# Device Tester vs SYSMonitor

The clearest difference is ads: Device Tester at none against SYSMonitor's shown. Device Tester also leads on update cadence (weekly vs every 5 months) and rating (4.0 vs 3.6). SYSMonitor's advantage is iOS requirement (13.0 vs 16.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Device Tester sells 1 one-off in-app purchase and SYSMonitor sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Device Tester holds the better App Store score, 4.0 against 3.6. That said, the two scores are not equally well evidenced: Device Tester has 231 ratings behind it against 38, so its average is the more settled of the two. Written reviews point the same way: 55% of Device Tester's written reviews are positive against 40% of SYSMonitor's.

Device Tester ships an update weekly, SYSMonitor every 5 months. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Device Tester | SYSMonitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (231 ratings)](https://appshunter.io/ios/app/device-tester-system-checker/id873671623/reviews)** | [3.6 (38 ratings)](https://appshunter.io/ios/app/sysmonitor-system-status-wgt/id937687645/reviews) |
| Number of ratings | **231** | 38 |
| Positive reviews | **55.1% of reviews** | 39.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 15 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhut](https://appshunter.io/developer/849063753) | [泽辉 王](https://appshunter.io/developer/892030257) |

## What reviewers say

### Device Tester

[App page](https://appshunter.io/ios/app/device-tester-system-checker/id873671623)

Monitor your device's real-time system information, including RAM, disk, and CPU usage. Track network activity, battery status, and other system details to understand your device's performance.

**Highlights:** Real-time RAM usage, Disk usage monitoring, CPU usage tracking, Network activity, Battery status, System information

**Features:** Vision Pro support

**In-app purchases (1)**

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

**What reviewers like**

- 👍 User-friendly and intuitive design
- 🚀 Effective RAM memory cleaning and freeing
- 💰 Affordable one-time pro version purchase
- 📊 Detailed device analysis and performance monitoring
- ⏱️ Quick and simple to use

**What reviewers complain about**

- 🐛 Frequent app crashes on newer iOS versions
- 📢 Excessive and intrusive advertisements
- ❌ Limited functionality in free version
- 😞 Degraded performance after updates
- 🔄 Inconsistent results and reliability issues

**Reported bugs**

- App crashes during memory scan on newer iOS versions
- Crashes on iPhone 16 and iPhone 17 Pro models
- App fails to open or closes immediately
- Memory cleaning returns 0.0MB results
- Incompatibility with iOS 14 and later versions

**Requested features**

- Landscape view support for device rotation
- Deeper cleaning of junk files and cache
- More transparent proof of app actions and results
- Ability to keep pro version after updates
- Instruction guide on optimal app usage


### SYSMonitor

[App page](https://appshunter.io/ios/app/sysmonitor-system-status-wgt/id937687645)

Monitor your device's performance with real-time insights into CPU, memory, and storage usage. Track network speed, view detailed device information, and access key metrics directly from your Today widget. Understand your device's health and optimize its performance.

**Highlights:** CPU usage monitoring, Memory (RAM) status, Storage (ROM) visualization, Real-time network speed, Network details (IP, SSID, Ping), Basic device information

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanently Remove ads | $1.99 | one-time |


## Frequently asked questions

### Is Device Tester free?

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

### Is SYSMonitor free?

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

### Which has better reviews, Device Tester or SYSMonitor?

Device Tester is rated higher. Device Tester averages 4.0 out of 5 from 231 ratings, while SYSMonitor averages 3.6 from 38 ratings.

### Do Device Tester or SYSMonitor have ads?

SYSMonitor shows ads; Device Tester does not.

### Which is updated more often, Device Tester or SYSMonitor?

Device Tester ships an update weekly, and SYSMonitor every 5 months. Most recently, Device Tester was updated on September 21, 2026 and SYSMonitor on September 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.*