Opensignal Internet Speed Test 4+

5G 4G & WiFi Signal Speed Test

Opensignal Inc.

    • 4.5 • 14.9K Ratings
    • Free

iPhone Screenshots


Opensignal is a fully-featured mobile connectivity and network signal speed test tool.

Speed test, including download, upload and latency - for 3G, 4G/LTE, 5G and WiFi
Find the best network provider in your area. Compare coverage on Sprint, T-Mobile, AT&T and Verizon.

Video streaming test - check streaming experience for Netflix, YouTube and others
Compare what you’re paying for to what you’re actually getting by measuring connection quality on an Apple map with a database of signal and speed test results
Completely free and no adverts. Our mission is to create an open-source map of connectivity so that everyone in the world can enjoy the best mobile connection available


- Test tab with speed test and video streaming quality to analyze mobile video performance with results for time spent buffering, loading and playback
- Signal dashboard and ping test - for testing latency response
- Connectivity map to show locations of 3G and 4G/LTE tests
- Network stats with average speeds for download, upload and latency and network strength on major providers
- Historical log of your WiFi and 3G, 4G/LTE and 5G speed tests to check connectivity over time

Opensignal Speed Tests

Opensignal speed tests measure your real experience of mobile connectivity and signal. The speed test runs a 10 sec download test, 10 sec upload test and ping test to determine the speed you will likely experience. The speed test runs on common internet CDN servers. The result is calculated with the middle range of samples.

Check if you're getting the network quality you're paying for from your mobile network or internet provider. Use our coverage maps to compare networks and data speed in your area. Opensignal works with WiFi mobile broadband internet.

Video Speed Tests

Slow video load time? Video buffering? More time waiting than watching? A good average network speed isn’t enough for a great video experience. Opensignal’s video test gives you the full picture of your network experience. Opensignal video tests show you exactly what to expect with HD and SD videos.

Watch a 15 sec video snippet to test and log load time, buffering, and playback issues in real-time.
Monitor how video quality changes with time and location. Review video test results in History to see if your network experience has changed over time.

Coverage Map

Opensignal’s coverage maps show 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 speeds ahead of a trip, find out if you will get a signal in remote areas, check your signal against others in the area to see if you’re getting the best service, arrange the best local SIM and check the signal strength when travelling.

Improving Network Connectivity

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 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.

Do Not Sell My Info:

What’s New

Version 5.72.0

Bug fixes and performance improvements

Ratings and Reviews

4.5 out of 5
14.9K Ratings

14.9K Ratings

MikeFCutler ,

The #1 tool for the Security & Fire alarm industry

OpenSignal is the best, most important cellular testing tool I have as a professional in the Security & Fire Alarm industry. This free, amazingly easy to use, comprehensive testing & tower locator tool insures that the cellular communicators that we install are using the best carrier available based on signal strength, data latency upload/download speed testing that I perform myself at every location I go to. For me and those in my industry, OpenSignal insures top performance when seconds means the difference in life or death. Having a tool in your hand that tests cellular performance from the exact location you are at, is a dream come true for those who’s job is to secure property, protect jobs, and save lives.
No matter where you are, you know whether you can use the cellular communicators internal antenna or if you will need an outdoor antenna because of the distance you are from a tower or the buildings size or the structures building material blocks the cellular signal. In those areas that a long-range directional antenna is required, OpenSignal shows me exactly where to point my antenna. As a 33 year veteran of the Security & Fire Alarm Industry. I recommend everyone that uses cellular communications to get this app, it’s a Life Saver figuratively and Literally.

<nickname-shnickname> ,

New version removed the most useful function!

[Updated, 8 June 2020]: Changed my rating to 3 stars now that the signal compass feature has been restored (as of app version 5.2.2). Would give it another star except that the upload part of the speed test feature consistently fails for me (starts, but fails with message “Error”). Of 24 speed tests, only 3 completed that part of the test.

Just updated the app (to version 5.0.3) only to discover that the most useful function has been removed: the cell tower signal direction indicator!!!

That feature has been used by many people over the years, like me, to determine in which direction to point the antenna of my cell signal booster in order to obtain the best connection.

It totally makes no sense at all why the developers would choose to remove that function, and also to not announce it in the version release notes.

Two thumbs down! This app is now mostly useless. The speedtest function hasn’t worked reliably or at all most of the time for over a year. And the cell signal mapping is mostly useless because of low participation outside of large metropolitan areas, and if you’re in such an area you’re likely to get a good signal anyway.

Developer Response ,

Thank you for your feedback. We had to take out the signal compass for a little while to fix a number of bugs but I'm glad to report that we have now added it back; all fixed, re-designed and ready for you to use. We hope you'll like the latest version of the app and find it more useful!


Great app but needs some tuning.

Been using this app for over a year now and it seems to really gives you the best average speed test rather than maximum speed. I have Ookla SpeedTest and I use it to compare the differences of its performance and Ookla (and other speed test app) does only give you what your cell signal/Wi-Fi maximum speed is and Open Signal gives you the real speed that you’re always averaging. This app would be perfect if the developer can make it for you to delete your old test records (you can but it comes back after resetting the app) and needs to add location to where you test your signal and Wi-Fi so you can keep track of where you had already test the signal. There seems to be a problem with the find cellular signal. I’m standing right next to my cellular sever (T-Mobile) and it’s pointing away from it?. Other then that this is a great speed test app. 3 stars for now.

App Privacy

The developer, Opensignal Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Identifiers
  • Usage Data
  • Diagnostics
  • Other Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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