# Eng Fluids vs Engineering Physics Quiz

The clearest difference is in-app purchases: Eng Fluids at none against Engineering Physics Quiz's 7. Eng Fluids also leads on ads (none vs shown) and iOS requirement (9.0 vs 12.0). Engineering Physics Quiz's advantage is update cadence (every 3 weeks vs every 13 months). On price and device support there is nothing between them.

Both are free to download. Engineering Physics Quiz sells 7 in-app purchases, starting at $4.99 per month. Eng Fluids asks for nothing beyond the download.

Eng Fluids ships an update every 13 months, Engineering Physics Quiz every 3 weeks. The most recent releases landed on September 21, 2026 and March 3, 2026 respectively.

## The numbers

| Metric | Eng Fluids | Engineering Physics Quiz |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Size | 21 MB | 68 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kurt Gramoll](https://appshunter.io/developer/782218116) | [Arshad Iqbal](https://appshunter.io/developer/1547001151) |

## What reviewers say

### Eng Fluids

[App page](https://appshunter.io/ios/app/eng-fluids/id1540624295)

**Features:** macOS Compatibility

**In-app purchases:** none


### Engineering Physics Quiz

[App page](https://appshunter.io/ios/app/engineering-physics-quiz/id1583491819)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Package | $4.99 | per month |
| 3 Months Package | $9.99 | per 3 months |
| 6 Months Package | $14.99 | per 6 months |
| 1 Year Package | $19.99 | per year |
| 1500 Coins | $0.99 | one-time |
| 3500 Coins | $1.99 | one-time |
| 6000 Coins | $2.99 | one-time |


## Frequently asked questions

### Is Eng Fluids free?

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

### Is Engineering Physics Quiz free?

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

### Do Eng Fluids or Engineering Physics Quiz have ads?

Engineering Physics Quiz shows ads; Eng Fluids does not.

### Which is updated more often, Eng Fluids or Engineering Physics Quiz?

Eng Fluids ships an update every 13 months, and Engineering Physics Quiz every 3 weeks. Most recently, Eng Fluids was updated on September 21, 2026 and Engineering Physics Quiz on March 3, 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.*