# Deep Whois vs Domain Check

The clearest difference is review sentiment: Deep Whois at 85% against Domain Check's 0%. Deep Whois also leads on rating (4.5 vs 1.0) and ratings volume (172 vs 1). Domain Check's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases 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 and Domain Check 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 1.0. That said, the two scores are not equally well evidenced: Deep Whois has 172 ratings behind it against 1, 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 0% of Domain Check's.

Deep Whois ships an update every 4 months, Domain Check every 14 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | Deep Whois | Domain Check |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (172 ratings)](https://appshunter.io/ios/app/deep-whois/id328895000/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/domain-check/id649317039/reviews) |
| Number of ratings | **172** | 1 |
| Positive reviews | **85.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 4 months** | Every 14 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 46 MB | 6 MB |
| Requires iOS | **13.4** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [Geekme](https://appshunter.io/developer/823506026) |

## 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


### Domain Check

[App page](https://appshunter.io/ios/app/domain-check/id649317039)

Instantly retrieve detailed WHOIS information for any website using real WHOIS servers. Check domain availability, view comprehensive details, and maintain a history of your queries. Supports all top-level domains.

**Highlights:** Real WHOIS server queries, Unlimited queries, All TLD support, Domain availability check, Detailed domain information, Query history

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertising | $0.99 | one-time |


## Frequently asked questions

### Is Deep Whois free?

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

### Is Domain Check free?

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

### Which has better reviews, Deep Whois or Domain Check?

Deep Whois is rated higher. Deep Whois averages 4.5 out of 5 from 172 ratings, while Domain Check averages 1.0 from 1 ratings.

### Do Deep Whois or Domain Check have ads?

Deep Whois shows ads; Domain Check does not.

### Which is updated more often, Deep Whois or Domain Check?

Deep Whois ships an update every 4 months, and Domain Check every 14 months. Most recently, Deep Whois was updated on October 23, 2026 and Domain Check on October 23, 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.*