GSM Signal Monitor & SIM Card Info 📱

Contains Ads
Offers in-app purchases

Ever wanted to call someone, but your phone has no GSM coverage?

Or you are living / working in a low signal area?

'GSM Signal Monitor' monitors the phone (or tablet with SIM card) signal strength and alerts you when you are out of service ⚠️ or in a low signal zone.

No signal / low signal alerts include: voice notifications, vibration, notification on the device screen and playing a ringtone. You can personalize how you get notified in the app settings.

'GSM Signal Monitor' can also notify you when the signal is restored, your mobile data is lost you are in a roaming area.

The app also provides information about device SIM cards such as phone number, voice mail number, SIM Card Serial number (ICCID), Subscriber Id (IMSI), mobile operator info and network type. This SIM card info can be easily shared by tapping on the share button or copied in the device clipboard.

‘GSM Signal Monitor’ logs 📋 every signal related event in its notifications log. The notification log keeps information when the GSM signal is lost, restored or low. It also logs information when the mobile data is lost or roaming is active. You can configure what’s logged in settings. The log can be exported in CSV, PDF and HTML formats.

You can monitor your signal strength as it changes dynamically from the app main screen or in the notification area.

✅ Notifications when the signal is lost / restored
✅ Notifications when you are in a low signal zone (available as in-app purchase)
✅ Log events when data connection is lost or device enters roaming
✅ Customizable log export in CSV, PDF and HTML formats. (available as in-app purchase)
✅ Detailed SIM card info
✅ 4G (LTE) signal monitoring
✅ Dual / multi SIM devices support (requires Android 5.1 or newer)
✅ Quiet hours (the app can be configured to suppress its notification during specified time period)
✅ Real time information about the GSM signal strength and quality in decibels (dBm)
✅ Starting the app when the device starts
✅ App shortcuts.
✅ Great number of configuration options

!GSM Signal Monitor is NOT a signal booster app!

GSM Signal Monitor web page:

Thank you for choosing GSM Signal Monitor & SIM Card Info, we hope you like it! Let us know what you think in the review section or drop us a quick e-mail at

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What's New

We are constantly working on improving our apps and smashing nasty bugs. This release features option to switch between enhanced and simple service notification styles (available for Android 7 and newer), stability and performance improvements.

We’ve made GSM Signal Monitor better than ever! Let us know what you think in the review section or drop us a quick e-mail at
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Additional Information

June 1, 2021
Current Version
Requires Android
4.1 and up
Content Rating
Interactive Elements
Digital Purchases
In-app Products
$0.99 - $3.99 per item
Offered By
9010 Varna, Varna, Bulgaria Chaika Residential Quarter, Building 28, Entrance V, 5th Floor, Apt. 57
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