# Whois Data vs Device System Services

The clearest difference is in-app purchases: Whois Data at none against Device System Services's 1. Whois Data also leads on ads (none vs shown) and review sentiment (67% vs 52%). Device System Services's advantage is update cadence (every 4 months vs every 35 months) and ratings volume (394 vs 5). On price and device support there is nothing between them.

Both are free to download. Device System Services sells 1 one-off in-app purchase. Whois Data asks for nothing beyond the download.

Device System Services holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Device System Services has 394 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 67% of Whois Data's written reviews are positive against 52% of Device System Services's, so the app with the better star average is not the one people write more warmly about.

Whois Data ships an update every 35 months, Device System Services every 4 months. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Whois Data | Device System Services |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (5 ratings)](https://appshunter.io/ios/app/whois-data/id962521291/reviews) | **[4.5 (394 ratings)](https://appshunter.io/ios/app/device-system-services-tools/id1126227676/reviews)** |
| Number of ratings | 5 | **394** |
| Positive reviews | **66.7% of reviews** | 51.6% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 35 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 9 MB |
| Requires iOS | **8.2** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bradley Wong](https://appshunter.io/developer/747580915) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### Whois Data

[App page](https://appshunter.io/ios/app/whois-data/id962521291)

Instantly retrieve WHOIS data for any domain name, including newer gTLDs and Internationalized Domain Names. All past lookups are saved locally for easy access.

**Highlights:** WHOIS lookup for any domain, Supports new gTLDs, Supports International Domain Names (IDNs), Native language or punycode input, Local history of lookups

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Whois Data free?

Whois Data is free to download, with no in-app purchases.

### Is Device System Services free?

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

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

Device System Services is rated higher. Whois Data averages 4.2 out of 5 from 5 ratings, while Device System Services averages 4.5 from 394 ratings.

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

Device System Services shows ads; Whois Data does not.

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

Whois Data ships an update every 35 months, and Device System Services every 4 months. Most recently, Whois Data was updated on September 18, 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.*