# i vs 星空服务助手

The clearest difference is update cadence: 星空服务助手 at monthly against i's every 14 months. 星空服务助手 also leads on iOS requirement (12.0 vs 16.0). 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.

i ships an update every 14 months, 星空服务助手 monthly. The most recent releases landed on October 12, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | i | 星空服务助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (14 ratings)](https://appshunter.io/ios/app/i-scale/id926099803/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Monthly** |
| Monetization | Free | — |
| Size | 5 MB | 36 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Qingying Electronic Technology LLC](https://appshunter.io/developer/926099802) | [Chengdu uoko intelligence home information technology co.,LTD.](https://appshunter.io/developer/1295606631) |

## What reviewers say

### i

[App page](https://appshunter.io/ios/app/i-scale/id926099803)

Transform your microscope into a digital one using your phone and a special adapter. Capture images with embedded scale bars and annotations, then easily share them with others.

**Highlights:** Capture digital micrographs, Support magnification up to 5 objectives, Scale-bar embedding and calibration, Stamp remarks, date/time, magnification, Direct email and message sharing

**Features:** macOS Compatibility

**In-app purchases:** none


### 星空服务助手

[App page](https://appshunter.io/ios/app/id1465861066)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is i free?

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

### Is 星空服务助手 free?

星空服务助手 is free to download, with no in-app purchases.

### Do i or 星空服务助手 have ads?

Neither i nor 星空服务助手 shows ads.

### Which is updated more often, i or 星空服务助手?

i ships an update every 14 months, and 星空服务助手 monthly. Most recently, i was updated on October 12, 2026 and 星空服务助手 on October 28, 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.*