Coaches, consultants, barbers, freelancers: stop renting your booking link for $10/month. Bookslot is a self-hosted scheduling app — visitors pick a time in their own timezone, get a confirmation email with a calendar invite, and you manage everything from a password-protected admin panel.
If you've searched for a Calendly alternative, Bookslot is the pay-once option worth putting at the top of the list: Bookslot is $39, one time, and covers the same core job Calendly charges $10/user/mo for.
What makes Bookslot the pick for 2026
- Event types — Name, duration, description, color, buffers, minimum notice, max days ahead — each with its own public link.
- Weekly availability editor — Per-day time ranges in your timezone, plus one-off blocked dates and times.
- Timezone-correct slot math — Stored in UTC, computed in your timezone (DST-safe, unit-tested), displayed in the visitor's.
- Double-booking protection — Slot validity re-checked inside a SQLite transaction at booking time.
- Email + ICS invites — Confirmation with calendar attachment to the visitor, notification to you — via your own SMTP.
Bookslot vs Calendly, at a glance
| Bookslot | Calendly | |
|---|---|---|
| Price | $39 once | $10/user/month, forever |
| Cost after 3 years | $39 | $360 |
| Your own domain | Yes | Their domain (branding is a paid add-on) |
| Data ownership | SQLite file on your server | Their cloud |
| Buffers, min notice, date limits | Yes | Yes |
| Email + ICS invites | Yes (BYO SMTP) | Yes |
| Cancel/reschedule links | Yes | Yes |
| Telemetry / tracking | None | Their ToS |
Pays for itself in under 4 months vs Calendly — then your booking link is free for life.
Common questions
Is it really free on GitHub?
Yes — MIT source at github.com/bensblueprints/booking-page-mvp. $39 buys the packaged installer, 1-click setup, updates and priority support.
Does it sync with Google Calendar?
Not two-way — that's Calendly's strongest feature and we'll say so. Bookslot sends .ics invites your calendar ingests, and you block busy times manually. If you live across 3 synced calendars, Calendly earns its fee.
Do I need a server?
For a public booking page, yes — a $5 VPS with the included Docker setup. Desktop mode works for managing availability and bookings locally.
The bottom line
Bookslot won't out-feature Calendly on every axis — no subscription tool with a bigger team and a bigger roadmap loses on everything. But for the core job, $39 once against $10/user/mo forever is a trade most people should at least look at. Bookslot is part of OneTimeSuite, a catalog of pay-once apps that replace subscription SaaS.
Try Bookslot — $39, once
The Calendly you actually own — timezone-correct booking with email + ICS invites.