# iformula vs Quick Formula Calculator

The clearest difference is rating: iformula at 4.0 against Quick Formula Calculator's 2.0. iformula also leads on in-app purchases (none vs 1) and ads (none vs shown). Quick Formula Calculator's advantage is review sentiment (75% vs 65%) and iOS requirement (15.6 vs 17.6). On price, ratings volume, update cadence and device support there is nothing between them.

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

iformula holds the better App Store score, 4.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 65% of iformula's written reviews are positive against 75% of Quick Formula Calculator's, so the app with the better star average is not the one people write more warmly about.

iformula ships an update every 2 months, Quick Formula Calculator monthly. The most recent releases landed on October 13, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | iformula | Quick Formula Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/iformula/id325337275/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/quick-formula-calculator/id6754241699/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 65.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 59 MB | 32 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tobias Werner](https://appshunter.io/developer/325337278) | [庆鸿 林](https://appshunter.io/developer/1558629938) |

## 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


### Quick Formula Calculator

[App page](https://appshunter.io/ios/app/quick-formula-calculator/id6754241699)

Create custom calculators for any purpose, from academic studies to financial planning. Define variables, functions, and units for precise results. Organize and save your formulas with ease, and access a built-in date calculator for planning.

**Highlights:** Build custom calculators, Define variables and units, Use common math functions, Organize formulas with tags, Automatic calculation history, Built-in date calculator

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Membership | $9.99 | one-time |


## Frequently asked questions

### Is iformula free?

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

### Is Quick Formula Calculator free?

Quick Formula Calculator is free to download, with in-app purchases available.

### Which has better reviews, iformula or Quick Formula Calculator?

iformula is rated higher. iformula averages 4.0 out of 5 from 1 ratings, while Quick Formula Calculator averages 2.0 from 1 ratings.

### Do iformula or Quick Formula Calculator have ads?

Quick Formula Calculator shows ads; iformula does not.

### Which is updated more often, iformula or Quick Formula Calculator?

iformula ships an update every 2 months, and Quick Formula Calculator monthly. Most recently, iformula was updated on October 13, 2026 and Quick Formula Calculator on October 5, 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.*