# iformula vs Mental Math

The clearest difference is rating: Mental Math at 5.0 against iformula's 4.0. Mental Math also leads on review sentiment (100% vs 65%) and iOS requirement (13.0 vs 17.6). iformula's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume, update cadence and monetization model there is nothing between them.

Both are free to download. Mental Math sells 1 one-off in-app purchase. iformula asks for nothing beyond the download.

Mental Math holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 65% of iformula's written reviews are positive against 100% of Mental Math's.

iformula ships an update every 2 months, Mental Math every 6 weeks. The most recent releases landed on October 13, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | iformula | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/iformula/id325337275/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mental-math-train-your-brain/id1499208866/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | 65.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 59 MB | 51 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Werner](https://appshunter.io/developer/325337278) | [Amna Mahmood](https://appshunter.io/developer/1483939415) |

## 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, Vision Pro support

**In-app purchases:** none


### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-train-your-brain/id1499208866)

This free application helps you improve your mental calculation skills. It assesses your strengths and weaknesses to create a personalized practice plan, offering tips and exercises to master mathematical concepts quickly and efficiently.

**Highlights:** Personalized learning plans, Identifies strengths and weaknesses, Teaches mental math tricks, Practice exercises, Skill assessment

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is iformula free?

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

### Is Mental Math free?

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

### Which has better reviews, iformula or Mental Math?

Mental Math is rated higher. iformula averages 4.0 out of 5 from 1 ratings, while Mental Math averages 5.0 from 2 ratings.

### Do iformula or Mental Math have ads?

Mental Math shows ads; iformula does not.

### Which is updated more often, iformula or Mental Math?

iformula ships an update every 2 months, and Mental Math every 6 weeks. Most recently, iformula was updated on October 13, 2026 and Mental Math on September 27, 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.*