# Zhen Shi vs Device Kit

The clearest difference is in-app purchases: Zhen Shi at none against Device Kit's 4. Zhen Shi also leads on update cadence (every 4 days vs every 10 days) and iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Device Kit sells 4 in-app purchases, starting at $3.99 per month. Zhen Shi asks for nothing beyond the download.

Zhen Shi ships an update every 4 days, Device Kit every 10 days. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Zhen Shi | Device Kit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (95 ratings)](https://appshunter.io/ios/app/device-kit-phone-temperature/id6761011882/reviews)** |
| Number of ratings | — | **95** |
| Positive reviews | — | 78.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 10 days |
| Monetization | — | Freemium |
| Size | 20 MB | 37 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Ningbo Longlizhen Electronics Co., Ltd](https://appshunter.io/developer/1752430170) | [Shuyang Fan Ziyang Software Development Studio (Individually Owned Business)](https://appshunter.io/developer/1879334973) |

## What reviewers say

### Zhen Shi

[App page](https://appshunter.io/ios/app/zhen-shi/id6504472453)

**Features:** macOS Compatibility

**In-app purchases:** none


### Device Kit

[App page](https://appshunter.io/ios/app/device-kit-phone-temperature/id6761011882)

Monitor your device's core health in real-time, including CPU temperature, usage, network speed, and battery status. Access a suite of practical tools and utilize dynamic island and floating widgets for at-a-glance information.

**Highlights:** Real-time CPU temperature and usage monitoring, Network speed and data usage tracking, Comprehensive battery status insights, Dynamic Island and floating widgets, Charging power detection and statistics, 18 practical system, network, and sensor tools, Home and lock screen widgets

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $3.99 | per month |
| Yearly subscription | $7.99 | per year |
| Lifetime Membership | $12.99 | one-time |
| Lifetime Membership | $14.99 | one-time |


## Frequently asked questions

### Is Zhen Shi free?

Zhen Shi is free to download, with no in-app purchases.

### Is Device Kit free?

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

### Do Zhen Shi or Device Kit have ads?

Neither Zhen Shi nor Device Kit shows ads.

### Which is updated more often, Zhen Shi or Device Kit?

Zhen Shi ships an update every 4 days, and Device Kit every 10 days. Most recently, Zhen Shi was updated on November 8, 2026 and Device Kit on November 10, 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.*