# OONI Probe vs XRate Pro

The clearest difference is in-app purchases: OONI Probe at none against XRate Pro's 3. OONI Probe also leads on iOS requirement (15.0 vs 17). On price, ads and device support there is nothing between them.

Both are free to download. XRate Pro sells 3 in-app purchases, starting at $2.99 per 7 days. OONI Probe asks for nothing beyond the download.

## The numbers

| Metric | OONI Probe | XRate Pro |
| --- | --- | --- |
| 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 | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 139 MB | 2 MB |
| Requires iOS | **15.0** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [The Tor Project](https://appshunter.io/developer/1199566365) | [贺 周](https://appshunter.io/developer/1815397078) |

## 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


### XRate Pro

[App page](https://appshunter.io/ios/app/xrate-pro/id6763215706)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| XRate Pro Monthly | $2.99 | per 7 days |
| XRate Pro Yearly | $14.99 | per year |
| XRate Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is OONI Probe free?

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

### Is XRate Pro free?

XRate Pro is free to download, with in-app purchases available.

### Do OONI Probe or XRate Pro have ads?

Neither OONI Probe nor XRate Pro shows ads.

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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.*