# TLS Inspector vs OONI Probe

The clearest difference is review sentiment: TLS Inspector at 83% against OONI Probe's 58%. TLS Inspector also leads on rating (4.8 vs 4.5) and ratings volume (256 vs 84). On price, update cadence, ads and in-app purchases there is nothing between them.

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

TLS Inspector holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 256 and 84 respectively. Written reviews point the same way: 83% of TLS Inspector's written reviews are positive against 58% of OONI Probe's.

TLS Inspector ships an update monthly, OONI Probe every 2 months. The most recent releases landed on August 5, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | TLS Inspector | OONI Probe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (256 ratings)](https://appshunter.io/ios/app/tls-inspector/id1100539810/reviews)** | [4.5 (84 ratings)](https://appshunter.io/ios/app/ooni-probe/id1199566366/reviews) |
| Number of ratings | **256** | 84 |
| Positive reviews | **83.0% of reviews** | 58.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 18 MB | 138 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ian Spence](https://appshunter.io/developer/572311760) | [The Tor Project](https://appshunter.io/developer/1199566365) |

## What reviewers say

### TLS Inspector

[App page](https://appshunter.io/ios/app/tls-inspector/id1100539810)

Inspect TLS certificates for any domain or IP address to understand trust and safety. Detect man-in-the-middle attacks by highlighting invalid certificates. Access detailed certificate properties and integrate with your browser.

**Highlights:** Input domain or IP for inspection, Inspect websites via browser extension, View entire issue chain and trust status, Detailed TLS certificate properties, Detect man-in-the-middle attacks, Share sheet integration with Safari

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- ✅ Essential security utility
- 🔧 Useful for cert renewals
- 📱 Inspects certs on mobile
- 💡 Innovative CA root updating
- 👍 Seamless share sheet integration

**What reviewers complain about**

- 🐛 Share extension not working
- ⚠️ Error messages for updates
- 📉 No longer works for some
- 🥶 App freezes
- 🚫 Unauthorized app claim

**Reported bugs**

- App crash issue fixed
- Share extension 'inspect website' never works
- Error checking for TLS bundle updates
- App freezes
- App locks up, non functional

**Requested features**

- Continue making app great and helpful
- Add dark mode option
- More advanced features


### 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


## Frequently asked questions

### Is TLS Inspector free?

TLS Inspector is free to download, with no in-app purchases.

### Is OONI Probe free?

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

### Which has better reviews, TLS Inspector or OONI Probe?

TLS Inspector is rated higher. TLS Inspector averages 4.8 out of 5 from 256 ratings, while OONI Probe averages 4.5 from 84 ratings.

### Do TLS Inspector or OONI Probe have ads?

Neither TLS Inspector nor OONI Probe shows ads.

### Which is updated more often, TLS Inspector or OONI Probe?

TLS Inspector ships an update monthly, and OONI Probe every 2 months. Most recently, TLS Inspector was updated on August 5, 2026 and OONI Probe on September 22, 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.*