# Deep Whois vs NSLookup

The clearest difference is rating: Deep Whois at 4.5 against NSLookup's 3.0. Deep Whois also leads on review sentiment (85% vs 54%) and update cadence (every 4 months vs every 9 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Deep Whois sells 4 in-app purchases, starting at $1.99 per 7 days and NSLookup sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Deep Whois holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Deep Whois has 172 ratings behind it against 31, so its average is the more settled of the two. Written reviews point the same way: 85% of Deep Whois's written reviews are positive against 54% of NSLookup's.

Deep Whois ships an update every 4 months, NSLookup every 9 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Deep Whois | NSLookup |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (172 ratings)](https://appshunter.io/ios/app/deep-whois/id328895000/reviews)** | [3.0 (31 ratings)](https://appshunter.io/ios/app/nslookup/id423175511/reviews) |
| Number of ratings | **172** | 31 |
| Positive reviews | **85.4% of reviews** | 53.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 46 MB | 30 MB |
| Requires iOS | **13.4** | 13.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [Dayana Networks Ltd](https://appshunter.io/developer/403434357) |

## 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


### NSLookup

[App page](https://appshunter.io/ios/app/nslookup/id423175511)

This utility app retrieves detailed DNS information for any domain. It helps users find IP addresses, view name servers, and query specific DNS records like NS and CNAME. It can also force authoritative responses from main DNS servers.

**Highlights:** View domain DNS information, Find target IP address, See name server records, Query NS and CNAME records, Force authoritative responses

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NSLookup Pro | $1.99 | one-time |


## Frequently asked questions

### Is Deep Whois free?

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

### Is NSLookup free?

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

### Which has better reviews, Deep Whois or NSLookup?

Deep Whois is rated higher. Deep Whois averages 4.5 out of 5 from 172 ratings, while NSLookup averages 3.0 from 31 ratings.

### Do Deep Whois or NSLookup have ads?

Both Deep Whois and NSLookup show ads.

### Which is updated more often, Deep Whois or NSLookup?

Deep Whois ships an update every 4 months, and NSLookup every 9 months. Most recently, Deep Whois was updated on October 23, 2026 and NSLookup 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.*