Automatic SMS and text message appointment reminders for Google Calendar™, now by Kalama.

SMS Reminder sends text reminders to your clients from the Google Calendar™ you already use. Clients reply to confirm or cancel, your calendar updates itself, and you get a free online booking page with your own logo and brand colour. Google Calendar™ stays your source of truth, so there's no new calendar to manage. Built for salons, trainers, tutors, mobile services and small teams who run on appointments.

FREE TO START, NO CREDIT CARD
- 25 SMS reminders free, one time (not monthly). They don't expire.
- A free online booking page on your primary Google Calendar™, with unlimited bookings
- Unlimited appointment types
- Your logo and brand colour on the booking page, free on every plan
- Paid plans from $19/month USD add monthly reminders, more calendars and more users. No features held back on any plan.

WHY BUSINESSES CHOOSE SMS REMINDER
- Text reminders on autopilot. Set your timing once, for example 24 hours and 2 hours before. Bookings from your booking page get reminders automatically. For appointments you add yourself, open the event, add the client's number from the sidebar and save. In the web app, approve a suggested number once and future appointments with it, including recurring ones, switch on by themselves.
- Clients just text back. "Yes" or 👍 confirms. "Can't make it" cancels and frees the slot. Asking to move? They get your booking link to pick a new time. Replies understood in English, French, Spanish, Italian, Portuguese and German.
- Your calendar updates itself. Events turn green (confirmed), yellow (pending) or red (cancelled), with the status in the title. Cancelled appointments stop getting reminders.
- Every message, your way. Unlimited templates for confirmations, reminders and follow-ups, filled in with the appointment's date, time, location and video call link (Google Meet™, Zoom, Microsoft Teams or Webex).
- A cancellation policy that works for you. Set a notice window, warn or block late cancels, and see every late cancel in one list so you can follow up or charge your fee.
- A booking page that looks like your business. Your logo and colour on every booking page and on the booking button for your website. Clients book, reschedule or cancel themselves. Add booking questions, buffers and notice periods, and a location or Google Meet™ link for each appointment type.
- Lives in Google Calendar™. Open it from the right-hand sidebar. Nothing new to learn.

BY THE NUMBERS (AS OF MAY 2026)
- 2,000+ businesses send reminders with SMS Reminder
- 5M+ reminders sent a year
- Works in 100+ countries

GET STARTED IN 4 STEPS
1. Click Install.
2. Open the app from the right-hand sidebar of Google Calendar™.
3. Set your reminder timing once, for example 24 hours and 2 hours before.
4. Share your free booking link. Bookings get reminders automatically, and clients reply to confirm or cancel.

QUESTIONS
Can I send text reminders to clients from Google Calendar™?
Yes. Install this add-on, add your client's phone number to the appointment, and SMS Reminder texts them before it starts, on the timing you choose.

Do my clients need an app or an account?
No. Reminders arrive as regular text messages, and clients reply the way they'd answer any text.

Is it free?
You get a free booking page and 25 SMS reminders free, one time (not monthly), with no credit card. When you use them up, your booking page keeps working and reminders pause until you pick a plan from $19/month USD.

Does it come with a booking page?
Yes. Every account includes a free booking page on your primary Google Calendar™, and bookings from it get reminders automatically. Only need booking? Kalama also makes the free Appointment Booking for Google Calendar™ add-on.

SMS REMINDER IS BECOMING KALAMA
Same product, team and account. Nothing to reinstall. You'll see "Kalama, formerly SMS Reminder" while the name changes.

PRICING
Free plan: online booking page plus 25 SMS reminders one time (not monthly), no credit card. Paid plans $19–$125/month USD, 2 months free on yearly billing, 30-day money-back guarantee, cancel anytime.

PRIVACY
SMS Reminder only accesses the calendar data needed to schedule and send your reminders. See our privacy policy and terms of service below.

Help and setup guides: smsreminder.app/help

Google Calendar™, the Google Calendar™ logo, Google Meet™ and Google Workspace™ are trademarks of Google LLC.