# OONI Probe vs GATE 19 Guard

The clearest difference is rating: GATE 19 Guard at 5.0 against OONI Probe's 4.5. GATE 19 Guard also leads on update cadence (every 10 days vs every 2 months). OONI Probe's advantage is ratings volume (91 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GATE 19 Guard holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: OONI Probe has 91 ratings behind it against 1, so its average is the more settled of the two.

OONI Probe ships an update every 2 months, GATE 19 Guard every 10 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | OONI Probe | GATE 19 Guard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (91 ratings)](https://appshunter.io/ios/app/ooni-probe/id1199566366/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gate-19-guard/id6761811823/reviews)** |
| Number of ratings | **91** | 1 |
| Positive reviews | 58.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 139 MB | 85 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [The Tor Project](https://appshunter.io/developer/1199566365) | [test126](https://appshunter.io/developer/1877062760) |

## 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


### GATE 19 Guard

[App page](https://appshunter.io/ios/app/gate-19-guard/id6761811823)

This app helps protect your digital life by checking for data leaks, scanning links for threats, and generating strong passwords. It also provides security tips and tracks your security events.

**Highlights:** Data leak search for email and passwords, URL scanner for phishing and malware, Strong password generator, Online security tips, Security event tracking

**In-app purchases:** none


## Frequently asked questions

### Is OONI Probe free?

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

### Is GATE 19 Guard free?

GATE 19 Guard is free to download, with no in-app purchases.

### Which has better reviews, OONI Probe or GATE 19 Guard?

GATE 19 Guard is rated higher. OONI Probe averages 4.5 out of 5 from 91 ratings, while GATE 19 Guard averages 5.0 from 1 ratings.

### Do OONI Probe or GATE 19 Guard have ads?

Neither OONI Probe nor GATE 19 Guard shows ads.

### Which is updated more often, OONI Probe or GATE 19 Guard?

OONI Probe ships an update every 2 months, and GATE 19 Guard every 10 days. Most recently, OONI Probe was updated on October 24, 2026 and GATE 19 Guard on October 24, 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.*