Astrocal
Use Case

Fewer no-shows.
Zero manual effort.

Automated email reminders go out before every appointment. Clients show up prepared, on time, and without you lifting a finger.

Sound familiar?

Clients book, then forget the appointment entirely

A week later, the appointment comes and goes. You're left with an empty slot and lost revenue. Astrocal sends reminders 24 hours and 1 hour before, so memory doesn't have to.

You still send every reminder by hand

Texting clients the day before, calling to confirm, sending 'just a reminder' emails. It works, but it doesn't scale. Automation does.

A reminder they never see is no reminder at all

A text buried in a thread gets missed. Astrocal emails a reminder 24 hours and 1 hour before, with the full appointment details and links to cancel or reschedule, so it lands where clients actually look.

Reminders that go out on their own

Every Astrocal booking triggers automatic email reminders at the intervals you choose. Clients get a confirmation at booking, a reminder 24 hours before, and another 1 hour before. No setup per appointment, no manual follow-up.

Email reminders, automatic

Confirmation at booking. Reminder 24 hours before. Reminder 1 hour before. Every appointment, every time. No manual send, no missed reminders.

Calendar attachment on confirmation

The booking confirmation includes an ICS calendar attachment. Clients add the appointment to their calendar with one click, then reminders follow before it starts.

Reschedule and cancel links

Every reminder includes a link to reschedule or cancel. If a client can't make it, they free up the slot automatically instead of just not showing up.

Deposits reinforce commitment

Combine reminders with a deposit requirement via Stripe. Financial commitment plus timely reminders is the most effective way to reduce no-shows.

Syncs with your calendar

Bookings appear on your connected calendar automatically. If a client reschedules via the reminder link, the calendar event updates in real time.

Webhooks on every event

Get notified when a booking is created, cancelled, or rescheduled via webhooks. Push data to Slack, your CRM, or any tool in your stack.

Reminders from your first booking

Fully themeable via CSS variables
--astrocal-primary: #2563eb;
--astrocal-heading: #2563eb;
--astrocal-radius: 8px;
--astrocal-font: 'Inter', sans-serif;

...and background, text, borders, shadows, and more

Create an event type

Set up your appointment type with the right duration, price, and availability. Reminders are enabled by default. No extra configuration needed.

Share your booking link

Add your link to your website, email signature, or social media. Embed the widget directly on your site. Clients book, get an instant confirmation, and reminders are queued automatically.

Watch no-shows drop

24 hours before: reminder sent. 1 hour before: reminder sent. Each includes reschedule and cancel links. Clients who can't make it free up the slot instead of ghosting.

How does Astrocal compare to Calendly?

 AstrocalCalendly
Email reminders✓ All plans✓ All plans
ICS attachment on confirmation
Flat pricing, no per-seat fees✗ Per-seat

Frequently asked questions

By default, the client gets an email reminder 24 hours and 1 hour before every appointment. Set your own timings per event type over the API — up to five reminders each, from 1 minute to a week ahead.
The booking confirmation includes an ICS file, so clients add the appointment to Google Calendar, Apple Calendar, or Outlook with one click. Reminder emails don't repeat the attachment — they carry the appointment details plus links to cancel or reschedule.
Yes. Every reminder includes a reschedule link and a cancel link. If a client can't make it, they can move to a new time or free up the slot automatically.
No. Reminders are enabled by default on all event types. Every booking gets the same reminder sequence automatically. No per-appointment setup.
Yes. Set a deposit on any event type via Stripe. Clients who book and pay are reminded automatically. The combination of financial commitment and timely reminders is the most effective way to reduce no-shows.
Email reminders are included on all plans, including the free plan (10 bookings per month). Paid plans start at $12/month flat.

Stop chasing clients. Start reminding them.

Automated reminders on every plan. Free to start, no credit card required.