Turn Any Android Phone into a 2-Way SMS Gateway
Transform any Android smartphone into a high-throughput SMS gateway. Send & receive SMS via your local carrier SIM cards, run silent USSD commands, and trigger webhooks in real time.
Powerful Hardware Gateway Capabilities
Built with Kotlin, Coroutines, and modern Android Telephony APIs for maximum throughput and 24/7 reliability.
Dual-SIM Support
Route messages selectively via SIM 1 or SIM 2 using native SubscriptionManager support. Ideal for multi-carrier local routing.
Silent USSD Execution
Execute USSD shortcodes in the background without interactive popups. Capture balance, package status, and network responses instantly.
Firebase Cloud Messaging (FCM)
Instant push triggers wake the device immediately upon receiving dispatch requests from the cloud with millisecond latency.
Inbound SMS Forwarding
Incoming SMS messages received on your SIM are automatically captured and forwarded in real time to your dashboard and webhooks.
Instant QR Code Pairing
Pair your Android phone with your WhatsSMS account in seconds using our built-in CameraX + ZXing QR scanner. No password typing.
Uninterruptible Background Service
Dedicated foreground service with automated wake-locks ensures non-stop 24/7 background operation even during aggressive battery saving.
Monetize Your Device via the Partner Gateway Program
Have unused SIM SMS bundles? You can list your connected Android phone in the WhatsSMS Partner Gateway Network. You set the price per SMS in credits, and whenever other WhatsSMS users route SMS through your device, you automatically earn credits into your account balance.
Learn About Partners ProgramUnkillable Background Setup Guide
Modern Android OEMs aggressively kill background apps. Follow these simple device-specific steps to ensure your gateway stays alive 24/7.
Xiaomi / Redmi / POCO (MIUI / HyperOS)
Enable Autostart in App Info & set Battery Saver to 'No restrictions'.
Samsung (One UI)
Add WhatsSMS to 'Never sleeping apps' in Device Care -> Battery.
Huawei / Honor (EMUI)
Set App Launch to 'Manage manually' and enable Auto-launch, Secondary launch & Run in background.
Oppo / Realme (ColorOS)
Enable 'Allow background activity' and lock the app in recent apps drawer.
Vivo / iQOO (Funtouch OS)
Enable High background power consumption in Battery settings.
Android 15+
Grant SMS permissions after selecting 'Allow restricted settings' in App Info.
Get Started in 3 Steps
Download, scan, and start dispatching messages in under 60 seconds.
Download & Install APK
Download the official APK file directly to your phone and tap install (allow Unknown Sources or disable Play Protect scan).
Scan Dashboard QR Code
Open the app and scan the pairing QR code from your WhatsSMS Dashboard (SMS Gateway → Add Device).
Grant Permissions & Send
Grant SMS and Phone permissions, disable battery optimizations, and your device is ready to send and receive messages.
Download the WhatsSMS Android Gateway
Start routing bulk and transactional SMS through your local mobile carrier bundles today.
Having trouble with APK permissions or battery optimization? We'll unblock you live on a free 30-min call.