# Device Kit vs Larktun

The clearest difference is iOS requirement: Larktun at 15.0 against Device Kit's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Device Kit sells 4 in-app purchases, starting at $3.99 per month and Larktun sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

Device Kit ships an update every 10 days, Larktun every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Device Kit | Larktun |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (89 ratings)](https://appshunter.io/ios/app/device-kit-phone-temperature/id6761011882/reviews)** | — |
| Number of ratings | **89** | — |
| Positive reviews | 77.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | Freemium | — |
| Size | 36 MB | 40 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Shuyang Fan Ziyang Software Development Studio (Individually Owned Business)](https://appshunter.io/developer/1879334973) | [宁波弦域网络科技有限公司](https://appshunter.io/developer/1896375200) |

## What reviewers say

### Device Kit

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

Monitor your device's hardware performance in real-time with detailed CPU, memory, and battery usage. Access a suite of practical tools including weather, network diagnostics, and sensors. Visualize historical data with customizable charts and home screen widgets.

**Highlights:** Real-time CPU, memory, and battery monitoring, Visual data charts for performance trends, Picture-in-Picture mode for continuous monitoring, Customizable home screen widgets, Pro Toolbox with system, environment, and network tools, Sensor data including compass and barometer

**Features:** macOS Compatibility, Vision Pro 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 |


### Larktun

[App page](https://appshunter.io/ios/app/larktun/id6767086284)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Larktun Annual Subscription | $19.99 | per year |


## Frequently asked questions

### Is Device Kit free?

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

### Is Larktun free?

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

### Do Device Kit or Larktun have ads?

Neither Device Kit nor Larktun shows ads.

### Which is updated more often, Device Kit or Larktun?

Device Kit ships an update every 10 days, and Larktun every 2 weeks. Most recently, Device Kit was updated on October 25, 2026 and Larktun on October 24, 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.*