The self-hosted Singenuity alternative
Slotly: Self-hosted appointment booking that refuses a second booking for a slot already taken, even when two people try at the same moment. Own it once, run it on your own server, and stop paying Singenuity every month.
Stop renting Singenuity.
Singenuity No subscription published: a 4% booking fee, which the page states the guest pays. Applies to activity revenue only ("No % fees on merchandise, concessions, photos"). Photo solution billed at $0.03 per photo upload. "Get a custom quote" for volume. Slotly is $99 once, runs on your own server, and never invoices you again.
Singenuity meters by BOOKING VALUE, not by seat or location: a percentage of every activity booking, rising with your revenue.
“Your guest is charged a small percentage of each booking”, their own page, read 2026-09-06
Singenuity is a payments platform as much as a booking one — it processes the card and runs POS, memberships and photo sales beside the calendar.
“Next day payouts”, their own page
Stay with Singenuity if you want payments run for you on tours and attractions: it processes the payment, handles refunds and sells photos and memberships alongside. Slotly books the slot and refuses to double-book it; it takes a deposit or the full price by card at booking only through your own Stripe account, when you switch it on, and every refund is made in your Stripe dashboard. The comparison is honest only for an operator who is happy to hold their own Stripe account.
What Slotly deliberately doesn't do is on its product page.
Why owning beats renting Singenuity.
No monthly, per-seat or per-location fees. The license is perpetual.
It never lives in Singenuity's cloud.
Records and users are limited by your hosting, not by a pricing tier.
Self-hosted software can't be sunset or repriced out from under you.
The fair trade-offs: you host it, back it up and apply updates yourself. See the product page for its limits, and the full Slotly vs renting comparison.
Questions about moving off Singenuity.
Does it take payment online?
What do automatic reminders need?
Can I run group classes?
MySQL or SQLite?
Related on this site
Sources
- Singenuity: price checked 2026-09-06, source“'Per booking fee' ... 'Your guest is charged a small percentage of each booking. That's it. No surprises.' ... '4' '%' 'Booking fee' ... 'Only applies to activity revenue' ... 'No % fees on merchandise, concessions, photos, knick-knacks or patty-whacks' ... 'Photo solution ($0.03/photo upload)'…”
Competitor prices change, so always confirm on the linked page. We only print figures we could verify on the date shown. This vendor is tracked in the Price Observatory: every figure verbatim, dated, re-checked quarterly.