# Deep Whois vs WhoFi Diagnostic Tool

The clearest difference is rating: WhoFi Diagnostic Tool at 5.0 against Deep Whois's 4.5. WhoFi Diagnostic Tool also leads on in-app purchases (none vs 4) and ads (none vs shown). Deep Whois's advantage is ratings volume (172 vs 2). On price 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. WhoFi Diagnostic Tool asks for nothing beyond the download.

WhoFi Diagnostic Tool holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Deep Whois has 172 ratings behind it against 2, so its average is the more settled of the two.

Deep Whois ships an update every 4 months, WhoFi Diagnostic Tool weekly. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Deep Whois | WhoFi Diagnostic Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (172 ratings)](https://appshunter.io/ios/app/deep-whois/id328895000/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/whofi-diagnostic-tool/id1590555636/reviews)** |
| Number of ratings | **172** | 2 |
| Positive reviews | 85.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 16 MB |
| Requires iOS | 13.4 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [IO3O LLC](https://appshunter.io/developer/770969764) |

## 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


### WhoFi Diagnostic Tool

[App page](https://appshunter.io/ios/app/whofi-diagnostic-tool/id1590555636)

This utility app analyzes your network to determine compatibility with a WiFi analytics service. It helps businesses understand visitor behavior in public spaces like libraries and museums by providing previously unseen insights.

**Highlights:** Network analysis, Visitor behavior insights, Compatibility check, Online analytics framework

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Deep Whois free?

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

### Is WhoFi Diagnostic Tool free?

WhoFi Diagnostic Tool is free to download, with no in-app purchases.

### Which has better reviews, Deep Whois or WhoFi Diagnostic Tool?

WhoFi Diagnostic Tool is rated higher. Deep Whois averages 4.5 out of 5 from 172 ratings, while WhoFi Diagnostic Tool averages 5.0 from 2 ratings.

### Do Deep Whois or WhoFi Diagnostic Tool have ads?

Deep Whois shows ads; WhoFi Diagnostic Tool does not.

### Which is updated more often, Deep Whois or WhoFi Diagnostic Tool?

Deep Whois ships an update every 4 months, and WhoFi Diagnostic Tool weekly. Most recently, Deep Whois was updated on October 23, 2026 and WhoFi Diagnostic Tool on October 15, 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.*