# iformula vs Engineering Physics Quiz

The clearest difference is in-app purchases: iformula at none against Engineering Physics Quiz's 7. iformula also leads on ads (none vs shown). Engineering Physics Quiz's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (12.0 vs 17.6). 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. iformula asks for nothing beyond the download.

iformula ships an update every 2 months, Engineering Physics Quiz every 3 weeks. The most recent releases landed on June 10, 2026 and March 3, 2026 respectively.

## The numbers

| Metric | iformula | Engineering Physics Quiz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/iformula/id325337275/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 59 MB | 68 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Werner](https://appshunter.io/developer/325337278) | [Arshad Iqbal](https://appshunter.io/developer/1547001151) |

## What reviewers say

### iformula

[App page](https://appshunter.io/ios/app/iformula/id325337275)

This app is a comprehensive math learning platform for students and professionals. It offers a vast library of over 1000 math equations and topics, along with features like search, note-taking, and bookmarking. It aims to eliminate the need for physical math textbooks.

**Highlights:** 1000+ math equations and topics, Full-featured search functionality, Note-taking system, Bookmarking for favorite equations, Dual language support (English & German), Dark mode support

**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 iformula free?

iformula 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 iformula or Engineering Physics Quiz have ads?

Engineering Physics Quiz shows ads; iformula does not.

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

iformula ships an update every 2 months, and Engineering Physics Quiz every 3 weeks. Most recently, iformula was updated on June 10, 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.*