Google Calendar Extension

Your calendar already knows what matters.
Calendar Force makes sure people show up.

Schedule SMS reminders directly from Google Calendar using reusable templates, automated delivery queues, and full reminder visibility. Stop manual follow-ups.

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Installed in minutes. Works with your existing calendar immediately.

Calendar Force

Extension Panel

Dental Cleaning - Dr. Martinez

Tomorrow at 10:30

+1 (555) 847-2391
1 day before + 2 hours before
2 reminders scheduledReady

SMS Delivered

2 minutes ago

Works inside Google Calendar
Designed for teams
SMS delivery infrastructure
Timezone aware
Auditable reminder logs

How it works

Three simple steps to automated SMS reminders. No technical setup required.

01

Connect your calendar

Install the extension and sync events instantly. One-click authorization with your Google account.

02

Attach reminder templates

Choose reusable offsets like 1 day before, 2 hours before, or 15 minutes before. Define once, apply everywhere.

03

Send automatically

Calendar Force queues and delivers SMS reminders exactly on schedule. Full delivery visibility included.

Product architecture

Three integrated surfaces for complete reminder management.

Extension Panel

Google Calendar native

Landscaping Service

Today, 09:00

HVAC Maintenance

Tomorrow, 14:00

24h + 1h before

Web Dashboard

Manage all reminders

24

Scheduled

156

Sent

3

Failed

Plumbing Repair
Pending
Dental Checkup
Sent
Pet Grooming
Failed

Delivery Logs

Full audit trail

+1 555-0123

Roof Inspection

2026-03-08 09:00:00delivered
+1 555-0456

Orthodontist Appt

2026-03-08 08:45:12delivered
+1 555-0789

Pool Cleaning

2026-03-08 08:30:00retry_pending

Built for real operations

Not manual follow-up chaos. Infrastructure-grade reliability for businesses that depend on attendance.

Delivery Pipeline

Pending24
Processing3
Sent1,234
Failed12

Scheduled queue processing

Enterprise-grade job scheduler ensures reminders fire precisely when configured.

Delivery retries

Automatic retry logic with exponential backoff for failed deliveries.

Reminder status tracking

Real-time visibility into pending, sent, and failed reminder states.

Observability-ready logs

Structured logs ready for your monitoring and alerting infrastructure.

Billing-safe ownership

Clear event ownership model prevents duplicate charges and confusion.

Event-level metadata

Complete delivery metadata attached to every event for audit trails.

Reusable reminder templates

Define reminder logic once and apply it across all your events. No more manual scheduling for every appointment.

Flexible time offsets

Configure any combination: 1 day, 2 hours, 30 minutes before the event.

Template reuse

Apply the same template to multiple events with one click.

Missing phone detection

Automatic warnings when events lack phone numbers for SMS delivery.

Template Configuration

1 day before
2 hours before
15 minutes before

Reminder: Your meeting "Q1 Review" starts tomorrow at 14:00. Reply STOP to unsubscribe.

Missing phone number

2 events in this batch have no phone number attached.

Built for professionals who need reliability

From healthcare to field services, Calendar Force helps teams reduce no-shows and save time.

Medical clinics

Reduce no-shows with automated appointment reminders. Patients receive timely SMS notifications before their scheduled visits.

40%fewer no-shows

Consultants

Never chase clients for meeting confirmations again. Automated reminders keep your calendar running smoothly.

2hrssaved per week

Field teams

Coordinate site visits and service appointments across distributed teams with reliable delivery.

95%on-time arrivals

Service businesses

Handle high appointment volumes without manual follow-up. Scale your operations with automated reminders.

500+reminders/month

Buy credits, send reminders

No subscriptions. Credits never expire. Track your balance and usage in real-time.

All prices in Australian dollars, excluding GST. 10% GST is added at checkout.

Your credit balance

342credits available
158 used this month68% remaining

SMS reminder credits

1 credit = 1 reminder sent.

Starter

Perfect for testing or low volume

$9.99AUD

excl. GST — $10.99 incl. GST

50 credits

$0.20/credit

  • 50 reminder credits
  • Never expires
  • All templates included
  • Full delivery logs

Standard

For small practices and solo businesses

$34.99AUD

excl. GST — $38.49 incl. GST

200 credits

$0.17/credit

  • 200 reminder credits
  • Never expires
  • All templates included
  • Full delivery logs
Most popular

Pro

Best value for growing businesses

$74.99AUD

excl. GST — $82.49 incl. GST

500 credits

$0.15/credit

  • 500 reminder credits
  • Never expires
  • All templates included
  • Full delivery logs

Business

For high-volume operations

$119.99AUD

excl. GST — $131.99 incl. GST

1,000 credits

$0.12/credit

  • 1,000 reminder credits
  • Never expires
  • All templates included
  • Full delivery logs

Invoice tokens

A separate pool for generating invoices. 1 token = 1 invoice. Individual manual invoice creation is free. Bulk creation and automated invoicing cost 1 token each.

20 Tokens

Enough to try invoicing end to end

$2.00AUD

excl. GST — $2.20 incl. GST

20 tokens

$0.10/token

  • 20 invoice tokens
  • 1 token = 1 invoice
  • Works with bulk invoicing

100 Tokens

For steady month-to-month invoicing

$10.00AUD

excl. GST — $11.00 incl. GST

100 tokens

$0.10/token

  • 100 invoice tokens
  • 1 token = 1 invoice
  • Works with bulk invoicing

500 Tokens

For high-volume invoicing

$50.00AUD

excl. GST — $55.00 incl. GST

500 tokens

$0.10/token

  • 500 invoice tokens
  • 1 token = 1 invoice
  • Works with bulk invoicing

Frequently asked questions

Everything you need to know about Calendar Force.

Your calendar already contains the schedule.
Add the reliability layer.

Stop chasing people manually. Let Calendar Force handle automated reminders while you focus on what matters most.

Google-native setup
No workflow migration
Free trial included