# Mocha iSys vs Device System Services

The clearest difference is in-app purchases: Mocha iSys at none against Device System Services's 1. Mocha iSys also leads on ads (none vs shown) and review sentiment (79% vs 52%). Device System Services's advantage is update cadence (every 4 months vs every 25 months) and ratings volume (394 vs 4). 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. Mocha iSys asks for nothing beyond the download.

Mocha iSys holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Device System Services has 394 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 79% of Mocha iSys's written reviews are positive against 52% of Device System Services's.

Mocha iSys ships an update every 25 months, Device System Services every 4 months. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Mocha iSys | Device System Services |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/mocha-isys/id326673288/reviews)** | [4.5 (394 ratings)](https://appshunter.io/ios/app/device-system-services-tools/id1126227676/reviews) |
| Number of ratings | 4 | **394** |
| Positive reviews | **78.9% of reviews** | 52.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | **Every 4 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 9 MB |
| Requires iOS | **10.1** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MochaSoft](https://appshunter.io/developer/284741182) | [Albert Parti](https://appshunter.io/developer/534966701) |

## What reviewers say

### Mocha iSys

[App page](https://appshunter.io/ios/app/mocha-isys/id326673288)

Access detailed information about your iPhone's software and hardware, including network, memory, battery, and storage usage. It also includes a utility to ping other devices.

**Highlights:** Display memory usage, Ping utility, Battery level and state, Storage usage, IP address display, Email data

**Features:** Vision Pro support

**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 Mocha iSys free?

Mocha iSys 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, Mocha iSys or Device System Services?

Mocha iSys is rated higher. Mocha iSys averages 4.8 out of 5 from 4 ratings, while Device System Services averages 4.5 from 394 ratings.

### Do Mocha iSys or Device System Services have ads?

Device System Services shows ads; Mocha iSys does not.

### Which is updated more often, Mocha iSys or Device System Services?

Mocha iSys ships an update every 25 months, and Device System Services every 4 months. Most recently, Mocha iSys was updated on October 15, 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.*