Opensignal - 5G, 4G Speed Test

4.6
449K reviews
10M+
Downloads
Content rating
Rated for 3+
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About this app

Opensignal is a free to use, advert free mobile connectivity and network signal speed test app.

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.
Updated on
Aug 27, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.6
426K reviews
Debbie and Dan Y
August 16, 2025
sometimes I'm in a small village in Alaska. While there seems to be several antennas around I couldn't find them. This app let me drive close enough to them- so I could help distinguish where the problem was. ( My phone or the signal). It's also great for a speed test and saving your results.
11 people found this review helpful
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Mike Wilhoit
August 4, 2025
The cell tower map and the "tower this way" arrow gives results that don't make any sense. According to my phone, I have -118 db signal and a terrible connection, which is consistent with the poor performance and slow data speeds. But this app shows me connected to a tower that is only 1500 feet away. How can my signal be so bad if the tower is that close? Also, the map shows the connected tower is to my south, but the "arrow" pointing to the tower points in the opposite direction--north.
2 people found this review helpful
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Vlad
August 30, 2025
Something to improve . I wanna find what way to go to get better signal. Map can't be zoomed in too much and it isn't jn satellite view nor has compass. Not much of use so far.
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What’s new

Bug fixes and stability improvements.