6 powerful tools, one platform

Features that make
you unstoppable

Every tool your team needs to send, receive, and automate SMS and WhatsApp at scale — without stitching together five different platforms.

Two-Way Inbox

SMS + WhatsApp

Conversations, not just messages

A unified inbox where every conversation lives — SMS and WhatsApp side by side in the same thread view. Assign threads to team members, add internal notes, and reply instantly. No more app-switching.

Inbox2 new
Online
SM
Sarah M.2m

Thanks! See you at 3pm

AK
Alex K.5m

Can I reschedule my appointment?

JP
Jordan P.12m

Yes, I confirm the shift for tomorrow

ML
Maria L.1h

What are your hours this weekend?

Type a message...
Campaign: Flash Sale
Live

Delivered

2,847

98.2%

Opened

1,923

67.5%

Replied

489

17.2%

Hourly delivery

12:00Now

SMS & WhatsApp Campaigns

SMS + WhatsApp

Send at scale

Target the right audience with segmented campaigns over SMS or WhatsApp. Schedule sends, A/B test messages, and track every delivery in real time.

2FA / OTP API

SMS + WhatsApp

3 lines of code

Drop-in verification for any app, delivered by SMS or WhatsApp authentication template. Rate limiting, auto-expiry, and retry handling included.

API Reference
POST
// Send a verification code
const response = await smessa.otp.send({
to: "+1234567890",
template: "Your code: {{code}}",
expiry: 300,
});
// Response
{
status: "sent",
expires_at: "2026-02-18T..."
}
Today's Shifts
Feb 18, 2026

Warehouse Lead

6:00 AM - 2:00 PM
Marcus R.

Delivery Driver

8:00 AM - 4:00 PM
Open

Floor Associate

2:00 PM - 10:00 PM
Priya K.
3 shifts broadcast to 24 workers2/3 filled

Shift Scheduling

SMS + WhatsApp

First-come, first-served

Broadcast open shifts to your team via SMS or WhatsApp. First-response locking ensures no double-booking - the first YES wins, everyone else is notified automatically.

Appointment Reminders

SMS + WhatsApp

Cut no-shows by 78%

Sync with Google Calendar or Outlook and let Smessa send automated reminders at the perfect moment — by SMS or WhatsApp. Patients confirm with a simple reply. Watch your no-show rate plummet.

Google CalendarOutlookiCalCustom webhook
Today's Appointments
Synced
Emma Wilson9:00 AM
Dental Checkup
Confirmed
James Chen10:30 AM
Follow-up
Confirmed
Olivia Brown2:00 PM
Consultation
Sending in 1h
No-show rate this month4.2% (down from 18%)
Automation Rules
3 active
When"STOP"
Opt-out + remove from lists
WhenNo reply in 24h
Send follow-up message
WhenNew subscriber
Welcome series (3 msgs)
When"HOURS"
Reply with business hours

Example workflow

Customer texts "INFO"Send product detailsWait 2 hoursSend follow-up offer

Automation Rules

SMS + WhatsApp

Your always-on assistant

Build powerful workflows without writing a single line of code. Trigger actions on keywords, time delays, or events, and reply over SMS or WhatsApp. Set it up once and let Smessa handle the rest 24/7.

Keyword triggers

Auto-reply to specific words or phrases

Time-based delays

Schedule follow-ups after X hours or days

Event-driven

React to sign-ups, purchases, or custom events

Why Smessa

Built different, on purpose

We didn't bolt features onto a legacy SMS gateway. We built every tool from scratch to work together seamlessly.

Sub-second delivery

Messages reach phones in under 1 second via direct carrier routes.

Bank-grade security

End-to-end encryption, SOC 2 compliance, and GDPR-ready infrastructure.

Global reach

Send to 200+ countries with automatic number formatting and compliance.

Real-time analytics

Track delivery, opens, and responses with live dashboards.

Built for teams

Assign conversations, share templates, and collaborate seamlessly.

Developer-first API

RESTful API with SDKs for Node, Python, Ruby, Go, and more.

Compare

Smessa vs. the rest

Feature
Smessa
Others
Two-way messaging
Limited
Visual campaign builder
No
Built-in OTP/2FA
Add-on
Shift scheduling
No
Calendar sync
No
No-code automations
Limited
Team collaboration
Enterprise only
Pay-as-you-go option
No
50M+
Messages Sent
99.9%
Uptime SLA
4,000+
Businesses
<1s
Avg Delivery

Works with your stack

REST API + SDKs for every major language. Webhooks for everything else.

Node.jsPythonRubyGoPHPREST API

Stop stitching. Start sending.

25 free messages. No credit card. Full access to every feature. See why 4,000+ teams already switched.