# Device Kit vs SLS Echon

The clearest difference is in-app purchases: SLS Echon at none against Device Kit's 4. SLS Echon also leads on update cadence (daily vs every 10 days). Device Kit's advantage is ratings volume (95 vs 1). On price, rating, 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. SLS Echon asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Device Kit against 5.0 for SLS Echon. That said, the two scores are not equally well evidenced: Device Kit has 95 ratings behind it against 1, so its average is the more settled of the two.

Device Kit ships an update every 10 days, SLS Echon daily. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Device Kit | SLS Echon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (95 ratings)](https://appshunter.io/ios/app/device-kit-phone-temperature/id6761011882/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sls-echon/id6782618500/reviews)** |
| Number of ratings | **95** | 1 |
| Positive reviews | 78.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | **Daily** |
| Monetization | Freemium | **Free** |
| Size | 37 MB | 11 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shuyang Fan Ziyang Software Development Studio (Individually Owned Business)](https://appshunter.io/developer/1879334973) | [XINGYU LIANG](https://appshunter.io/developer/6782618502) |

## What reviewers say

### 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 |


### SLS Echon

[App page](https://appshunter.io/ios/app/sls-echon/id6782618500)

Easily buy tickets and schedule appointments for Echon Studio. Manage your visits and plan your experience with this convenient utility.

**Highlights:** Purchase tickets, Book appointments, Visit Echon Studio, Manage visits

**Features:** macOS Compatibility, Apple Wallet, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Device Kit free?

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

### Is SLS Echon free?

SLS Echon is free to download, with no in-app purchases.

### Which has better reviews, Device Kit or SLS Echon?

SLS Echon is rated higher. Device Kit averages 4.9 out of 5 from 95 ratings, while SLS Echon averages 5.0 from 1 ratings.

### Do Device Kit or SLS Echon have ads?

Neither Device Kit nor SLS Echon shows ads.

### Which is updated more often, Device Kit or SLS Echon?

Device Kit ships an update every 10 days, and SLS Echon daily. Most recently, Device Kit was updated on November 10, 2026 and SLS Echon on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*