No-shows cost Australian retailers and hospitality businesses thousands every month. Monster SMS sends automated booking confirmations, reminders, and promotional texts straight from your Square account via Zapier.
Free plan available. No credit card required. 5c per message on paid plans.
Square and SMS: built for customer-facing businesses
Square is one of the most widely used point-of-sale and appointment management platforms in Australia, trusted by salons, barbershops, cafes, retail stores, and fitness studios across the country. It handles payments, appointments, and customer records in one place. The one thing Square does not do well out of the box is SMS. Most Square businesses rely on email notifications that customers rarely read, or they depend on staff to manually call and confirm bookings. That leads to no-shows, wasted time, and lost revenue. By connecting Square to MonsterSMS.ai via Zapier, you can send instant booking confirmations, day-before reminders, and promotional texts to your customer list without any manual effort. It is the missing piece that turns Square from a payment tool into a full customer communication platform.
Sound familiar?
A no-show in a salon or clinic does not just waste one slot. It disrupts the whole day and means lost income you cannot recover. SMS reminders cut no-shows by up to 40 per cent.
Retail and hospitality businesses live on repeat customers. If someone has not visited in 60 days, they may not come back. A well-timed SMS promo brings them in the door.
Square's built-in email marketing competes with hundreds of other messages in your customers' inboxes. SMS has a 98 per cent open rate and is typically read within 3 minutes of delivery.
What you can do with Monster SMS and Square
The moment a Square appointment is booked, Monster SMS fires a confirmation text with the date, time, and business name. Customers feel confident and your no-show rate drops immediately.
Automatically send a reminder 24 hours before every appointment. Customers can reply to confirm or cancel, giving you time to fill the slot rather than lose it entirely.
Send bulk SMS promos to your Square customer list. Flash sales, holiday specials, loyalty rewards. SMS campaigns convert at 8 to 10 times the rate of email for retail and hospitality businesses.
When customers reply to your SMS, Monster SMS can handle common questions automatically. Opening hours, rebooking requests, and pricing queries answered without involving your team.
How it works
Link your Square account to MonsterSMS.ai through Zapier. Choose your trigger, such as "New Appointment" or "New Customer". No developers needed. Takes around 10 minutes.
Write your booking confirmation and reminder messages once. Use Square fields like customer name, appointment date, time, and business name to personalise every message automatically.
Every new Square booking triggers the right SMS at the right time. Confirmations go out instantly. Reminders go out 24 hours before. Promos go out when you schedule them.
Example workflow
"Hi {name}, your appointment at {business} is confirmed for {date} at {time}. Reply YES to confirm or call us to reschedule. See you soon!"
Fields like {name}, {business}, {date}, and {time} are pulled directly from your Square appointment data via Zapier.
Trusted by Australian retail and hospitality businesses
"We run a hair salon in Sydney and no-shows were costing us $600 a week. After connecting Square to Monster SMS, no-shows dropped to almost nothing. The booking confirmation text makes customers actually show up."
Priya S. : Salon owner, Sydney NSW
API Integration
Monster SMS is more than a messaging tool. It is a full platform with 35 API endpoints across SMS, Contacts, Lists, AI Agents, Conversations, and Templates.
curl -X POST https://app.monstersms.ai/api/sms/send \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_API_KEY" \
-d '{
"to": "+61400000000",
"content": "Hi Claire, reminder your appointment at Glow Studio is tomorrow at 11am. 48 Queen St Brisbane. Reply STOP to opt out.",
"senderId": "GlowStudio"
}'
Blast promotional offers to your full client list or a targeted segment in one request.
Build reusable booking reminder and promo templates with client name variables.
Organise clients into lists by service type, visit frequency, or location for targeted messaging.
Export your full contact database as a CSV at any time for reporting or backups.
Simple, transparent pricing
Top-ups available from 5.5c per message. Free plan includes 100 msgs/month, no credit card required.
Other SMS options for Square users include Podium (from $289/month). MonsterSMS.ai starts at 5c per message with no monthly minimum.
Frequently asked questions
Square does send some automated email reminders for appointments, but its SMS capabilities are limited and primarily available in the US market. For Australian businesses wanting full SMS functionality, including two-way messaging, bulk promos, and Spam Act compliant sending, MonsterSMS.ai connected via Zapier is the best option.
The connection runs through Zapier. You set up a Zap with a Square trigger (such as "New Appointment" or "New Customer") and a MonsterSMS.ai action to send an SMS. A free Zapier account is enough to get started. The whole setup takes around 10 minutes and requires no technical knowledge.
Yes. You can export your Square customer list and upload it into MonsterSMS.ai to send promotional campaigns. All messages include opt-out management and comply with the Australian Spam Act 2003. You can segment by purchase history, visit frequency, or location to target the right customers at the right time.
Via Zapier, you can trigger SMS from Square events including new appointment booked, appointment cancelled, new customer added, new sale completed, and new invoice sent. You can also set up time-based delays in Zapier to send reminders a set number of hours or days before an appointment.
You must have prior consent from customers to send them marketing SMS. Customers who book appointments or make purchases through Square are generally considered to have a commercial relationship with your business, but for marketing messages you should have explicit opt-in. MonsterSMS.ai includes opt-out management so customers can unsubscribe at any time, keeping you compliant with the Australian Spam Act 2003.
Connect Square with MonsterSMS.ai and send automated booking confirmations and reminders to every customer. Free to start. 5c per message on paid plans.
Start Free TodayFree plan available. No lock-in contracts. 5c per message on paid plans.