---
title: "OONI Probe — App Overview"
url: https://marlvel.ai/apps/ooni-probe
category: Utilities
developer: The Tor Project
platforms: ios, android
rating: 4.5 (3.1K ratings)
pricing: free
report_level: overview
generated: 2026-04-21
last_verified: "2026-04-21T09:59:00.253Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** OONI Probe functions as a crowdsourced utility for documenting internet censorship, though users report stability issues and a need for updated test targets.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Utilities |
| Rating | 4.5 ★ (3.1K) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 6.0.1 |
| Latest Version (Android) | 6.0.1 |
| Developer | The Tor Project |

<!-- SECTION: Summary -->
## What is OONI Probe?

OONI Probe is a network diagnostic tool designed to identify internet censorship and surveillance by measuring the accessibility of websites and instant messaging apps. Developed by The Tor Project, the app enables users to contribute to a global dataset of network interference measurements. It is notable for its role in providing empirical evidence of internet blocking across more than 200 countries.

<!-- SECTION: Key Features -->
## Key Features

- **Website Blocking Tests**: Examines the accessibility of specific websites to identify potential censorship.
- **Instant Messaging App Tests**: Checks for the blocking of popular messaging platforms within the user's network.
- **Network Performance Measurement**: Evaluates network speed and performance metrics.
- **Censorship and Surveillance Detection**: Identifies systems within the network that may be responsible for surveillance or interference.

<!-- SECTION: Target Audience -->
## Who is it for?

Privacy-conscious users, researchers, and developers interested in monitoring network performance and internet freedom.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/ooni-probe/id1199566366?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=org.openobservatory.ooniprobe&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/ooni-probe)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/ooni-probe).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*