# Device Tester vs CPU Detector

The clearest difference is rating: CPU Detector at 4.6 against Device Tester's 4.0. CPU Detector also leads on review sentiment (76% vs 54%) and iOS requirement (11.0 vs 16.0). Device Tester's advantage is ads (none vs shown) and update cadence (weekly vs every 2 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

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

CPU Detector holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 245 and 427 respectively. Written reviews point the same way: 54% of Device Tester's written reviews are positive against 76% of CPU Detector's.

Device Tester ships an update weekly, CPU Detector every 2 months. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Device Tester | CPU Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (245 ratings)](https://appshunter.io/ios/app/device-tester-system-checker/id873671623/reviews) | **[4.6 (427 ratings)](https://appshunter.io/ios/app/cpu-detector-hardware-info/id1357917957/reviews)** |
| Number of ratings | 245 | **427** |
| Positive reviews | 54.4% of reviews | **76.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 8 MB | 97 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhut](https://appshunter.io/developer/849063753) | [楠 夏](https://appshunter.io/developer/832223369) |

## 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


### CPU Detector

[App page](https://appshunter.io/ios/app/cpu-detector-hardware-info/id1357917957)

Access detailed hardware information on your iPhone or iPad without jailbreaking. Monitor CPU usage, memory, battery health, sensor data, and network details in real-time. Ideal for tech enthusiasts and developers seeking in-depth device insights.

**Highlights:** Real-time CPU usage and frequency, Memory usage monitoring, Battery health and voltage check, Device model and storage details, Operating system and screen information, Network information and speed

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Permanently Remove Ads | $0.99 | one-time |

**What reviewers like**

- 👍 Excellent application and services
- 👍 Accurate and easy to understand
- 👍 Nice and clean apps
- 👍 Good work developers
- 👍 Shows phone stats

**What reviewers complain about**

- 🐛 Takes too much time to load
- 🐛 Not working on iPad
- 🐛 App doesn't open
- 🐛 Ads bug usability
- 🐛 Incompatible with some iPads

**Reported bugs**

- Takes too much time to load
- Not working on iPad pro
- App not opening, stuck on start
- Not working on iPad mini 6, only stuck on splash screen
- iPad mini six無法使用

**Requested features**

- Change language
- More actionable information


## Frequently asked questions

### Is Device Tester free?

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

### Is CPU Detector free?

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

### Which has better reviews, Device Tester or CPU Detector?

CPU Detector is rated higher. Device Tester averages 4.0 out of 5 from 245 ratings, while CPU Detector averages 4.6 from 427 ratings.

### Do Device Tester or CPU Detector have ads?

CPU Detector shows ads; Device Tester does not.

### Which is updated more often, Device Tester or CPU Detector?

Device Tester ships an update weekly, and CPU Detector every 2 months. Most recently, Device Tester was updated on October 17, 2026 and CPU Detector on October 16, 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.*