# Calculator for Flight vs PF One

The clearest difference is iOS requirement: Calculator for Flight at 6.0 against PF One's 15.0. On price, ads, in-app purchases and monetization model there is nothing between them.

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

## The numbers

| Metric | Calculator for Flight | PF One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pf-one/id6751495309/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | Free | Free |
| Size | 1 MB | 28 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [China Southern Airlines Company Limited](https://appshunter.io/developer/460310141) | [Shenzhen Pailefei Consulting Services Co., Ltd.](https://appshunter.io/developer/1832721362) |

## What reviewers say

### Calculator for Flight

[App page](https://appshunter.io/ios/app/calculator-for-flight/id975103773)

This utility app assists with flight calculations, including time accumulation and descent profiles for non-precision approaches. Registration is free and optional, providing access to all features without limitations.

**Highlights:** Flight time accumulation, Descent profile calculation, Non-precision approach calculations, 60-进制 (sexagesimal) calculator, Free optional registration

**Features:** 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 Calculator for Flight free?

Calculator for Flight is free to download, with no in-app purchases.

### Is PF One free?

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

### Do Calculator for Flight or PF One have ads?

Neither Calculator for Flight nor PF One shows ads.

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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.*