OONI Probe
8.9 208
v5.3.0 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 5.3.0 was updated on November 26, 2025. 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
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 1f84276f26e69b6fb8a1bdf18d256477f879954c
Size: 67.54 MB
Variant
Arch
Version
DPI
240
October 14, 2025
OONI Probe
5.2.2
(240)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 76b671b7b7fd1199d137f0c3507d5713d72b5382
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.arm64_v8a, config.hi, config.mdpi
Size: 112.95 MB
What's New:
* Measurement engine updated to OONI Probe CLI v3.27.0
* Various minor bug fixes and enhancements
* Various minor bug fixes and enhancements
arm64-v8a
Android 7.0+
160-640dpi
240
November 26, 2025
OONI Probe
5.2.2
(240)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: ddd500a04c75a99b1b7bf527cdc0315ebee6d19f
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.es, config.fr, config.hi, config.it, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxxhdpi, config.zh
Size: 90.27 MB
What's New:
* Measurement engine updated to OONI Probe CLI v3.27.0
* Various minor bug fixes and enhancements
* Various minor bug fixes and enhancements
arm64-v8a
Android 7.0+
160-640dpi
Variant
Arch
Version
DPI
210
June 29, 2025
OONI Probe
5.1.0
(210)
Requires Android: Android 7.0+
Architecture: armeabi-v7a
Screen DPI: 160-640dpi
SHA1: 5b8286747dc520742ec5cf70d815bedef090f623
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.armeabi_v7a, config.mdpi, config.zh
Size: 103.71 MB
What's New:
* Measurement engine updated to OONI Probe CLI v3.26.0
* Filter results by date and network
* Mark multiple results as viewed
* Delete results selectively
* New contact screen, with the ability to include logs
* Improved translation of plurals
* Predictive back on Android
* Chosen websites for testing are kept from the previous run
* Various minor bug fixes and enhancements
* Filter results by date and network
* Mark multiple results as viewed
* Delete results selectively
* New contact screen, with the ability to include logs
* Improved translation of plurals
* Predictive back on Android
* Chosen websites for testing are kept from the previous run
* Various minor bug fixes and enhancements
armeabi-v7a
Android 7.0+
160-640dpi
210
June 29, 2025
OONI Probe
5.1.0
(210)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 2de727fcab1920d19d42fc43402798ae1b32c7db
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.arm64_v8a, config.fr, config.mdpi
Size: 109.79 MB
What's New:
* Measurement engine updated to OONI Probe CLI v3.26.0
* Filter results by date and network
* Mark multiple results as viewed
* Delete results selectively
* New contact screen, with the ability to include logs
* Improved translation of plurals
* Predictive back on Android
* Chosen websites for testing are kept from the previous run
* Various minor bug fixes and enhancements
* Filter results by date and network
* Mark multiple results as viewed
* Delete results selectively
* New contact screen, with the ability to include logs
* Improved translation of plurals
* Predictive back on Android
* Chosen websites for testing are kept from the previous run
* Various minor bug fixes and enhancements
arm64-v8a
Android 7.0+
160-640dpi
210
June 29, 2025
OONI Probe
5.1.0
(210)
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: bb9de3ab789a39e719eb817ce81d36358a042b01
Base APK: org.openobservatory.ooniprobe.apk
Split APKs: config.ar, config.arm64_v8a, config.de, config.es, config.fr, config.hi, config.it, config.my, config.pt, config.ru, config.th, config.tr, config.vi, config.xxxhdpi, config.zh
Size: 88.05 MB
What's New:
* Measurement engine updated to OONI Probe CLI v3.26.0
* Filter results by date and network
* Mark multiple results as viewed
* Delete results selectively
* New contact screen, with the ability to include logs
* Improved translation of plurals
* Predictive back on Android
* Chosen websites for testing are kept from the previous run
* Various minor bug fixes and enhancements
* Filter results by date and network
* Mark multiple results as viewed
* Delete results selectively
* New contact screen, with the ability to include logs
* Improved translation of plurals
* Predictive back on Android
* Chosen websites for testing are kept from the previous run
* Various minor bug fixes and enhancements
arm64-v8a
Android 7.0+
160-640dpi
Requires Android: Android 7.0+
Architecture: arm64-v8a
Screen DPI: 160-640dpi
SHA1: 7052875eaca96d27ef4f8e137e0eb0bf690cf3eb
Size: 87.55 MB
What's New:
* Measurement engine synced with OONI Probe CLI v3.25.0.
* Fix running OONI Run link tests with large amounts of URLs.
* Dark-mode splash screen on Android.
* Other bug fixes and improvements.
* Fix running OONI Run link tests with large amounts of URLs.
* Dark-mode splash screen on Android.
* Other bug fixes and improvements.
More Information
Package Name:
Update Date:
2025-11-26
Latest Version:
5.3.0
Need Update:
Available on:
Requirements:
Android 7.0+
Report:
Safe to Download
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