OONI Probe is made and published by The Tor Project. AppBrain is an independent app data site and isn't affiliated with The Tor Project. The app name, icon, screenshots and description belong to The Tor Project and are shown as published on Google Play.
AppBrain's verdict
EstablishedWell rated- Rating on Google Play
- 4.42
- 3,155 ratings
- Installs
- 590 thousand
- Last updated
- September 22, 2026
- Ads
- No ads
- Size
- 74.0 MB
OONI Probe has 590 thousand installs. Users rate it well: 4.4 stars from 3,155 ratings.
User feedback
Ratings and reviews on Google PlayComments on OONI Probe for Android
Google Play Rating history and histogram
Store listing
By The Tor Project, from Google Play“Measure Internet Censorship, Speed & Performance”
Description by The Tor Project Written by the developer, not by AppBrain. Click to read.
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
Safety and technology
Found in the app by AppBrain- Ads
- No ads
- Price
- Free
- Libraries
- 15
- App size
- 74.0 MB
- Content rating
- Everyone
Technologies used by OONI Probe
Releases
Updates seen on Google Play- Version
- 6.2.1
- Launched
- February 2017
Alternatives
Similar apps and more from The Tor Project
Installs
Tracked by AppBrain- Last 30 days
- 2.7 thousand
- Per day
- 92
- 30-day average
- Play install range
- 500+ thousand
- Launched
- February 2017
Installs over time
OONI Probe has been installed 590 thousand times. Over the past 30 days, it averaged 92 installs per day.
Rankings
Google Play top chartsGoogle Play Rankings for OONI Probe
About the app and developer
About OONI Probe
OONI Probe is a tools app developed by The Tor Project.
How many times has OONI Probe been installed?
OONI Probe has been installed 590 thousand times. In the last 30 days, the app was installed 2.7 thousand times.
What is the rating of OONI Probe?
OONI Probe is rated 4.42 out of 5 stars, based on 3.2 thousand ratings.
Is OONI Probe free?
OONI Probe is free. The app size is 74.04 MB. The latest version available is 6.2.1. The last update was on September 22, 2026.
What are the requirements for OONI Probe?
The app has a content rating of Everyone. The app has been available on Google Play since February 2017.
App Performance Report
Get a detailed PDF report for OONI Probe with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more
Get PDF Report — $29Developer information for The Tor Project
Frequently asked questions about OONI Probe
Is OONI Probe free?
Yes. OONI Probe is free on Google Play.
Is OONI Probe still available?
Yes. OONI Probe is on Google Play, and the last update we saw was on September 22, 2026.
Does OONI Probe contain ads?
No. Google Play does not list OONI Probe as containing ads.
How large is OONI Probe?
OONI Probe is 74.04 MB.
Is OONI Probe suitable for children?
Google Play rates the content of OONI Probe as suitable for everyone.
How many times has OONI Probe been installed?
Google Play lists 500,000+ installs for OONI Probe.
How do people rate OONI Probe?
OONI Probe scores 4.42 out of 5 stars, from 3,155 ratings on Google Play.
Who made OONI Probe?
OONI Probe was developed by The Tor Project. It is listed in the tools category on Google Play.
What are the best alternatives to OONI Probe?
People looking at OONI Probe also look at these tools apps: Luma, Snowflake Volunteer, Psiphon Tunnel Plus, SafeVisit Anti censorship DPI, hide.me VPN: The Privacy Guard.