# 郑常飞 vs eAIP Pad

The clearest difference is update cadence: eAIP Pad at every 2 months against 郑常飞's every 12 months. 郑常飞's advantage is iOS requirement (8.0 vs 17.0). 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.

郑常飞 ships an update every 12 months, eAIP Pad every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 郑常飞 | eAIP Pad |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eaip-pad/id6754688702/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 68 MB | 11 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [广东机场白云信息科技有限公司](https://appshunter.io/developer/1153268667) | [春浩 金](https://appshunter.io/developer/1849289481) |

## What reviewers say

### 郑常飞

[App page](https://appshunter.io/ios/app/id1420994997)

**In-app purchases:** none


### eAIP Pad

[App page](https://appshunter.io/ios/app/eaip-pad/id6754688702)

Access a comprehensive Chinese eAIP aviation database on your mobile device. This app provides essential airport charts, airway maps, and airport details for flight preparation and simulation. Easily pin favorite charts and import updated data from various sources.

**Highlights:** Complete Chinese eAIP data, Airport charts and airway maps, Pin favorite charts, Import data from local files, Import data from online servers

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

**In-app purchases:** none


## Frequently asked questions

### Is 郑常飞 free?

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

### Is eAIP Pad free?

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

### Do 郑常飞 or eAIP Pad have ads?

Neither 郑常飞 nor eAIP Pad shows ads.

### Which is updated more often, 郑常飞 or eAIP Pad?

郑常飞 ships an update every 12 months, and eAIP Pad every 2 months. Most recently, 郑常飞 was updated on November 2, 2026 and eAIP Pad on October 30, 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.*