# Sleemon Smart vs 工程师APP

The clearest difference is update cadence: 工程师APP at monthly against Sleemon Smart's every 28 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sleemon Smart ships an update every 28 months, 工程师APP monthly. The most recent releases landed on May 16, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Sleemon Smart | 工程师APP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Monthly** |
| Size | 183 MB | 66 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Somnic Technology Co., Ltd.](https://appshunter.io/developer/1089153259) | [观成 余](https://appshunter.io/developer/1073429239) |

## What reviewers say

### Sleemon Smart

[App page](https://appshunter.io/ios/app/sleemon-smart/id1544014392)

**In-app purchases:** none


### 工程师APP

[App page](https://appshunter.io/ios/app/app/id1669378563)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sleemon Smart free?

Sleemon Smart is free to download, with no in-app purchases.

### Is 工程师APP free?

工程师APP is free to download, with no in-app purchases.

### Do Sleemon Smart or 工程师APP have ads?

Neither Sleemon Smart nor 工程师APP shows ads.

### Which is updated more often, Sleemon Smart or 工程师APP?

Sleemon Smart ships an update every 28 months, and 工程师APP monthly. Most recently, Sleemon Smart was updated on May 16, 2026 and 工程师APP on September 25, 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.*