# 观测云 vs 航旅通Pay

The clearest difference is iOS requirement: 航旅通Pay at 15.0 against 观测云's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

观测云 ships an update every 6 weeks, 航旅通Pay every 3 weeks. The most recent releases landed on October 26, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | 观测云 | 航旅通Pay |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 27 MB | 71 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [常州观测云信息科技有限公司](https://appshunter.io/developer/6796597087) | [济南航旅通电子商务有限公司](https://appshunter.io/developer/1423489842) |

## What reviewers say

### 观测云

[App page](https://appshunter.io/ios/app/id1494097190)

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

**In-app purchases:** none


### 航旅通Pay

[App page](https://appshunter.io/ios/app/pay/id6737754422)

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

**In-app purchases:** none


## Frequently asked questions

### Is 观测云 free?

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

### Is 航旅通Pay free?

航旅通Pay is free to download, with no in-app purchases.

### Do 观测云 or 航旅通Pay have ads?

Neither 观测云 nor 航旅通Pay shows ads.

### Which is updated more often, 观测云 or 航旅通Pay?

观测云 ships an update every 6 weeks, and 航旅通Pay every 3 weeks. Most recently, 观测云 was updated on October 26, 2026 and 航旅通Pay on November 4, 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.*