With OpenSignal you can map cellular coverage, find Wi-Fi hotspots, test and improve your reception & get faster data. ✓ Signal compass points you in the direction your signal is coming from, just walk towards it! ✓ WiFi map allows you to ...Read more
With OpenSignal you can map cellular coverage, find Wi-Fi hotspots, test and improve your reception & get faster data.
✓ Signal compass points you in the direction your signal is coming from, just walk towards it!
✓ WiFi map allows you to easily locate nearby public networks.
✓ Coverage maps allow you see the best/worst places for signal.
✓ Speedtest feature allows you to see the true speed of your connection (download, upload & latency)
✓ NetworkRank shows which carrier is best in your area
✓ See local cell towers
✓ Free and ad-free
You can also:
✓ Help improve our crowdsourced and impartial maps by contributing data.
✓ Share your findings and compare your connection with other users.
✓ View your history of signal readings
✓ Test upload, download and latency
✓ Save your data to SD card
✓ Signal booster for compatible phones
SMS Permission required to count the number of SMS sent to track your usage, SMS are never read (use a packet sniffer to check!)
Phone settings permission allows network reset on certain Android versions
Based on our community-generated data we are able to help keep you better connected by giving you a practical solution to the problems of slow mobile internet and dropped calls. Simply follow our signal compass to walk towards better phone signal or see our in-app coverage maps to work out which carrier is best for where you are, useful if you're thinking about changing. Our wifi maps help you find local public-access wireless networks (WAPs).
We use Google Maps in our apps, email us if you cannot access Google Maps, email us to request another map technology.
The Stats tab helps you to keep track of your usage, so there’s no danger of you going over your plan limit on data, voice or text. (NB – this is why the app needs permission to access contacts and SMS, these are the permissions needed to count calls and texts, messages are never accessed or read!).
Maps not updated in real-time. Don’t worry though, we log the information you share with us to improve our coverage maps and signal information. We’re working hard to make sure the data you contribute to the project is available to everyone as quickly as possible.
Tips: - Not all towers and wireless routers are in our database - we’re working on it! - Verizon & Sprint (CDMA) users will see only one connected tower at a time - Moving in the direction of your cell tower (the signal compass) will not always improve reception due to interference effects/local geography.
Advanced notes: - For GSM, cell tower are identified via cell id and location area code (CID and LAC) - For CDMA cell towers are identified via Network ID, Base sub-station ID and system ID (NID, BSSID and SID).
Want something that makes it even easier to find free Wi-Fi? Using data from OpenSignal users we've built an app dedicated to getting connected to free Wi-Fi and crowdsourcing even more points: WifiMapper -get it here https://play.google.com/store/apps/details?id=com.opensignal.wifi
Do you have a question about this app?
UPDATED ON: Jan 30, 2016
SIZE Varies with device
INSTALLATIONS: 10,000,000 - 50,000,000
LATEST VERSION: Varies with device
ANDROID VERSIONVaries with device
prevent phone from sleeping
Allows an application to prevent the phone from going to sleep.
automatically start at boot
Allows an application to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the application to slow down overall performance of the phone by constantly running.
change Wi-Fi state
Allows an application to connect to and disconnect from Wi-Fi access points, and to make changes to configured Wi-Fi networks.
modify global system settings
Allows an application to modify the systemʼs settings data. Malicious applications can corrupt your systemʼs configuration.
read phone state and identity
Allows the application to access the phone features of the device. An application with this permission can determine the phone number and serial number of this phone, whether a call is active, the number that call is connected to, ect.
approximate (network-based) location
Access location sources such as the cellular network database to determine an approximate phone location, where available. Malicious applications can use this to determine approximately where you are.
precise (GPS) location
Access precise location sources such as the Global Positioning System on the phone, where available. Malicious applications can use this to determine where you are, and may consume additional battery power.
full Internet access
Allows an application to create network sockets.
view network state
Allows an application to view the state of all networks.
view Wi-Fi status
Allows an application to view the information about the state of Wi-Fi.
control vibration alert
Allows the application to control the vibration alert.
read SMS or MMS
Allows application to read SMS messages stored on your phone or SIM card. Malicious applications may read your confidential messages.