# iformula vs Engineering Math Quiz

The clearest difference is rating: Engineering Math Quiz at 5.0 against iformula's 4.0. Engineering Math Quiz also leads on update cadence (every 3 weeks vs every 2 months) and iOS requirement (12.0 vs 17.6). iformula's advantage is in-app purchases (none vs 7) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

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

Engineering Math Quiz holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

iformula ships an update every 2 months, Engineering Math Quiz every 3 weeks. The most recent releases landed on June 10, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | iformula | Engineering Math Quiz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/iformula/id325337275/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/engineering-math-quiz/id1583491466/reviews)** |
| Number of ratings | 1 | 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** | Free with in-app purchases |
| 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 Math Quiz

[App page](https://appshunter.io/ios/app/engineering-math-quiz/id1583491466)

Practice over 350 engineering math trivia questions with this free iOS app. It offers self-assessment tests and answer keys for various topics, aiding students in their learning and exam preparation.

**Highlights:** 350+ engineering math trivia questions, Self-assessment tests, Answer keys provided, Covers basic and advanced topics, Revision guide for students, Practice for online exams

**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 | $0.99 | 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 Math Quiz free?

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

### Which has better reviews, iformula or Engineering Math Quiz?

Engineering Math Quiz is rated higher. iformula averages 4.0 out of 5 from 1 ratings, while Engineering Math Quiz averages 5.0 from 1 ratings.

### Do iformula or Engineering Math Quiz have ads?

Engineering Math Quiz shows ads; iformula does not.

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

iformula ships an update every 2 months, and Engineering Math Quiz every 3 weeks. Most recently, iformula was updated on June 10, 2026 and Engineering Math Quiz on September 7, 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.*