GSM Signal Monitor Version History

Version 1.6.28 (Sep 20, 2026)

• Improved privacy and ad consent handling. The app now respects your ad choices more reliably and continues working normally when ads are unavailable.
• Added support for Android 17.
• Minimum supported Android version is now 8.0.
• Includes bug fixes and performance improvements.

Version 1.6.27 (Mar 30, 2026)

• Signal quality is now also displayed in ASU (Arbitrary Strength Units).
• Updated Google Maps to v20.0.0 and refreshed other dependencies.

Version 1.6.26 (Feb 4, 2026)

• Adds support for Android 16
• Horizontal orientation support

Version 1.6.25 (Aug 8, 2025)

• Bug fixes and performance improvements

Version 1.6.24 (Mar 27, 2025)

• Updated Help section with documentation on how the “Notify Me” setting works
• Fixed a bug in the log export date filter that allowed future dates to be selected
• Feedback form now remembers your email address
• Improvements to in-app purchases
• Minimum supported Android version is now 6.0

Version 1.6.23 (Jan 13, 2025)

• Introduces an alternative way to access your SIM card’s ICCID on Android 10 and newer
• Adds a new field to the “SIM Information” screen: Software Version
• Updates the help section to document the SIM Information screen
• Bug fixes and performance improvements

Version 1.6.22 (Oct 29, 2024)

• Adds support for Android 15
• Bug fixes and performance improvements

Version 1.6.21 (Oct 1, 2024)

• Significantly improves the logging and monitoring capabilities of the app, including revamped event logging and enhanced detection for signal lost/restore/low.
• Fixes a bug where 'data connection lost' event won't be reported on some devices
• Support for adaptive icons
• Various bug fixes and performance enhancements
• The minimum supported Android version is now 5.1.

This release lays a solid foundation for the exciting new features coming soon. Please note that we will be transitioning to a subscription-based model for the paid app features in the near future.

Version 1.6.20 (Apr 21, 2024)

• Adds support for Android 14
• Bug fixes and performance improvements

Version 1.6.19 (Apr 8, 2024)

• Introduces the 'Cells' feature, providing you with comprehensive and up-to-date information about cell towers worldwide
• Fixes a bug with the 'Alarms and reminders' permission request on Android 14
• Turkish translation

Version 1.6.18 (Feb 5, 2024)

• Introduces new visual style for the app
• Adds "Adaptive color" support (Android 12 or newer)

Version 1.6.17 (Jan 13, 2024)

• Introduces a set of features that will help us better assist you if you have problems with the app. (disabled by default, navigate to the app "About" section to enable.)
• Introduces an experimental workaround for manufacturers "battery saving" features. This handle the case where the app stops by itself after some time, as reported by some of our users. (disabled by default, navigate to the app "About" section to enable.)
• Adds consent for personalized Ads as required by EU GDPR
• Dropped support for Android versions lower than 5.1 (Lollipop)

Version 1.6.16.1 (Nov 4, 2023)

• Bug fixes, performance and UI improvements.

Version 1.6.16 (Oct 31, 2023)

• Improves 5G support (for Android 12 and newer)
• Improves network type discovery
• Better handling for 'Do Not Disturb' exclusions list
• Option to delete a single log entry
• Stability and performance improvements.

Version 1.6.15 (Jun 29, 2023)

• Stability and performance improvements

Version 1.6.14 (Apr 29, 2023)

• Option for playing ringtone and vibrating when signal is restored.

Version 1.6.13 (Apr 5, 2023)

• Improved eSim support
• Android 13 support

Version 1.6.12 (May 12, 2022)

• Stability and performance improvements

Version 1.6.11 (Apr 16, 2022)

• Stability and performance improvements

Version 1.6.10 (Apr 5, 2022)

• Enhanced 'Log Export' UI with a date filter.
• New payment method for log exports: Rewarded Ad

Version 1.6.9.8 (Aug 8, 2021)

• Option for the app to stop when the device battery is low and automatically start when the battery is sufficiently charged.
• Option to quickly access 'Mobile network' settings from the sidebar.

Version 1.6.9.7 (Jul 21, 2021)

• Fixed a bug where 'Signal Low' notifications would automatically re-enable upon the next app launch.

Version 1.6.9.6 (Jun 20, 2021)

• Fixed bug where the data connection events don't honor the enabled / disabled setting

Version 1.6.9.5 (Jun 2, 2021)

• Option to switch between enhanced and simple service notification styles (available for Android 7 and newer)
• Stability and performance improvements

Version 1.6.9.4 (May 16, 2021)

• Dark mode support

Version 1.6.9.3 (May 2, 2021)

• UI changes
• Option to send us your valuable feedback
• Stability and performance improvements

Version 1.6.9.2 (Apr 19, 2020)

• Android 10 support
• 'No interruption' mode while using your device
• Bug fixes, performance and UI improvements.

Version 1.6.9.1 (Jan 24, 2020)

• Support for copy to clipboard in event details screen
• Log pagination and speed improvements

Version 1.6.9 (Dec 31, 2019)

• Log export in CSV, PDF and HTML formats
• Bug fixes, performance and UI improvements.

Version 1.6.8.1 (Nov 23, 2019)

• Bug fixes, performance and UI improvements.

Version 1.6.8 (Nov 16, 2019)

• Events details screen.
• Events location information.
• Bug fixes, performance and UI improvements.

Version 1.6.7.4 (Aug 27, 2019)

• Improved roaming support
• Bug and crash fixes, also many improvements under the hood.

Version 1.6.7.3 (Aug 11, 2019)

• The app will inform you when you are in 'quiet hours' or system do not disturb is active.
• SIM info screen now displays live data of the selected SIM card signal strength.
• You can now open the notifications log for a particular SIM card from the SIM info screen and open SIM info screen from the notifications log.
• You can now open 'Settings' from an app shortcut.
• Bug and crash fixes, also many improvements under the hood.

Version 1.6.7.2 (Jul 25, 2019)

• Ability to open the 'Notifications log' directly from the app notification
• App shortcuts support
• Bug fixes and performance improvements

Version 1.6.7.1 (Jun 30, 2019)

• Bug fixes and performance improvements

Version 1.6.7 (Jun 27, 2019)

• App renamed from NoSignal to GSM Signal Monitor & SIM Info
• Bug fixes and performance improvements

Version 1.6.6 (Jun 23, 2019)

• Dual SIM devices support for Android 5.1 and up
• Sim card information
• New log events
• Redesigned settings and log screens
• Many improvements and bug fixes under the hood.

Version 1.6.5 (Dec 31, 2017)

• Various fixes and improvements
• Dropped support for Android versions lower than 4.1 (Jelly Bean)

Version 1.6.4 (Jun 5, 2017)

• Bug fixes and performance improvements

Version 1.6.3 (May 31, 2017)

• Signal low notifications (paid feature)
• Voice notifications for 'signal lost' and 'signal restored' events.
• The app can now notify you when the GSM signal is restored.
• Quite Hours (the app can be configured to suppress it's notification during specified time period)
• Information about the GSM signal strength in decibels (dBm)

Version 1.6.2 (Feb 7, 2017)

• Fixed typo in Russian translation

Version 1.6.1 (Jan 15, 2017)

• Bug fixes and performance improvements.

Version 1.6 (Jan 9, 2017)

• You can now remove the ads from the app.
• Interface improvements

Version 1.5 (Oct 5, 2016)

• New app visual style
• Compatibility with Android 5.x and up
• Fixed bug when clicking over the app notification in the notification area
• GSM Signal monitor will now log (optional) information when the phone is entering roaming state and changes in your mobile data connectivity.
• Fixed bug when no notifications will be made on some devices
• New Google play services version

Version 1.4.3 (Jun 3, 2016)

• Fixed bug where 'Notifications Log' is enabled in settings, but events are not logged.
• Fixed bug where the app will crash if the ring tones are located on the SD card.

Version 1.4.2 (Nov 11, 2014)

• Dropped support for Android versions lower than 4.0 (Ice Cream Sandwich)
• App renamed from NoService to NoSignal

Version 1.4 (Jun 16, 2014)

• Bug fixes and performance improvements.

Version 1.3.1 (Apr 21, 2014)

• Fixed crash on HTC Incredible S with Android 2.2 (Froyo)

Version 1.3 (Apr 17, 2014)

• Android 2.x support
• Optimizations for small screen sizes
• Bug fixes

Version 1.2 (Feb 21, 2014)

• Fixed crash when selecting a ring tone on Samsung Galaxy phones.

Version 1.1 (Feb 2, 2014)

• Fixed crash when trying to delete empty notifications log.

Version 1.0 (Jan 26, 2014)

• First release