limited |
Who's In is Perfect For
Book Clubs
Schedule meetings, track RSVPs, and manage your reading community
Hiking & Outdoor Groups
Capped events with waitlists and QR check-in at the trailhead
Yoga & Fitness Communities
Class bookings, attendance tracking, and membership tiers
Music & Arts Collectives
Collect performance fees, manage rehearsal schedules, track who shows up
Sports & Social Clubs
Weekly fixtures, court bookings, membership renewals via Stripe
Social & Networking Groups
Event-first community building with zero friction for attendees
Need a real-time workplace messaging tool? Slack is world-class at that. Need to run a community with events, RSVPs, attendance, and payments? That's Who's In Clubs.
What organisers say on Trustpilot
"Setting up and sharing events is seamless. The intuitive customization options take the hassle out of organising."
Pontus Sonnerstedt
Community events · Trustpilot review
"I love this app! It's perfect for organising events from walking groups to theatre trips, parties to weekends away. The plus one feature is brilliant. It takes all the stress out of organising events."
Mrs. A.
Social groups & walking clubs · Trustpilot review
"Thank you for the quick turn around with an issue I encountered. In less than 10 mins. My issue was resolved."
A J
Customer support · Trustpilot review
Frequently Asked Questions
Is Who's In Clubs a good Slack alternative for communities?▼
Yes, if your primary need is organising events and managing memberships. Slack is a messaging tool repurposed for communities — it has no RSVP, no attendance tracking, no payment collection, and no waitlists. Who's In Clubs is purpose-built for community event management at $8.25/mo for organisers, no per-member platform fees.
How much does Slack cost for a community vs Who's In Clubs?▼
Slack charges per user: free (limited history), $8.75/user/mo (Pro), or $15/user/mo (Business+). For a 100-member community on Slack Pro, that's $875/month. Who's In Clubs is $8.25/month flat for the organiser, and all no per-member platform fees. For paid events, there's a 2.7% flat fee processed through Stripe.
Can my members RSVP without creating an account?▼
Yes. Members tap a link, enter their name, and they're RSVP'd. No Slack account, no app download, no login. This is the biggest difference — Slack requires every member to create a Slack account and join a workspace.
Can I collect membership dues with Who's In Clubs?▼
Yes. Set up membership tiers with Stripe-powered automated billing. Annual or monthly renewals happen automatically. Slack has no payment collection at all — most Slack communities resort to manual Venmo/PayPal requests.
What about group chat — can members message each other?▼
Who's In Clubs focuses on event coordination, not real-time chat. Most community organisers find that WhatsApp or a simple group chat handles casual conversation better than Slack anyway. Who's In sends event notifications and reminders — the messaging happens where your members already are.
Can I track attendance at events?▼
Yes. Who's In Clubs includes QR code check-in at events, automatic attendance records, and CSV export. In Slack, there's no way to track who actually showed up — only who reacted with an emoji three days earlier.
Start free, scale when you're ready
RSVP link, automatic waitlists, reminders, QR check-in, calendar sync
WhatsApp sharing, CSV export, capacity limits, guest notes, cover images
Stripe payments, recurring events, memberships, surveys, analytics
Every feature works the moment you turn it on. No configuration required.
Every new account gets all features unlocked forever — no credit card needed, no trials, no upgrades.
Your Community Deserves Better Than a Chat Tool
Purpose-built club management with RSVPs, attendance, payments, and membership tiers — $8.25/mo for organisers, no per-member platform fees.
$8.25/mo flat • No per-member platform fees • 2.7% on paid events only · All features included
