AppointmentSMS — Free via Gmail

by ailearningting · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 21 Oct 2026

Send free appointment SMS reminders via your Gmail + carrier email gateways. No paid services needed.

Users

−15 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#158K

#132K among extensions

Version

2.3.0

updated 23 May 2026

Users

monthly, 6 months

Latest, 21 Oct 2026: 19 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 months

Latest, 21 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About AppointmentSMS — Free via Gmail

AppointmentSMS lets you send personalized SMS appointment reminders in bulk — completely free, using your existing Gmail account. HOW IT WORKS Upload an Excel or CSV file with patient/client names, phone numbers, and appointment times. The extension emails each person's carrier gateway, which delivers it as a real SMS to their phone. FEATURES ✓ 100% free — no Twilio, no paid SMS service required ✓ Supports all major US carriers via email-to-SMS gateways ✓ Supports all major Canadian carriers via email-to-SMS gateways ✓ Full carrier reference list available inside the extension ✓ Auto-detects carrier or tries all gateways automatically ✓ Customizable message template with {name} and {time} placeholders ✓ Save multiple named templates for different appointment types ✓ Upload history with CSV export ✓ Live send log with per-contact status ✓ Supports .xlsx, .xls, and .csv files