Install an app, set it as the default messaging app and you're ready — the phone automatically sends SMS messages from the SMSAlert platform, from your number, via your SIM. Zero cost per message.
No need to configure servers, no hardware to ship anywhere. The phone you already have in your company becomes part of your messaging infrastructure.
Search for "SMSAlert Sync" in the Google Play Store and install it on any Android phone — the model or Android version doesn't matter.
Android asks you to choose the main SMS app. Select SMSAlert Sync — from now on, all SMS messages sent and received on that phone go through the platform.
The app automatically links to your account. The phone appears instantly in the dashboard as an active sending channel.
SMS messages generated by the SMSAlert API are automatically delivered via that phone's SIM. The recipient sees your number — not an aggregator number.
SMS infrastructure with no hardware investment, starting from a phone you already own.
Any Android in your company can become a gateway. No new equipment to buy, no waiting for delivery — install the app and you're up and running in a few minutes.
Your customers see your company's real number, not a generic operator or aggregator number. Their replies arrive directly in your SMSAlert inbox.
You pay your SIM subscription to your carrier and that's it. Regardless of volume, the monthly cost stays fixed and predictable.
High volume? Add more phones with SMSAlert Sync and the platform automatically distributes messages among them — each phone at optimal capacity.
If you've already integrated the SMSAlert API, you don't change a single line of code. Activate the app in the dashboard and messages are automatically routed via your phone.
SMS messages received on the Sync phone appear automatically in your SMSAlert conversation inbox. Your team replies from the platform, without touching the physical phone.
SMSAlert Sync works best when the phone is permanently plugged in and kept active. Android intelligently manages battery consumption on idle phones, which can affect the exact delivery time during periods of inactivity. For applications where every second matters — such as OTP or alarms — we recommend either keeping the phone plugged in, or using the hardware GSM modem, designed specifically for non-stop availability.
Both use your SIM and the same API. The difference is in the use case and the level of availability required.
You can combine both — Sync as the primary channel, hardware as the dedicated backup channel.
Discover the Hardware GSM Modem →Practically any Android from the last 6 years. You don't need a new or high-performance phone — the app is lightweight and works even on budget models.
Still have questions? Write to us directly.
Activate the Business plan, download SMSAlert Sync and in a few minutes you'll be sending automated SMS messages from your number, via your SIM.
No hardware. No complicated setup. Active in a few minutes.