# Deep Whois vs NetBuddy MobileSpider

The clearest difference is price: Deep Whois at Free against NetBuddy MobileSpider's $1.99. Deep Whois also leads on iOS requirement (13.4 vs 18.0). NetBuddy MobileSpider's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support there is nothing between them.

Deep Whois is free to download; NetBuddy MobileSpider costs $1.99 up front. Deep Whois sells 4 in-app purchases, starting at $1.99 per 7 days. NetBuddy MobileSpider asks for nothing beyond the download.

Deep Whois ships an update every 4 months, NetBuddy MobileSpider every 6 weeks. The most recent releases landed on September 28, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Deep Whois | NetBuddy MobileSpider |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.5 (172 ratings)](https://appshunter.io/ios/app/deep-whois/id328895000/reviews)** | — |
| Number of ratings | **172** | — |
| Positive reviews | 85.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 46 MB | 1 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [Rick Bodnar](https://appshunter.io/developer/1712763175) |

## 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


### NetBuddy MobileSpider

[App page](https://appshunter.io/ios/app/netbuddy-mobilespider/id6745826424)

**Features:** macOS Compatibility, 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 NetBuddy MobileSpider free?

NetBuddy MobileSpider costs $1.99, with no in-app purchases.

### Do Deep Whois or NetBuddy MobileSpider have ads?

Deep Whois shows ads; NetBuddy MobileSpider does not.

### Which is updated more often, Deep Whois or NetBuddy MobileSpider?

Deep Whois ships an update every 4 months, and NetBuddy MobileSpider every 6 weeks. Most recently, Deep Whois was updated on September 28, 2026 and NetBuddy MobileSpider on October 21, 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.*