# Yanshee vs Physics Formulas Pro

The clearest difference is price: Yanshee at Free against Physics Formulas Pro's $0.99. Yanshee also leads on iOS requirement (11.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Yanshee is free to download; Physics Formulas Pro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Yanshee | Physics Formulas Pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 163 MB | 5 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [UBTECH ROBOTICS CORP](https://appshunter.io/developer/975970176) | [Jens Borg](https://appshunter.io/developer/1885645868) |

## What reviewers say

### Yanshee

[App page](https://appshunter.io/ios/app/yanshee/id1290088340)

**Features:** macOS Compatibility

**In-app purchases:** none


### Physics Formulas Pro

[App page](https://appshunter.io/ios/app/physics-formulas-pro/id6760673704)

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

**In-app purchases:** none


## Frequently asked questions

### Is Yanshee free?

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

### Is Physics Formulas Pro free?

Physics Formulas Pro costs $0.99, with no in-app purchases.

### Do Yanshee or Physics Formulas Pro have ads?

Neither Yanshee nor Physics Formulas Pro 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.*