SMS Gateway API

Simpapp

In-app purchases

About this app

SMS Gateway API transforms your Android device into a powerful SMS automation tool.
Send and track SMS messages programmatically while keeping full control over your device
and SIM.

**KEY FEATURES:**

✓ Send SMS via API - Trigger SMS messages from your own server or app
✓ Delivery Tracking - Real-time webhooks for sent and delivery confirmation
✓ Incoming SMS Forwarding - Receive SMS notifications at your endpoint
✓ Auto-Reply - Send automatic replies when configured in your webhook response
✓ Keep-Alive Service - Reliable 24/7 background operation
✓ Firebase Integration - Secure cloud-based command and control
✓ Secure Authentication - Google Sign-In and API key management

**HOW IT WORKS:**

1. Configure your API endpoint and webhook URL in the app
2. Send SMS commands from your server using the Firebase Cloud Messaging API
3. Receive delivery status updates and incoming SMS notifications
4. Optionally auto-reply when your webhook returns a response

**IDEAL FOR:**

• Business notifications and alerts
• Two-factor authentication (2FA) systems
• SMS-based customer communication
• Appointment reminders and confirmations
• Automated order updates and tracking
• IoT device notifications
• Home automation and smart alerts
• Personal SMS routing and forwarding

**SECURITY & PRIVACY:**

✓ Uses your device's SIM card - No third-party SMS processing
✓ Secure HTTPS webhooks - Your data stays under your control
✓ Google Sign-In authentication - Industry-standard security
✓ All operations on your device - No cloud storage of messages
✓ Transparent permissions - Only what's needed for SMS automation
✓ Respects battery optimization - Efficient background service

**TECHNICAL DETAILS:**

• Requires Android 7.0 (API 24) or higher
• Works with any Android device with an active SIM card
• Integrates with Firebase Cloud Messaging (FCM)
• Supports HTTPS webhooks for data forwarding
• Real-time delivery status monitoring
• Automatic service restart after device reboot

**API DOCUMENTATION:**

Full API documentation and integration guides available at our website.
Learn how to integrate SMS Gateway API with your backend, mobile app, or
IoT platform.

**NOTES:**

• This app is not a default SMS handler
• SMS delivery depends on your carrier's network
• An active data connection is required for API commands
• Incoming SMS forwarding requires internet connectivity

**SUPPORT:**

For issues, feature requests, or integration help, visit our website or
contact our support team.

Start automating your SMS workflows today!