OONI Probe 3.10

Open Observatory of Network Interference ❘ Freeware ❘
Android iOS

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OONI Probe: Your Gateway to Understanding Internet Censorship

Elena Angelini

07/29/2025

OONI Probe empowers users to investigate and report on internet censorship in their region with an easy-to-use app and robust community support.

Comprehensive Internet Censorship Detection with OONI Probe

OONI Probe, developed by the Open Observatory of Network Interference (OONI) under The Tor Project, is an essential tool for users keen on uncovering internet censorship and understanding network performance. Available on both Android and iOS platforms, this open-source application empowers individuals to investigate website blocking, messaging app censorship, and detect surveillance systems worldwide.

Robust Features for Transparency and Human Rights Advocacy

Detects network interference and censorship: OONI Probe assesses whether websites and messaging apps are blocked, providing crucial evidence for human rights advocacy.
Identifies censorship techniques: Tests are designed to detect middleboxes responsible for filtering content and surveillance activities.
Measures network performance: Utilizes Network Diagnostic Test (NDT) and DASH streaming tests to evaluate internet speed and streaming quality.

Open Data and Community-Driven Insights

The software publishes its findings openly, allowing third parties to verify data, conduct independent research, and foster greater transparency regarding global internet freedom. Users can browse comprehensive datasets at OONI Data Repository.

Open Source and Developer Support

All tests within OONI Probe stem from open-source projects available on GitHub, encouraging transparency and collaborative improvement. The platform continually updates to enhance user experience based on community feedback.

User Experience and Community Feedback

The app has garnered positive reviews for its simplicity in revealing complex network issues and its crucial role in human rights efforts. Some users note the addition of features like result grouping improves usability. Ongoing updates aim to streamline testing processes further.

Security, Privacy, and Accessibility

The application respects user privacy, collecting only non-identifiable data such as location usage patterns. Available in multiple languages, the tool is accessible to a global audience committed to free and open internet principles.

Overview

OONI Probe is a Freeware software in the category Security developed by Open Observatory of Network Interference.

The users of our client application UpdateStar have checked OONI Probe for updates 157 times during the last month.

The latest version of OONI Probe is 3.10, released on 07/28/2025. It was initially added to our database on 01/26/2023. The most prevalent version is 3.10, which is used by 80% of all installations.

OONI Probe runs on the following operating systems: Android/iOS.

OONI Probe has not been rated by our users yet.

Pros

User-friendly interface that makes it easy to understand and use for people of all technical abilities.
Helps detect internet censorship and network interference in real-time across various locations.
Provides an open-source platform, allowing for community contributions and transparency in the data collected.
Offers multilingual support, making it accessible to a global audience.
Utilizes mobile and desktop applications, increasing its accessibility across different devices.
Contributes to a larger understanding of internet freedom by sharing aggregated data with researchers and organizations.

Cons

Dependent on user participation for data collection, which may lead to limited information in less populated areas.
Results may vary due to different factors such as internet provider practices and user connection types.
Requires regular updates and maintenance, which could be a barrier for users who are not tech-savvy.
The reliance on community data can lead to inconsistent data quality and reporting standards across different regions.
Limited support for certain platforms may exclude users of those specific systems.

FAQ

What is OONI Probe?

OONI Probe is a free and open-source software designed to measure internet censorship and network interference.

How does OONI Probe work?

OONI Probe collects network measurements from around the world through various tests to detect censorship and surveillance.

Who can use OONI Probe?

Anyone can download and use OONI Probe to contribute to a better understanding of internet censorship globally.

Is OONI Probe legal to use?

Yes, OONI Probe is legal to use as it helps promote transparency and accountability with respect to internet censorship.

How can I contribute to OONI Probe's research?

You can run OONI Probe tests on your network and share the results with the OONI community to contribute to their research efforts.

Is OONI Probe available on mobile devices?

Yes, OONI Probe is available for both Android and iOS devices for easy measurement of censorship on mobile networks.

What types of tests does OONI Probe perform?

OONI Probe conducts various tests such as web connectivity, HTTP invalid request, DNS tampering, and more to detect censorship techniques.

Can I view and analyze the data collected by OONI Probe?

Yes, you can access the data collected by OONI Probe through their web interface or API for further analysis and research.

Is there a community around OONI Probe?

Yes, there is an active community of researchers, developers, and advocates who collaborate to advance internet freedom using OONI Probe data.

Can I trust the results produced by OONI Probe?

OONI Probe follows strict methodologies and uses cryptographic verification to ensure the accuracy and integrity of the measurement results.

Elena Angelini

I'm Elena, your go-to software reviewer at UpdateStar and tech enthusiast. Whether you're a user seeking the latest software titles or software news I've got you covered. When I'm not diving into the latest software, you can find me exploring nature trails, camping under the stars, or competing in online multiplayer games. My reviews are designed to be fun, engaging, and packed with all the details you need to make informed decisions.

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Latest Version
3.10

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