Integrate SMS reminders with the tools you already use
Sync appointments from Google Calendar, Outlook, iCloud, connect 8,000+ apps through Zapier, or build custom integrations with our API. Automate appointment reminders and reduce no-shows without manual work.
Google Calendar SMS Reminders
Connect once, then forget about it. New calendar events automatically become contacts with scheduled SMS reminders. No manual data entry - reduce no-shows on autopilot.
One-click connection - takes under a minute
Background sync runs automatically every few minutes
Works with your existing campaigns and reminder schedules

AI Appointment Scanner
NewSnap a photo of your paper diary, appointment book, or handwritten notes. Remindlo's AI reads it and creates SMS reminders in 30 seconds - no typing required.
Works with handwritten notes, printed schedules, and diary pages
Automatically extracts names, dates, and phone numbers
Creates contacts and schedules appointment reminders instantly

Outlook & iCloud SMS Reminders
NewDon't use Google Calendar? No problem. Connect any calendar that publishes a public ICS URL - paste it once, Remindlo handles the rest. Sync runs every 30 minutes in the background.

Calendar & email suites
- Microsoft Outlook / 365
- Apple iCloud
- Fastmail
- Yahoo Calendar
- Proton Calendar
- Zoho Mail
Webmail & hosting
- Nextcloud
- IONOS, GoDaddy, Krystal Hosting
- FastHosts, 123-Reg, Hostinger
- cPanel / Roundcube installations
...and any other iCalendar-compatible calendar with a public publish URL.
Calendly SMS Reminders
Automatically send SMS reminders for every Calendly booking. Reduce no-shows by keeping clients informed before each appointment.
Cal.com SMS Reminders
Add SMS appointment reminders to your Cal.com bookings. Clients get a text before their appointment so they never forget.
Acuity Scheduling SMS Reminders
Send SMS reminders for every Acuity Scheduling appointment. Cut no-shows and keep your calendar running smoothly.
Google Sheets SMS Reminders
Import contacts from a spreadsheet and send SMS reminders automatically. Perfect for bulk appointment lists and client databases.
Zapier - 8,000+ App Integrations
Connect Remindlo with 8,000+ tools through Zapier. Automatically create contacts and trigger SMS appointment reminders from your CRM, booking system, form builder, or any app your service business already uses.
New Calendly booking → SMS appointment reminder
New HubSpot deal → SMS follow-up campaign
Typeform submission → appointment reminder
Claude AI - Manage Reminders by Chat
Manage contacts and SMS reminder campaigns directly from Claude Desktop. Add appointments, look up customer details, and enroll people into automated reminder campaigns - all through natural conversation.
Try saying:
"Add John Smith, phone +447912345678, to the Appointment Reminder campaign"
"Show me all contacts due for appointments this week"
"What info do we have for +447912345678?"
SMS Reminder API
Connect your booking system, CRM, or any custom tool to automate SMS reminders. Create contacts, enroll them in campaigns, and keep appointment data in sync programmatically.
Upsert contacts with phone, email, and appointment dates
Enroll contacts into campaigns automatically
Query contacts and campaign data with simple requests
SMS Webhooks - Real-Time Delivery Notifications
Get instant notifications when SMS reminders are delivered, contacts are updated, or campaigns change. Receive real-time HTTP callbacks to keep your systems in sync automatically.
Real-time delivery status updates for every SMS
Signed payloads with automatic retries
Full delivery history and logs in your dashboard
Powered by AI & Automation
All Remindlo integrations are enhanced with AI. From automatic SMS reminder template generation to intelligent campaign scheduling, AI works behind the scenes to reduce no-shows and grow your service business.
Explore AI featuresReady to automate your appointment reminders?
Start with Google Calendar for quick wins, connect 8,000+ apps through Zapier, or build custom SMS reminder integrations with the API. Reduce no-shows from day one.