# Device System Services vs My Device ID by AppsFlyer

The clearest difference is rating: Device System Services at 4.5 against My Device ID by AppsFlyer's 3.8. Device System Services also leads on ratings volume (394 vs 41). My Device ID by AppsFlyer's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Device System Services sells 1 one-off in-app purchase. My Device ID by AppsFlyer asks for nothing beyond the download.

Device System Services holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Device System Services has 394 ratings behind it against 41, so its average is the more settled of the two. Written reviews complicate that: 52% of Device System Services's written reviews are positive against 63% of My Device ID by AppsFlyer's, so the app with the better star average is not the one people write more warmly about.

Device System Services ships an update every 4 months, My Device ID by AppsFlyer every 10 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Device System Services | My Device ID by AppsFlyer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (394 ratings)](https://appshunter.io/ios/app/device-system-services-tools/id1126227676/reviews)** | [3.8 (41 ratings)](https://appshunter.io/ios/app/my-device-id-by-appsflyer/id1192323960/reviews) |
| Number of ratings | **394** | 41 |
| Positive reviews | 52.3% of reviews | **62.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 10 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Albert Parti](https://appshunter.io/developer/534966701) | [AppsFlyer](https://appshunter.io/developer/1192323959) |

## What reviewers say

### 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


### My Device ID by AppsFlyer

[App page](https://appshunter.io/ios/app/my-device-id-by-appsflyer/id1192323960)

Easily view and share your device identifiers, including IDFA and IDFV. This tool allows you to quickly whitelist your device as a test device within your AppsFlyer account, crucial for SDK integration testing.

**Highlights:** View Device ID (IDFA, IDFV), Share Device ID, Whitelist test device for AppsFlyer, Directly add device to AppsFlyer account, Facilitates SDK integration testing

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

**In-app purchases:** none


## Frequently asked questions

### Is Device System Services free?

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

### Is My Device ID by AppsFlyer free?

My Device ID by AppsFlyer is free to download, with no in-app purchases.

### Which has better reviews, Device System Services or My Device ID by AppsFlyer?

Device System Services is rated higher. Device System Services averages 4.5 out of 5 from 394 ratings, while My Device ID by AppsFlyer averages 3.8 from 41 ratings.

### Do Device System Services or My Device ID by AppsFlyer have ads?

Device System Services shows ads; My Device ID by AppsFlyer does not.

### Which is updated more often, Device System Services or My Device ID by AppsFlyer?

Device System Services ships an update every 4 months, and My Device ID by AppsFlyer every 10 days. Most recently, Device System Services was updated on October 21, 2026 and My Device ID by AppsFlyer 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.*