# Deep Whois vs Device System Services

Deep Whois and Device System Services both sit at 4.5 stars, but that hides the real split: 85% of Deep Whois's written reviews are positive against 52% of Device System Services's. Deep Whois also leads on iOS requirement (13.4 vs 16.6). On price, rating, ratings volume and update cadence 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 Device System Services sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Deep Whois against 4.5 for Device System Services. Both are backed by a comparable volume of ratings — 172 and 394 respectively. Written reviews are what separate them: 85% of Deep Whois's written reviews are positive against 52% of Device System Services's.

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Deep Whois | Device System Services |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (172 ratings)](https://appshunter.io/ios/app/deep-whois/id328895000/reviews) | [4.5 (394 ratings)](https://appshunter.io/ios/app/device-system-services-tools/id1126227676/reviews) |
| Number of ratings | 172 | **394** |
| Positive reviews | **85.4% of reviews** | 51.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 46 MB | 9 MB |
| Requires iOS | **13.4** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Ahafonau](https://appshunter.io/developer/319585607) | [Albert Parti](https://appshunter.io/developer/534966701) |

## 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


### Device System Services

[App page](https://appshunter.io/ios/app/device-system-services-tools/id1126227676)

Monitor your device's hardware, network, memory, and storage with detailed insights and performance tracking. Includes diagnostic tools for network analysis and storage management. Offers widgets for real-time system information.

**Highlights:** Hardware specifications, Network status and diagnostics, Memory usage monitoring, Ping, LAN Scan, Port Scan tools, Storage management, System information widgets

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads System Service | $1.99 | one-time |

**What reviewers like**

- 👍 Clean and easy-to-use interface
- 🚀 Fast and responsive performance
- 📊 Comprehensive system information display
- 🌐 Useful network information details
- ⏱️ Shows device uptime information

**What reviewers complain about**

- 📺 Excessive full-screen video advertisements
- 🔊 Intrusive ads with sound that startle users
- ⚠️ Misleading security/storage warning popups
- 🎮 Irrelevant ads (e.g., game ads on iOS)
- 💰 Ads present even in paid version

**Reported bugs**

- App crashes on startup/launch
- Crashes when network module acquires external IP
- Requires airplane mode or disabled connectivity to function
- Incorrect device specifications (resolution, model variants)
- Static pie charts instead of dynamic system statistics

**Requested features**

- Option to delete accidentally copied items
- System reset functionality to restore original settings
- Camera information display
- External USB disk space usage tracking
- Memory cleaning/optimization features


## Frequently asked questions

### Is Deep Whois free?

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

### Is Device System Services free?

Device System Services is free to download, with in-app purchases available.

### Which has better reviews, Deep Whois or Device System Services?

Deep Whois and Device System Services are both rated 4.5 out of 5 on the App Store, from 172 and 394 ratings respectively.

### Do Deep Whois or Device System Services have ads?

Both Deep Whois and Device System Services show ads.

### Which is updated more often, Deep Whois or Device System Services?

Deep Whois ships an update every 4 months, and Device System Services every 4 months. Most recently, Deep Whois was updated on September 23, 2026 and Device System Services on September 19, 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.*