Monitor cell signal strength and tower data in real time
4.15·6,182 reviews·500,000+ downloads
About Cell Signal Monitor
Cell Signal Monitor is a tools app developed by Alexander Kozyukov.
Download Statistics
Cell Signal Monitor has been downloaded 960 thousand times. In the last 30 days, the app was downloaded 2 thousand times.
User Ratings
Cell Signal Monitor is rated 4.15 out of 5 stars. The rating is based on 6.2 thousand ratings.
App Information
Cell Signal Monitor is FREE to download. The APK download size is 10.98 MB. The latest version available is 6.6.8. The last update was on August 4, 2026.
Technical Requirements
Cell Signal Monitor requires Android 5.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play July 2011.
Description
Cell Signal Monitor is a netmonitor for Android that shows the signal strength and quality of GSM, UMTS (WCDMA), LTE and NR (5G) cell towers in real time. An essential tool to check cell signal strength, measure mobile network speed and collect statistics about base stations near you.
CONNECTION OVERVIEW The Overview tab shows the connection status (in service / emergency calls only / out of service / radio off), roaming indicator, duplex mode (FDD/TDD) and network type (GPRS, EDGE, UMTS, LTE, NR and more) for each SIM card. Dual SIM devices are supported.
CARRIER AND CELL INFO • Carrier name, country code (MCC) and network code (MNC) • Current cell ID (CID) and area code (LAC/RNC/TAC) • Signal strength: RSSI for GSM/UMTS, RSRP and RSRQ for LTE/NR • Channel number (ARFCN), frequency band, CQI, BSIC, timing advance
REAL-TIME SIGNAL STRENGTH CHART A clear signal strength chart (RSSI/RSRP) updates every second: the higher the signal, the better the cellular connection at your location.
MOBILE INTERNET SPEED Download and upload speed charts let you check real mobile network speed — a built-in speed test. Download or upload a large file and watch the speed change on the chart. Maximum and average data speed are shown separately.
LOG AND STATISTICS The log tracks changes in cell ID and signal strength, plus monitoring start/stop events. The statistics tab shows which base stations were used most often, with minimum and maximum signal strength over the selected period. Data from every section can be exported (shared) to other apps.
WIDGET AND NOTIFICATION A home screen widget and a notification during background monitoring show the key cellular network parameters without opening the app.
Cell Signal Monitor is a handy tool for anyone who wants to check cell signal quality, find weak signal spots, track cell tower changes while roaming or traveling, and test mobile internet speed anywhere.
Recent changes: • Improved background monitoring stability • Fixed errors when saving signal strength measurements • More reliable log and chart export
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The app works fine and doesn't crash. The export log functionality works as long as the phone has only 1 SIM. With 2 SIMs however, the export never happens, even though it still manages to ask which SIM's log to export. Please fix this asap.
★★★★★Harsha Vardhan· Apr 20, 2020
Gives me a good graph of the signal strength, which helps me find the best spot for connectivity. I'd like to know how a user could make use of the tower information using the data given in this. Please provide some guidance on that.
★★★★★Logfire Creativ· Feb 20, 2023
One of the Few apps showing the frequency Band you're actually on. Although starting the App often it does nothing apart from showing the message "start the measuring service to display info about the network" ?
★★★★★Robert James· Jan 21, 2025
Very useful for location of optimal aerial placements when dual SIMs mobile service signals start tending towards not-spots in my rural location
★★★★☆Will o Gringo· Jan 30, 2021
A bit cumbersome to work through the settings and obtain functionality, but now seems to be displaying a notification displaying the strength information without even the necessity of the widget display.
★☆☆☆☆job 64· Apr 8, 2021
Gives me signal. The graph does nothing
★★☆☆☆Steve· Jul 2, 2023
On dual SIM phones on Stats screen cells information is scrolled out of view. Worse for SIM2 the ads hide the info. Maybe split into two screens, because as it is its unusable.
★☆☆☆☆Rio Wong· Jun 19, 2021
All other cell info apps show I'm connecting to other tower, but yours is connecting to a wrong tower. So disappointed and that is a wasting my time! Wish to see towers locations in a map.
Google Play Rankings for Cell Signal Monitor
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Technologies used by Cell Signal Monitor
16 permissions·16 libraries
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