# OONI Probe vs GridScout PA

The clearest difference is in-app purchases: OONI Probe at none against GridScout PA's 1. OONI Probe also leads on ads (none vs shown) and device support (3 vs 1). GridScout PA's advantage is update cadence (every 3 days vs every 2 months). On price there is nothing between them.

Both are free to download. GridScout PA sells 1 one-off in-app purchase. OONI Probe asks for nothing beyond the download.

OONI Probe ships an update every 2 months, GridScout PA every 3 days. The most recent releases landed on September 29, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | OONI Probe | GridScout PA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (88 ratings)](https://appshunter.io/ios/app/ooni-probe/id1199566366/reviews)** | — |
| Number of ratings | **88** | — |
| Positive reviews | 58.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 139 MB | 22 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [The Tor Project](https://appshunter.io/developer/1199566365) | [okan oguz](https://appshunter.io/developer/1876047316) |

## What reviewers say

### OONI Probe

[App page](https://appshunter.io/ios/app/ooni-probe/id1199566366)

This app helps you detect internet censorship and surveillance systems by examining website and app blocking. It also measures your network's speed and performance, providing data that can serve as evidence of interference. All collected data is published openly to promote transparency.

**Highlights:** Examine website and app blocking, Measure network speed and performance, Detect censorship and surveillance systems, Collect evidence of internet censorship, Publish open network measurement data, Free and open source software

**Features:** Vision Pro support

**In-app purchases:** none


### GridScout PA

[App page](https://appshunter.io/ios/app/gridscout-pa/id6791697686)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads - GridScout PA | $9.99 | one-time |


## Frequently asked questions

### Is OONI Probe free?

OONI Probe is free to download, with no in-app purchases.

### Is GridScout PA free?

GridScout PA is free to download, with in-app purchases available.

### Do OONI Probe or GridScout PA have ads?

GridScout PA shows ads; OONI Probe does not.

### Which is updated more often, OONI Probe or GridScout PA?

OONI Probe ships an update every 2 months, and GridScout PA every 3 days. Most recently, OONI Probe was updated on September 29, 2026 and GridScout PA on September 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*