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- CellMapper Vs. Opensignal - 5G, 4G Speed Test
CellMapper vs Opensignal - 5G, 4G Speed Test Usage & Stats
CellMapper displays advanced 2G/3G/4G/5G (NSA and SA) cellular network information and can also record this data to allow you to contribute to our crowd-sourced coverage maps.
CellMapper works on both tablets and phones running Android 7.0 or higher.
Features
- Displays low level cellular network information data along with frequency band calculations (for some providers)
- Reads cellular frequencies and bandwidths on supported Android 7.0+ devices
- Displays a map of both coverage and individual tower sector coverage and bands
- Supports Dual SIMs devices
- Frequency calculator (GSM, iDEN, CDMA, UMTS, LTE, and NR)
Note: The data on the site and within the app is generated shortly after it is uploaded, it may take up to a few days to appear.
Currently supported networks:
- GSM
- UMTS
- CDMA
- LTE
- NR
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Permissions
Why does CellMapper need so many permissions?
"make and manage phone calls" - This is required to get low level network data from your device
"access to device location" - In order to map and contribute, we will need to know where the data was recorded from your device.
Older versions of Android:
android.permission.ACCESS_COARSE_LOCATION - To get CellID information
android.permission.ACCESS_FINE_LOCATION - To get GPS location
android.permission.ACCESS_NETWORK_STATE - To get Cellular network information
android.permission.INTERNET - To connect to server to download map data / upload data
android.permission.READ_EXTERNAL_STORAGE - To write external CSV file if no internet connection
android.permission.READ_LOGS - To read Samsung Field Test Mode data on Android 4.1 and earlier (despite what the dialog says, the app cannot read your browsing history unless your browser write it to the system log)
android.permission.READ_PHONE_STATE - To read info about airplane mode / network settings
android.permission.RECEIVE_BOOT_COMPLETED - To start at boot time (if enabled)
android.permission.VIBRATE - To vibrate on CellID change (if enabled)
android.permission.WAKE_LOCK - For phones that do not support 4.2+ CellID Support, to ensure they report correct data
android.permission.WRITE_EXTERNAL_STORAGE - To write external CSV file and debug report
- Google Play Store
- Free
- Tools
Usage Rank
#9,009
Try our NEW Connectivity Assistant feature using the “Connectivity Test” button!
Opensignal is a free to use, advert free mobile connectivity and network signal speed test app.
Connectivity Test & Assistant
Experiencing a network issue? Not sure what to do? Try running the new Connectivity Test. If an issue is discovered, the Connectivity Assistant will give you helpful tips on how to address the problem.
Speed test for mobile and Wifi internet
Opensignal speed tests measure your mobile connectivity and signal strength. Opensignal runs a 5 second download test, 5 second upload test and a ping test to provide a consistently accurate measurement of the internet speed you will likely experience. The speed test runs on common internet CDN servers. The internet speed result is calculated with the middle range of samples.
Video playback test
Slow video load time? Video buffering? More time waiting than watching? Opensignal’s video test plays a 15 sec video snippet to test and log load time, buffering, and playback speed issues in real-time to show you exactly what to expect with HD and SD videos on your network.
Connectivity and speed test coverage map
Always know where to find the best coverage and fastest speeds with Opensignal’s network coverage map. The map shows signal strength down to street level using speed test and signal data from local users. With network stats on local network operators, you can check coverage ahead of a trip, check the internet and download strength in remote areas, compare your network to other providers in the area, arrange the best local SIM.
Cell tower compass
The cell tower compass allows you to see which direction the closest or strongest signal is coming from, enabling you to more accurately use broadband and signal boosting technology.
Note: The cell tower compass uses aggregate data and accuracy issues can occur in certain areas. We’re striving to improve this feature and thank you for your patience.
Connection availability stats
Opensignal records the time you’ve spent on 3G, 4G, 5G, WiFi or had no signal at all. This allows you to see where you are getting the service you’re paying for from your network provider. If not, use this data and the individual speed tests to highlight connectivity and signal issues to your mobile network operator.
About Opensignal
We provide an independent source of truth in mobile network experience: A data source that shows how users experience mobile network speeds, gaming, video and voice services worldwide.
To do this, we collect anonymised data on the signal strength, network, location and other device sensors. You can stop this at any time in the settings. We share this data with network operators globally and others in the industry to drive better connectivity for all.
We encourage you to read our Privacy Policy: https://www.opensignal.com/privacy-policy-apps-connectivity-assistant
CCPA
Do Not Sell My Info: https://www.opensignal.com/ccpa
Permissions
LOCATION: Speed tests appear on a map and also let you contribute to network stats and network coverage maps.
TELEPHONE: To get more accurate data on dual SIM devices.
- Google Play Store
- Free
- Tools
Usage Rank
#3,974
CellMapper vs. Opensignal - 5G, 4G Speed Test ranking comparison
Compare CellMapper ranking trend in the past 28 days vs. Opensignal - 5G, 4G Speed Test
CellMapper#9,009
Opensignal - 5G, 4G Speed Test#3,974
Rank
CellMapper vs. Opensignal - 5G, 4G Speed Test ranking by country comparison
Compare CellMapper ranking trend in the past 28 days vs. Opensignal - 5G, 4G Speed Test
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April 11, 2026