# Memory & Disk Scanner vs Device System Services

The clearest difference is rating: Device System Services at 4.5 against Memory & Disk Scanner's 3.5. Device System Services also leads on review sentiment (52% vs 42%). Memory & Disk Scanner's advantage is ads (none vs shown) and update cadence (every 2 days vs every 4 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Memory & Disk Scanner sells 1 one-off in-app purchase and Device System Services sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Device System Services holds the better App Store score, 4.5 against 3.5. Both are backed by a comparable volume of ratings — 309 and 394 respectively. Written reviews point the same way: 42% of Memory & Disk Scanner's written reviews are positive against 52% of Device System Services's.

Memory & Disk Scanner ships an update every 2 days, Device System Services every 4 months. The most recent releases landed on October 13, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Memory & Disk Scanner | Device System Services |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (309 ratings)](https://appshunter.io/ios/app/memory-and-disk-scanner-check-system-information/id923813218/reviews) | **[4.5 (394 ratings)](https://appshunter.io/ios/app/device-system-services-tools/id1126227676/reviews)** |
| Number of ratings | 309 | **394** |
| Positive reviews | 41.6% of reviews | **52.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 9 MB |
| Requires iOS | **7.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhut](https://appshunter.io/developer/849063753) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### Memory & Disk Scanner

[App page](https://appshunter.io/ios/app/memory-and-disk-scanner-check-system-information/id923813218)

Monitor your device's real-time RAM and disk usage. Track CPU, network, and other system information. Offers a pro version for an ad-free experience and full features.

**Highlights:** Real-time RAM usage monitoring, Real-time disk usage monitoring, CPU usage monitoring, Network information monitoring, Full features in Pro version

**Features:** Vision Pro support

**In-app purchases (1)**

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

**What reviewers like**

- 🚀 Fast and efficient
- 👍 Cleans up memory and disk space
- 💡 Helpful for older devices
- ⭐ Effective at improving performance

**What reviewers complain about**

- 🐛 Crashes and bugs
- 🔒 Unreliable restore functionality
- 💰 Requires paid upgrade for full functionality
- 🤔 Inaccurate device information

**Reported bugs**

- Crashes during scanning
- Fails to detect and clean junk files
- Incompatible with newer iPhone models

**Requested features**

- Automatic memory and disk cleaning
- Detailed usage analytics
- Support for latest iOS versions
- Restore previous paid purchases


### 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 Memory & Disk Scanner free?

Memory & Disk Scanner 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, Memory & Disk Scanner or Device System Services?

Device System Services is rated higher. Memory & Disk Scanner averages 3.5 out of 5 from 309 ratings, while Device System Services averages 4.5 from 394 ratings.

### Do Memory & Disk Scanner or Device System Services have ads?

Device System Services shows ads; Memory & Disk Scanner does not.

### Which is updated more often, Memory & Disk Scanner or Device System Services?

Memory & Disk Scanner ships an update every 2 days, and Device System Services every 4 months. Most recently, Memory & Disk Scanner was updated on October 13, 2026 and Device System Services on October 17, 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.*