Should you build your own Calendly?
Scheduling links for booking meetings without back-and-forth email
A single-user booking page is easy; production-grade scheduling needs OAuth, availability rules, time zones, reminders, payments, team routing, and trust.
ENOriginal research content in English. Original prompt preserved in English.
Build me a personal booking page like Calendly. Requirements:
- A public /book page showing my available slots for the next 14 days; visitors
pick one, enter name + email + note, and get a confirmation page.
- Availability = weekly rules in a config file (e.g. Mon–Fri 10:00–17:00,
30-min slots, 15-min buffer between meetings, my timezone) minus existing
bookings, rendered in the visitor's local timezone.
- Google Calendar sync via OAuth (credentials in .env): busy events block slots,
and confirmed bookings are created in my calendar with the visitor invited and
a Google Meet link attached. Warn me in the README: this OAuth app setup is
the fiddly part · budget an hour for the Google Cloud console alone.
- Email confirmations to both sides via SMTP creds in .env.
- Cancel/reschedule links with a signed token in the email.
- SQLite storage, one Node process, no accounts, no framework lock-in.The prompt opens pre-filled in your agent. Review it before running.
What would building your own look like?
Connect calendar, publish event-type pages, let guests choose available slots, create calendar events, and send reminders.
What you will need
- Google/Microsoft calendar OAuth
- hosted app
- email notifications
- timezone handling
- auth
They pay because double-booking or missed meeting invites is costly.
xpolished Google/Outlook OAuth kept working for you
xteam round-robin and routing
xSMS reminders
xthe integrations directory
Prefer something ready-made?
Cal.com FreeUnlimited solo event types, calendars and bookings, with payments and notifications; team routing costs money.Free↗
Google Calendar appointment schedulesOne bare appointment page inside the calendar you already use; reminders, payments and polish are paid.Free↗
Koalendar FreeUnlimited booking pages and two calendar connections; payments, forms, reminders and team routing are paid.Free↗View all 7 alternatives to Calendly →· Licença, instalação e limitações em cada alternativa.
How much does Calendly cost?
- Monthly billing
- $12/mo$12/mo · per person
- Per year
- $144/yr$144/yr
- Annual billing
- $120/yr17% cheaper than paying monthly
- On a Brazilian card, with 3.5% IOF
- R$62.71/moR$627/yr
Saved to My list. You will see a notice on this site when the price changes.
You complete the purchase on Calendly’s site. Vibe Radar does not handle payments.
| Plan | Monthly | Annual (per month) | What is included |
|---|---|---|---|
| free | $0/user | $0/user | 1 one-on-one event type, 1 connected calendar and unlimited scheduled meetings. |
| standard | $12/user≈ $12 | $10/user≈ $10 | Unlimited event types; connect up to 6 calendars; 1 seat per paid user. |
| teams | $20/user≈ $20 | $16/user≈ $16 | Unlimited event types; up to 6 connected calendars; round-robin and routing. |
| enterprise | - | $1250/workspace≈ $1,250 | Starts at a $15,000 annual contract; numeric user and event limits are custom. |
Free tier1 one-on-one event type, 1 connected calendar and unlimited meetings.
Billing termsmonthly + annual; 14-day paid-plan trial falls back to Free; Enterprise starts at $15,000/year
Additional costsEvery owner and admin occupies a paid seat; newly added seats are prorated and all users in one organization must share a plan. SAML SSO is a paid add-on with no public price.
verified 2026-10-20 · source ↗
Is it cheaper to build or buy Calendly?
Adjust the numbers: hours to build, your hourly rate, running costs and the subscription price.
Over 24 months, subscribing is cheaper.
Starting hours estimated from the analysis (weekend). Does not price what you give up (support, integrations, security).
Is Calendly free?
The free plan covers one event type on one connected calendar. The paid plan is Standard at $12/mo (checked 10/20/2026).
Can I rebuild Calendly?
Kinda. The core of Calendly is buildable in a weekend with the prompt on this page, but there are real gaps: polished Google/Outlook OAuth kept working for you, team round-robin and routing. Read the honest list above before committing.
How much does Calendly cost?
Calendly costs about $12/mo (Standard, checked 10/20/2026), which is $120 per year.
What do I lose by replacing Calendly?
Honestly: polished Google/Outlook OAuth kept working for you; team round-robin and routing; SMS reminders; the integrations directory. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Calendly?
Yes: Cal.com Free (Unlimited solo event types, calendars and bookings, with payments and notifications; team routing costs money.) Google Calendar appointment schedules (One bare appointment page inside the calendar you already use; reminders, payments and polish are paid.) Koalendar Free (Unlimited booking pages and two calendar connections; payments, forms, reminders and team routing are paid.) All 7 curated free alternatives are at https://viberadar.si/calendly/alternatives. The prompt is for when you want it exactly your way.