# 云执照 vs PF One

The clearest difference is rating: PF One at 5.0 against 云执照's 1.3. PF One also leads on iOS requirement (13.0 vs 15.0). 云执照's advantage is ratings volume (83 vs 2). 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.

PF One holds the better App Store score, 5.0 against 1.3. That said, the two scores are not equally well evidenced: 云执照 has 83 ratings behind it against 2, so its average is the more settled of the two.

云执照 ships an update monthly, PF One every 2 weeks. The most recent releases landed on September 25, 2026 and August 1, 2026 respectively.

## The numbers

| Metric | 云执照 | PF One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.3 (83 ratings)](https://appshunter.io/ios/app/id1127299042/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pf-one/id6751495309/reviews)** |
| Number of ratings | **83** | 2 |
| Positive reviews | 14.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 67 MB | 28 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [中国民用航空局信息中心](https://appshunter.io/developer/1112456437) | [Shenzhen Pailefei Consulting Services Co., Ltd.](https://appshunter.io/developer/1832721362) |

## What reviewers say

### 云执照

[App page](https://appshunter.io/ios/app/id1127299042)

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

**In-app purchases:** none


### PF One

[App page](https://appshunter.io/ios/app/pf-one/id6751495309)

This aviation dictionary and pilot toolbox offers a vast database of over 20,000 aviation terms, with Chinese-English support. It features category browsing, search, airport codes, and practical tools like an interview checklist and flight time calculator. Access information offline and benefit from continuous updates.

**Highlights:** Extensive aviation database (20,000+ entries), Chinese-English paired entries, Category filters and search, Airport and code reference, Pilot interview checklist, Flight time calculator, Offline access

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

**In-app purchases:** none


## Frequently asked questions

### Is 云执照 free?

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

### Is PF One free?

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

### Which has better reviews, 云执照 or PF One?

PF One is rated higher. 云执照 averages 1.3 out of 5 from 83 ratings, while PF One averages 5.0 from 2 ratings.

### Do 云执照 or PF One have ads?

Neither 云执照 nor PF One shows ads.

### Which is updated more often, 云执照 or PF One?

云执照 ships an update monthly, and PF One every 2 weeks. Most recently, 云执照 was updated on September 25, 2026 and PF One on August 1, 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.*