Published by The Tor Project on Dec 14, 2023

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Why should I report an Issue with OONI Probe?

  1. AppContacter will directly Email your issue/feedback to an apps's customer service once you report an issue and with lots of issues reported, companies will definitely listen to you.
  2. Pulling issues faced by users like you is a good way to draw attention of The Tor Project to your problem using the strength of crowds.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
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About OONI Probe

1. OONI Probe is developed by the Open Observatory of Network Interference (OONI), a free software project (under The Tor Project) that aims to uncover internet censorship around the world.

2. With this app, you will examine the blocking of websites and instant messaging apps, measure your network's speed and performance, and check whether systems that could be responsible for censorship and surveillance are in your network.

3. OONI publishes network measurement data because open data allows third parties to verify OONI findings, conduct independent studies, and answer other research questions.

4. OONI Probe tests are also designed to uncover the presence of systems (middleboxes) that could be responsible for censorship and surveillance.

5. You can measure the speed and performance of your network by running OONI's implementation of the Network Diagnostic Test (NDT).

6. All OONI Probe tests (including our NDT and DASH implementations), are based on free and open source software.

7. Openly publishing OONI data also helps increase transparency of internet censorship around the world.

8. The network measurement data you will collect may serve as evidence of internet censorship.

9. Since 2012, OONI’s global community has collected millions of network measurements from more than 200 countries, shedding light on multiple cases of network interference.

10. Run OONI Probe to find out!

11. You can also measure video streaming performance with the Dynamic Adaptive Streaming over HTTP (DASH) test.

OONI Probe Customer Insights

1. I've used it to compare different broadband providers, and have found it immeasurably useful as it doesn't just check speed, but also censorship levels and lots more.Wierd. The old version of this application worked perfectly fine and Flawless even under VPN connections.

2. In the end, I can very confidently say that each time the app said that al least 1 site was blocked and each time a different one when in reality none of them are, thus this app can't be used to check internet censorshipA great way to analyze a network, with lots of results.

3. Thank you!!!Great app... Thank you very much for this app... Looking forward to future improvement...Always crash when I want to see the test resultThis app popped up running on boot, challenging my memory of having installed it.

4. Proud to support open & free internet! 🐙Perfect! Free and Open Source Software, free of ads, free of cost... And a noble cause.

5. 4 times I have run the website block test and in all of them the results were different each time.

6. Very useful tool, I use it every time I connect to an unfamiliar network & abroad, to detect "fishy" interference.

7. Excellent app and support.App seems to be stuck on a screen with fish in a net with no buttons or text and no option to click anything.

8. I found at least one menu defined setting that was part of an agreement being violated: it was set to NOT run if PC was charging ... and I was.

9. Middlebox test appeared missing, but not so; it is now bundled with the Performance tests.

10. This feature was very important for me because I could test vpns for restriction and cesnors.

11. TRUST is a big subject, and you really can't be taking chances.An awesome idea but really subpar implementation.

Steps to Troubleshoot & Fix OONI Probe Issues

1. Fix OONI Probe Not Working/Crashes/Errors/Unresponsive & Black/White screen:


  1. Restart OONI Probe: Restarting the app will resolve most errors.
  2. Update the OONI Probe App. Here is how:
    1. On Android goto PlayStore » Search for "OONI Probe" » Open OONI Probe » click "Update".
    2. On iPhone, goto AppStore » Your profile » Available Updates » Check for OONI Probe » click "UPDATE".
  3. Clear OONI Probe app cache: Clearing cached data will force your app to retrieve the latest data directly from OONI Probe servers.
    1. On Android, goto Settings » Apps » Select "OONI Probe" » click Storage » click "Clear Cache".
  4. Check OONI Probe app permissions. If any of these permissions required to use your device's features are disenabled, OONI Probe might not work.
  5. Uninstall and reinstall OONI Probe. If nothing else has worked, completely uninstall OONI Probe then reinstall.
  6. Restart your device. Last, restarting your device can often clear most problems causing OONI Probe not working


2. Fix OONI Probe Server issues & Internet Connection


  1. Check network connection: An unstable Internet will make OONI Probe be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
  2. Disable VPN: VPN can cause connection errors and lead to OONI Probe not working. Make sure all VPNs are off
  3. Enable background data: When Background data is turned off, OONI Probe may not be able to connect to the Internet when running in the background.

Reported Issues