# Physics Formulas vs Fluid Mechanics Practice

The clearest difference is price: Physics Formulas at Free against Fluid Mechanics Practice's $0.49. Fluid Mechanics Practice's advantage is in-app purchases (none vs 2) and update cadence (every 6 days vs every 2 months). On ads and device support there is nothing between them.

Physics Formulas is free to download; Fluid Mechanics Practice costs $0.49 up front. Physics Formulas sells 2 in-app purchases, starting at $3.99 per 7 days. Fluid Mechanics Practice asks for nothing beyond the download.

Physics Formulas ships an update every 2 months, Fluid Mechanics Practice every 6 days. The most recent releases landed on November 9, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Physics Formulas | Fluid Mechanics Practice |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 38 MB | 24 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mobin Akhter](https://appshunter.io/developer/1812505286) | [Manish Kumar](https://appshunter.io/developer/1854995154) |

## What reviewers say

### Physics Formulas

[App page](https://appshunter.io/ios/app/physics-formulas-physref/id6757826240)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $3.99 | per 7 days |
| Lifetime Access | $49.99 | one-time |


### Fluid Mechanics Practice

[App page](https://appshunter.io/ios/app/fluid-mechanics-practice/id6757950639)

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

**In-app purchases:** none


## Frequently asked questions

### Is Physics Formulas free?

Physics Formulas is free to download, with in-app purchases available.

### Is Fluid Mechanics Practice free?

Fluid Mechanics Practice costs $0.49, with no in-app purchases.

### Do Physics Formulas or Fluid Mechanics Practice have ads?

Neither Physics Formulas nor Fluid Mechanics Practice shows ads.

### Which is updated more often, Physics Formulas or Fluid Mechanics Practice?

Physics Formulas ships an update every 2 months, and Fluid Mechanics Practice every 6 days. Most recently, Physics Formulas was updated on November 9, 2026 and Fluid Mechanics Practice on November 13, 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.*