Get Signal Coverage Information Before Puchasing a SIM

OpenSignal app is a powerful and free network signal & wifi tool. It helps to run a speed test to check the speed of your wifi or mobile networks. With free wifi maps and cell tower maps, you can see where to go to improve your connection and  Using coverage maps, you can compare networks & data speed in your area.

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Features of OneSignal :

✓ Cell tower direction - follow our signal compass to stronger signal
✓ Download, upload and latency tests - for 2G, 3G, LTE and wifi
✓ Database of your speed test results so you can view test history - stored in app, so see results offline
✓ Compare coverage and connection quality on a google map
✓ History of your mobile connection - see stats on your connection to 4G and 3G and your data usage
✓ Find fast wifi with our interactive wifi map
✓ Free and no ads

Easy, Fast Speedtest :

• Test download speed, upload speed and ping performance for wifi & mobile
• Units in mbps and ms
• History of results saved to a database - speed test history on a map
• Speedometer style interface
• Save to sd card as a CSV
• Works for mobile and cable broadband (ADSL)

Signal dashboard :

• Shows direction of your connected cell tower - walking towards it, or out of the way of obstructions, can improve cellular connection
• Ping test for quick speed check
• Signal strength in dB
• (Settings) Get signal alert when you have no data or can't make phone calls

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What Opensignal is not :

• OpenSignal is not a speed booster that will magically give you high speed data.
• But using the signal compass to get a stronger connection, or setting a signal alert can help you get faster data.
• You can also use the coverage maps to decide which network is best for you

Cell and Wifi Maps

• Where we have data, see the cell towers on *your* network - including, 3, EE, O2, Vodafone + more
• Wifi hotspots map and list - find free wifi nearby
• Unique network tools: signal compass, signal strength in dBm
• Uses Google Maps
• By using the app you help crowdsource data - automatically adding networks and wifis

View history and stats

• View data usage on wifi and mobile
• How long have you had access to 4G (LTE), 3G or 2G, or spent in signal notspots? See your stats for network availability
• Save to SD Card as a CSV - see your history of LTE, 3G measurements and more

Compare networks with their coverage map

• Interactive google maps covering mobile networks worldwide
• Compare performance on 3, EE, O2, Vodafone and many more internationally (like T Mobile, Reliance Jio, Optus)
• Coverage checker for if you're moving home or going abroad, see if you can make calls or get fast data
• See average speeds for download, upload and latency and network strength
• 100% independent, our data is based on real measurements from app users

Permissions Needed :

LOCATION -  To show you nearby wifi and antennas.
PHONE SETTINGS - Allows network reset on some Android OSs
SMS -  To count the number of SMS sent to track your usage, SMS are never read.

Advanced Notes :

On CDMA networks you will see fewer towers than on GSM networks such as 3 UK, EE, O2 & Vodafone are all GSM.