# Device Tester vs iSurpass Wifi Tool

The clearest difference is in-app purchases: iSurpass Wifi Tool at none against Device Tester's 1. iSurpass Wifi Tool also leads on iOS requirement (12.0 vs 16.0). Device Tester's advantage is update cadence (weekly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Device Tester sells 1 one-off in-app purchase. iSurpass Wifi Tool asks for nothing beyond the download.

Device Tester ships an update weekly, iSurpass Wifi Tool every 3 months. The most recent releases landed on October 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Device Tester | iSurpass Wifi Tool |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (260 ratings)](https://appshunter.io/ios/app/device-tester-system-checker/id873671623/reviews)** | — |
| Number of ratings | **260** | — |
| Positive reviews | 54.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 8 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Phan Nhut](https://appshunter.io/developer/849063753) | [深圳市经纬纵横科技有限公司](https://appshunter.io/developer/962651510) |

## 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


### iSurpass Wifi Tool

[App page](https://appshunter.io/ios/app/isurpass-wifi-tool/id6444927841)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Device Tester free?

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

### Is iSurpass Wifi Tool free?

iSurpass Wifi Tool is free to download, with no in-app purchases.

### Do Device Tester or iSurpass Wifi Tool have ads?

Neither Device Tester nor iSurpass Wifi Tool shows ads.

### Which is updated more often, Device Tester or iSurpass Wifi Tool?

Device Tester ships an update weekly, and iSurpass Wifi Tool every 3 months. Most recently, Device Tester was updated on October 26, 2026 and iSurpass Wifi Tool on October 12, 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.*