SMS reminders from your Google Calendar to your clients' mobiles
Pop the client's mobile number into the booking and Etisia sends them an SMS before they come in, starting with your business name. How you take bookings stays the same.
Free for 21 days, no card needed
Private event
Add a phone number and Etisia will schedule a reminder.
First name, last name and mobile, typed into the event title…
What Etisia does for Australian businesses
Etisia is an SMS reminder app for Google Calendar, made for Australian businesses: if a booking in your calendar carries the client's mobile number, that client gets an SMS before the visit. These SMS reminders for Google Calendar go to clients, not to you, as one-way text reminders, and the cancel link is up to you. You pay nothing for 21 days and need no card; from then on, Starter costs A$41/mo billed yearly (ex GST where applicable).
The essentials
- Who the SMS goes to
- The client on the booking, on their own mobile, with nothing to download.
- Finding the client's mobile
- The booking's title, description, location or guests, or a saved client's full name.
- The client's options
- Read it, and cancel with the link when that's turned on. It's one-way.
- Once the trial ends
- Starter costs A$41/mo billed yearly (ex GST where applicable) after your 21 free days, and there's no card to enter before then.
- Getting set up
- Make an account here and link Google Calendar once. Then book the way you always do.
Three steps from Google Calendar to an SMS reminder
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Log in with Google, then tick your calendar
Use the Google account that holds your bookings. It can be your own calendar or one you're allowed to edit; unticked calendars stay untouched.
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Add the client's mobile to the booking
Type it into the title or description beside the client's first and last name. Etisia keeps the client on file, so next time the name alone is enough. Adding mobile numbers to bookings
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The SMS goes out at your chosen time
The default is the day before. You can also pick set times as early as a month ahead or as late as 15 minutes before, with up to 3 reminder times per calendar on any plan (choosing reminder times). Quiet hours come switched on: a send time between 22:00 and 07:00 moves earlier, to about 20:00. You'll see “(SMS ready ✅)” in the title, and “(SMS sent ✅)” once it's gone.
Prefer pictures? The setup guide has a screenshot for each step.
The whole setup, start to finish, on video
Follow Eric from his Google sign-in to the moment SMS reminders are switched on for his clients.
Beauty Studio: Hello, you have an appointment with us tomorrow, October 8, 2026 at 15:30.
What your client sees on their mobile
Your business name leads, then the day and the 24-hour time. This is the standard reminder for a 15:30 booking, sent the day before. The cancel link is off here, as it is on a new account.
- A plain SMS. Clients don't install or sign in to anything.
- An optional cancel link. Switch it on and a link is added at the end. The client follows it, types in the number the SMS went to and chooses “Yes, cancel the appointment”; the booking is removed from your Google Calendar and an email lets you know.
- One-way only. Clients can't text back, so they call you instead, or use the cancel link if it's on.
- Your wording, if you'd rather. Keep the standard text, pick another ready-made one or put it in your own words; the day, time and any event location are added for you.
Any Google Calendar appointment that has a mobile number on it
Phone bookings, walk-ins, messages and online bookings that land in Google Calendar all count. If the appointment sits in a connected calendar with the client's mobile, or a saved contact's full name, Etisia can send the SMS. It suits massage therapists, physios, hairdressers, trainers and tutors whose week lives in Google Calendar.
Etisia picks the number up from
- the appointment's title
- its description, location or guests
- a saved contact with the same full name
When no SMS goes out
- Etisia finds no number (the title shows this)
- the number has another country's code, such as +64 for New Zealand
- the appointment is all day
- the calendar isn't connected
- the appointment is deleted before its reminder time
- you've used up the month's SMS on your plan
Price in Australian dollars
Try it for 21 days without a card; you pay only after choosing a plan. Up to 60 free SMS come with setup, for trying reminders with real clients first. Prices are in Australian dollars, ex GST where applicable.
Starter
A$41/month
Billed yearly · A$490 ex GST where applicable
For sole operators who want reminders without a new booking routine.
- 1 Google Calendar
- Optional SMS about two minutes after you book
- 24/7 Monitoring
- Optional cancel link that emails you
- 25+ ready-made reminders you can edit
- Bring in contacts from your phone or vCard files
Pro
RecommendedFree for 21 days, no card needed
A$66/month
Billed yearly · A$790 ex GST where applicable
For busier diaries that need more calendars, run from Google Calendar.
- 3 Google Calendars
- Optional SMS about two minutes after you book
- 24/7 Monitoring
- Optional cancel link that emails you
- 25+ ready-made reminders you can edit
- Bring in contacts from your phone or vCard files
Team
A$249/month
Billed yearly · A$2,990 ex GST where applicable
For practices with several staff calendars or Google accounts. Priced around your calendars, country and reminder numbers.
- Unlimited Google Calendars
- 24/7 Monitoring
- Optional cancel link that emails you
- Several Google accounts
- Help with setup
- Priority support
Stop whenever you like. Bigger team or more calendars? See all the plans.
Prices are for Australian businesses, in Australian dollars, ex GST where applicable.
Comparing SMS reminder apps for Google Calendar?
Google Calendar has no way to SMS your clients, so most Australian businesses pick one of these. If your practice or booking software already sends reminders, you may not need anything else.
Calendar add-on with SMS credits
- Where your bookings sit Still in Google Calendar
- Setting it up Install it from the Marketplace, then buy credits
- Replies from clients Some allow two-way messages
- What you pay Credits you buy upfront
Practice or booking software
- Where your bookings sit Inside that software
- Setting it up You and your clients book through it instead
- Replies from clients Depends on the product
- What you pay A monthly subscription
- Where your bookings sit In the Google Calendar you already use
- Setting it up One Google sign-in and a calendar to pick
- Replies from clients None, but a cancel link is optional
- What you pay From A$41/mo billed yearly (ex GST where applicable)
Questions from Australian businesses
Short on time? Watch the setup video or go through the setup guide.
What does Etisia add to Google Calendar?
Is there a free plan in Australia?
How much does it cost in Australia, and is GST included?
How will my clients know the SMS is from me?
Can my clients reply to the SMS?
What do I need to get started?
Can I use a calendar someone else shares with me?
What other SMS reminder apps work with Google Calendar?
Who is it for?
For businesses that book time with people. Find your profession and see how SMS reminders fit your day. Unlike a booking system, there are no services, staff or business hours to set up: add the appointment with the client's phone number and Etisia sends the reminder.
Swipe or use the arrow keys to browse professions. Scrolling pauses while you explore the cards.
Text yourself a test reminder
Connect Google Calendar and pick Immediate as the timing. During the day, book yourself in for an hour or two later, with your own mobile in the title and a start time set. A couple of minutes after saving, the SMS is sent to you.