# 太乙神數 vs EHangOS

The clearest difference is price: EHangOS at Free against 太乙神數's $39.99. EHangOS also leads on update cadence (every 2 weeks vs every 4 months). 太乙神數's advantage is iOS requirement (15.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

EHangOS is free to download; 太乙神數 costs $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.

太乙神數 ships an update every 4 months, EHangOS every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 太乙神數 | EHangOS |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6476464538/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 10 MB | 66 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 17+ | 17+ |
| Developer | [力千 肖](https://appshunter.io/developer/1475070901) | [Ehang, Inc.](https://appshunter.io/developer/942404339) |

## What reviewers say

### 太乙神數

[App page](https://appshunter.io/ios/app/id6476464538)

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

**In-app purchases:** none


### EHangOS

[App page](https://appshunter.io/ios/app/ehangos/id6795453535)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 太乙神數 free?

太乙神數 costs $39.99, with no in-app purchases.

### Is EHangOS free?

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

### Do 太乙神數 or EHangOS have ads?

Neither 太乙神數 nor EHangOS shows ads.

### Which is updated more often, 太乙神數 or EHangOS?

太乙神數 ships an update every 4 months, and EHangOS every 2 weeks. Most recently, 太乙神數 was updated on October 30, 2026 and EHangOS on October 31, 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.*