# Deep Whois vs OONI Probe

The clearest difference is in-app purchases: OONI Probe at none against Deep Whois's 4. OONI Probe also leads on ads (none vs shown) and update cadence (every 2 months vs every 4 months). Deep Whois's advantage is review sentiment (85% vs 58%). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Deep Whois sells 4 in-app purchases, starting at $1.99 per 7 days. OONI Probe asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Deep Whois against 4.5 for OONI Probe. Both are backed by a comparable volume of ratings — 172 and 84 respectively. Written reviews are what separate them: 85% of Deep Whois's written reviews are positive against 58% of OONI Probe's.

Deep Whois ships an update every 4 months, OONI Probe every 2 months. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Deep Whois | OONI Probe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (172 ratings)](https://appshunter.io/ios/app/deep-whois/id328895000/reviews) | [4.5 (84 ratings)](https://appshunter.io/ios/app/ooni-probe/id1199566366/reviews) |
| Number of ratings | **172** | 84 |
| Positive reviews | **85.4% of reviews** | 58.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 138 MB |
| Requires iOS | **13.4** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [The Tor Project](https://appshunter.io/developer/1199566365) |

## What reviewers say

### Deep Whois

[App page](https://appshunter.io/ios/app/deep-whois/id328895000)

This app provides comprehensive WHOIS lookups for domains, IP addresses, and network ranges. It offers advanced features like historical data, change tracking, and notifications for domain expirations. Explore all domain zones and IP versions with seamless RDAP support.

**Highlights:** WHOIS lookup for domains, IPs, ASNs, and ENS, WHOIS history and change tracking, Domain expiration tracking with notifications, Supports all domain zones and IP versions (IPv4/IPv6), Seamless RDAP support, Automatic WHOIS server selection

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deep Whois Pro (1 Week) | $1.99 | per 7 days |
| Deep Whois Pro (1 Month) | $3.99 | per month |
| Deep Whois Pro (1 Year) | $29.99 | per year |
| Deep Whois Plus (Lifetime) | $0.99 | one-time |

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Simple and intuitive interface
- 🔒 Provides detailed domain/IP information
- 💡 Useful for troubleshooting network issues
- 👍 Convenient for on-the-go use

**What reviewers complain about**

- 🐛 Occasional bugs and crashes
- 🔍 Limited functionality compared to desktop tools
- 💰 Paid version required for full features
- 🔑 Privacy concerns with some user data

**Reported bugs**

- Incorrect location/ISP information for some IP addresses
- Compatibility issues with newer iOS versions
- Unreliable performance on older devices

**Requested features**

- Expand search capabilities (e.g., reverse IP lookup, domain history)
- Add support for more domain registrars and TLDs
- Implement dark mode and customization options
- Improve integration with other network/security tools


### 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 Deep Whois free?

Deep Whois is free to download, with in-app purchases available.

### Is OONI Probe free?

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

### Which has better reviews, Deep Whois or OONI Probe?

Deep Whois and OONI Probe are both rated 4.5 out of 5 on the App Store, from 172 and 84 ratings respectively.

### Do Deep Whois or OONI Probe have ads?

Deep Whois shows ads; OONI Probe does not.

### Which is updated more often, Deep Whois or OONI Probe?

Deep Whois ships an update every 4 months, and OONI Probe every 2 months. Most recently, Deep Whois was updated on September 23, 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.*