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About SignalCheck Pro

SignalCheck allows users to check the true signal strength of their connections. Unlike the standard Android signal bars, which often only display the voice signal strength, SignalCheck shows you detailed signal information about all of your device's connections, including 5G-NR, LTE (4G), 1xRTT CDMA, EV-DO / eHRPD, HSPA, HSDPA, HSPA+, HSDPA, HSUPA, and other GSM / WCDMA technologies. Data about your current Wi-Fi connection is also displayed, including signal strength, SSID, link speed, and IP address.

Support for dual-SIM devices is in development, coming soon.

Special thanks to S4GRU for their tremendous support of SignalCheck from the beginning! Visit http://www.S4GRU.com for up-to-the-minute information and discussions about Sprint's network upgrades, as well as talk about devices and other mobile networks. There is a lengthy SignalCheck forum discussion thread as well.

SignalCheck will display LTE Cell ID information on most devices running Android 4.2 or higher, and some HTC devices on earlier Android versions. SignalCheck was one of the first (if not THE first) Android apps to provide this information to users. LTE band and frequency information is available on compatible Android 7+ devices. LTE band information is also available on older devices connected to major US providers. Root access adds LTE frequency info on older devices.

SignalCheck also displays the current connection type along with the carrier name for each connection, even while roaming.

One of the best features of SignalCheck Pro are the notification icon(s). A user-customizable icon shows your data connection strength in the notification area at the top of the screen, and more details can be seen in the pulldown menu. Your signal strength is always at the top of the screen along with your other icons.. no need to open the app to check your connections. The icons are customizable, showing signal bars, connection type, digital signal strength in dBm, or connection type with signal strength. A secondary icon can be enabled to always display the 1xRTT signal for CDMA users. All of this is customizable from within the app!

SignalCheck Pro can also notify the user with optional audio, visual, and/or vibrating alerts when user-defined events occur, such as connections to particular LTE bands, complete signal loss, or site pattern matching.

"Neighbor" cells are displayed that are in range of your device, but you are not currently connected to.

Users can save a log of connected sites, and enter a "note" for each site that will be displayed in the app (ie "Springfield High School Tower"). Notes also display on neighbor cells.

SignalCheck Pro also provides direct access to advanced Android screens such as Engineering debug/data screens, Battery Info, Field Trial, Mobile Networks, Wi-Fi info, and more. These screens are already available on most Android devices, but are only accessible by special dialer codes.

Other features include the ability to automatically keep the screen on while SignalCheck Pro is in the foreground, display of your base station location (CDMA 1X site/sector location) street address and instantly show it in your favorite mapping app by tapping on it, and a home screen widget that shows current connection type and realtime signal strengths. Each widget field is color-coded so signal information can be checked with a quick glance.

A bonus feature is the option to quickly reset your data connections from within the app -- but your device MUST be "rooted" for this to work on Android 4.2 and up. This feature does not work on non-rooted devices.

We are always looking for feedback, including suggestions and bug reports.. compliments are always welcome too.

This app has also been referred to as Signal Check, Signal Check LTE, LTE Signal Check, LTE Checker, among other things.. it's just SignalCheck folks.

cellular, mobile, antenna, tower, site, Sprint, Verizon, AT&T, T-Mobile, HTC, Samsung, Galaxy, LG, Motorola, Google, Pixel, Nexus

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Frequently Asked Questions(FAQ)

What does SignalCheck Pro do?

SignalCheck Pro allows users to check the true signal strength of their connections and provides detailed signal information about all device connections, including 5G-NR, LTE, CDMA, HSPA, and other GSM/WCDMA technologies. It also displays information about the current Wi-Fi connection.

Can SignalCheck Pro support dual-SIM devices?

Support for dual-SIM devices is in development and will be available soon.

What is the significance of LTE Cell ID information in SignalCheck?

SignalCheck displays LTE Cell ID information on most devices running Android 4.2 or higher. It was one of the first Android apps to provide this information to users.

What are the features of the notification icons in SignalCheck Pro?

SignalCheck Pro offers user-customizable notification icons that display data connection strength in the notification area. More details can be seen in the pulldown menu, and the icons can be customized to show different signal-related information.

Can SignalCheck Pro notify the user of specific events?

Yes, SignalCheck Pro provides optional audio, visual, and vibrating alerts for user-defined events such as connections to particular LTE bands, complete signal loss, or site pattern matching.

Does SignalCheck Pro display "Neighbor" cells?

Yes, SignalCheck Pro displays cells that are in range of the device but are not currently connected to.

Can users save a log of connected sites in SignalCheck Pro?

Yes, users can save a log of connected sites and enter notes for each site, which will be displayed in the app. Notes also display on neighbor cells.

Does SignalCheck Pro provide access to advanced Android screens?

Yes, SignalCheck Pro provides direct access to advanced Android screens such as Engineering debug/data screens, Battery Info, Field Trial, Mobile Networks, Wi-Fi info, and more.

Does SignalCheck Pro have a feature to reset data connections?

Yes, SignalCheck Pro has a feature to quickly reset data connections, but it requires the device to be rooted for Android 4.2 and up.

Where can users provide feedback or report bugs for SignalCheck Pro?

Users can provide feedback, suggestions, and bug reports for SignalCheck Pro.
author
I dont know if the app is working
kevin barry
author
It is finally able to show me full 5G signal for my area on my Smartphone. Full 5G coverage were I live but, full 5G signal to very little to no 5G signal at all the split second I walk into my local Walmart...
Bryant Floyd
author
need an iOS version of this app- Now Shows NR 5G on my S20+ but not the frequency band it's using
joe mizner
author
(Update 12/02/2020) Great improvements over the years. Keep up the good work! (4/26/2015) All that shows is LTE1900 and no maps or info. Perhaps it should be mentioned that this is a Sprint app.
Don Wright
author
Very good app. I'm a nerd, and I really like the full details read out. You do have to make sure to exit the app manually, otherwise it'll drain your battery
Joshua Mikofsky
author
I love the app and have owned my copy for years. More recently I installed it on my wife's new S20 5G UW (VZW) and have been digging into those system shortcuts more. I was curious where I could learn more a...
Jane Blue