OONI Probe
8.9 234
v6.2.1 by The Tor Project
Editor's Review
ooniprobe from Tor Project runs a series of tests to check for evidence of network censorship.About OONI Probe
OONI Probe (Package Name: org.openobservatory.ooniprobe) is developed by The Tor Project and the latest version of OONI Probe 6.2.1 was updated on September 30, 2026. OONI Probe is in the category of Tools. You can check all apps from the developer of OONI Probe and find 200 alternative apps to OONI Probe on Android. Currently this app is for free. This app can be downloaded on Android 7.0+ on APKFab or Google Play. All APK/XAPK files on APKFab.com are original and 100% safe with fast download.
Are websites and social media apps blocked? Is your network unusually slow? Run OONI Probe to find out!
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.
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.
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.
Collect evidence of internet censorship
You can check whether and how websites and instant messaging apps are blocked. The network measurement data you will collect may serve as evidence of internet censorship.
Detect systems responsible for censorship and surveillance
OONI Probe tests are also designed to uncover the presence of systems (middleboxes) that could be responsible for censorship and surveillance.
Measure the speed and performance of your network
You can measure the speed and performance of your network by running OONI's implementation of the Network Diagnostic Test (NDT). You can also measure video streaming performance with the Dynamic Adaptive Streaming over HTTP (DASH) test.
Open data
OONI publishes network measurement data because open data allows third parties to verify OONI findings, conduct independent studies, and answer other research questions. Openly publishing OONI data also helps increase transparency of internet censorship around the world. You can explore and download OONI data here: https://ooni.io/data/
Free software
All OONI Probe tests (including our NDT and DASH implementations), are based on free and open source software. You can find OONI software projects on GitHub: https://github.com/ooni. Curious to learn how OONI Probe tests work? Learn more: https://ooni.io/nettest/
To receive updates from the OONI-verse, follow us on Twitter: https://twitter.com/OpenObservatory
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.
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.
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.
Collect evidence of internet censorship
You can check whether and how websites and instant messaging apps are blocked. The network measurement data you will collect may serve as evidence of internet censorship.
Detect systems responsible for censorship and surveillance
OONI Probe tests are also designed to uncover the presence of systems (middleboxes) that could be responsible for censorship and surveillance.
Measure the speed and performance of your network
You can measure the speed and performance of your network by running OONI's implementation of the Network Diagnostic Test (NDT). You can also measure video streaming performance with the Dynamic Adaptive Streaming over HTTP (DASH) test.
Open data
OONI publishes network measurement data because open data allows third parties to verify OONI findings, conduct independent studies, and answer other research questions. Openly publishing OONI data also helps increase transparency of internet censorship around the world. You can explore and download OONI data here: https://ooni.io/data/
Free software
All OONI Probe tests (including our NDT and DASH implementations), are based on free and open source software. You can find OONI software projects on GitHub: https://github.com/ooni. Curious to learn how OONI Probe tests work? Learn more: https://ooni.io/nettest/
To receive updates from the OONI-verse, follow us on Twitter: https://twitter.com/OpenObservatory
Read More
OONI Probe Features
Previous Versions
More
Variant
Arch
Version
DPI
370
September 30, 2026
OONI Probe
6.2.1
(370)
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: d6294bc239ec8b6a89a052847525331c4c8a3a9a
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.tvdpi, config.vi, config.zh
Size: 68.53 MB
What's New:
* Measurement engine (`org.ooni:oonimkall*`) v3.30.0
* `org.ooni:passport*` 0.1.7
* Add support for `resolver_type`.
* Bug fixes and improvements
* `org.ooni:passport*` 0.1.7
* Add support for `resolver_type`.
* Bug fixes and improvements
armeabi-v7a
Android 7.0+
160-640dpi
370
September 30, 2026
OONI Probe
6.2.1
(370)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: d2019dbb3e15db82a22aeb47c0287eef2282e723
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxhdpi, config.zh
Size: 75.74 MB
What's New:
* Measurement engine (`org.ooni:oonimkall*`) v3.30.0
* `org.ooni:passport*` 0.1.7
* Add support for `resolver_type`.
* Bug fixes and improvements
* `org.ooni:passport*` 0.1.7
* Add support for `resolver_type`.
* Bug fixes and improvements
arm64-v8a
Android 7.0+
160-640dpi
Variant
Arch
Version
DPI
360
August 14, 2026
OONI Probe
6.2.0
(360)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 8d85467970946ca7ab247646ec625275136fa4b6
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxxhdpi, config.zh
Size: 75.64 MB
What's New:
* Measurement engine is OONI Probe CLI v3.30.0
* Added in-app language picker for Android
* Enhanced offline handling and retry mechanisms
* Bug fixes and improvements
* Added in-app language picker for Android
* Enhanced offline handling and retry mechanisms
* Bug fixes and improvements
arm64-v8a
Android 7.0+
160-640dpi
360
August 14, 2026
OONI Probe
6.2.0
(360)
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: bdd60c79639f3d3d558586fa7f254f21336f6d9f
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.tvdpi, config.vi, config.zh
Size: 68.46 MB
What's New:
* Measurement engine is OONI Probe CLI v3.30.0
* Added in-app language picker for Android
* Enhanced offline handling and retry mechanisms
* Bug fixes and improvements
* Added in-app language picker for Android
* Enhanced offline handling and retry mechanisms
* Bug fixes and improvements
armeabi-v7a
Android 7.0+
160-640dpi
Variant
Arch
Version
DPI
350
July 2, 2026
OONI Probe
6.1.1
(350)
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: f1b73481a4f1630eb66028f43a6ee534f5390ce9
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.armeabi_v7a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.tvdpi, config.vi, config.zh
Size: 63.51 MB
What's New:
* Measurement engine is OONI Probe CLI v3.29.0
* Add in-app language support for desktop
* Bug fixes and improvements
* Add in-app language support for desktop
* Bug fixes and improvements
armeabi-v7a
Android 7.0+
160-640dpi
350
July 2, 2026
OONI Probe
6.1.1
(350)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 12f6d0e4396c4be7ed86875e2b8e79117fcfc2d1
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxhdpi, config.zh
Size: 71.03 MB
What's New:
* Measurement engine is OONI Probe CLI v3.29.0
* Add in-app language support for desktop
* Bug fixes and improvements
* Add in-app language support for desktop
* Bug fixes and improvements
arm64-v8a
Android 7.0+
160-640dpi
350
July 5, 2026
OONI Probe
6.1.1
(350)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 1f85a93c0009dd07edf7d3eb89ebbfaccc07206e
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xhdpi, config.zh
Size: 71.03 MB
What's New:
* Measurement engine is OONI Probe CLI v3.29.0
* Add in-app language support for desktop
* Bug fixes and improvements
* Add in-app language support for desktop
* Bug fixes and improvements
arm64-v8a
Android 7.0+
160-640dpi
350
August 11, 2026
OONI Probe
6.1.1
(350)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 5ea92791d736a7f8658bd71da1dc32d0716633a2
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.es, config.fr, config.hi, config.it, config.ja, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxxhdpi, config.zh
Size: 71.03 MB
What's New:
* Measurement engine is OONI Probe CLI v3.29.0
* Add in-app language support for desktop
* Bug fixes and improvements
* Add in-app language support for desktop
* Bug fixes and improvements
arm64-v8a
Android 7.0+
160-640dpi
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 5f35e6490fe7234111d0fca5ecc0004c6251b854
Size: 64.97 MB
What's New:
* Measurement engine is OONI Probe CLI v3.29.0
* Add support for anonymous credentials
* Bug fixes and improvements
* Add support for anonymous credentials
* Bug fixes and improvements
More Information
Package Name:
Update Date:
2026-09-30
Latest Version:
6.2.1
Need Update:
Available on:
Requirements:
Android 7.0+
Report:
Safe to Download
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