Calendly fills your calendar. Monster SMS makes sure those meetings actually happen. Automated SMS reminders before every booking, sent directly to your client's phone.
Free plan available. No credit card required. Plans from $50/month.
Calendly is the scheduling tool of choice for consultants, coaches, freelancers, and sales professionals who need a frictionless way to book meetings. It removes the back-and-forth of finding a time, but it cannot guarantee the person actually shows up. Email confirmations and calendar invites work well for organised clients, but they fall flat when someone books on the fly and then forgets. Timezone confusion adds another layer of risk, particularly for Australian professionals working with interstate or international clients. An SMS reminder 24 hours before and again 1 hour before a meeting cuts through the noise in a way that email simply cannot. With a 98 per cent open rate and average read time under 3 minutes, SMS is the most reliable way to make sure your Calendly bookings actually convert into attended meetings.
Sound familiar?
Someone books a discovery call through Calendly, then simply does not show up. No message, no warning. You have wasted a slot that could have gone to a paying client.
An interstate or international client joins 30 minutes late because they confused timezones. A simple SMS with the meeting time in their local timezone prevents the confusion entirely.
Confirmation emails land in promotions folders and never get opened. SMS gets read. It is that simple. SMS reminders are the gap between a booked meeting and an attended one.
What you can do with Monster SMS and Calendly
Send SMS reminders 24 hours before and 1 hour before every Calendly meeting. Clients come prepared, show up on time, and you spend less time chasing no-shows.
When a client needs to cancel, an SMS with a reschedule link keeps the conversation going instead of losing the lead entirely. Recover bookings that would otherwise disappear.
Clients can reply to your SMS reminders and you receive their message instantly. Handle questions, confirm details, and manage last-minute changes without phone tag.
Monster SMS is built for Australian compliance. Every message includes opt-out handling and meets Spam Act 2003 requirements, so your reminders are both effective and legally sound.
How it works
Link your Calendly account to MonsterSMS.ai using Zapier. Choose your trigger (new booking, cancellation, or reschedule) and connect it to Monster SMS as the action. No coding, ready in under 10 minutes.
Write your reminder messages once. Include the invitee's name, meeting time, and Zoom or location link pulled directly from Calendly. Set up one reminder for 24 hours before and another for 1 hour before.
Every new Calendly booking triggers the reminder sequence automatically. No manual follow-up required. Your calendar fills and your no-show rate drops without extra work from you.
Real workflow examples
Trusted by consultants and coaches across Australia
"I run a coaching practice and Calendly was brilliant for booking sessions, but no-shows were killing my schedule. Adding SMS reminders through Monster SMS cut my no-shows by more than half. The setup through Zapier was straightforward and it just runs in the background now."
Nicole R. : Business coach, 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/conversations/start \
-H "Content-Type: application/json" \
-H "x-api-key: YOUR_API_KEY" \
-d '{
"agentId": "YOUR_AGENT_ID",
"phoneNumber": "+61400000000",
"message": "Hi Rachel, thanks for meeting with us today. I am here to answer any questions about what we covered. Just reply and I will assist you right away."
}'
Start intelligent post-meeting SMS conversations that qualify leads and book next steps automatically.
Use pre-built meeting confirmation and follow-up templates with attendee name variables.
Send one-off reminders or confirmations triggered by specific booking events in real time.
Receive delivery and reply callbacks to keep your scheduling and CRM tools fully in sync.
Simple, transparent pricing
Top-ups available from 5.5c per message. Free plan includes 100 msgs/month, no credit card required.
Frequently asked questions
Calendly does not send SMS reminders on standard plans. It sends email confirmations and calendar invites, but not text messages. By connecting Calendly to Monster SMS via Zapier, you can send automated SMS reminders before every booking, fully customised with your own message templates.
Use Zapier to connect the two platforms. Set up a Zap with Calendly as the trigger (such as "Invitee Created") and Monster SMS as the action to send an SMS. No coding is required. The full setup takes under 10 minutes and works on any Calendly plan.
Calendly's higher-tier plans include some SMS features in select regions, but these are limited in customisation and can be expensive for high-volume users. Monster SMS gives you full control over your message templates, with two-way replies included at no extra charge. Plans start from $50/month.
Send an SMS reminder 24 hours before the meeting and another 1 hour before. This two-touch approach catches people at different times and significantly reduces the chance they forget or lose track. Monster SMS lets you automate both reminders through a single Zapier workflow connected to your Calendly account.
Yes. Zapier triggers Monster SMS on multiple Calendly events including new bookings, cancellations, and reschedules. You can send a follow-up SMS to the invitee with a reschedule link, keeping the conversation going and recovering bookings that would otherwise be lost.
Connect Calendly with MonsterSMS.ai and send automated SMS reminders before every booking. Free to start. Plans from $50/month.
Start Free TodayFree plan available. No lock-in contracts. 5c per message on paid plans.