# Eureka Calculator vs Formula Kit

The clearest difference is in-app purchases: Formula Kit at none against Eureka Calculator's 2. Formula Kit also leads on update cadence (every 11 days vs every 17 months). Eureka Calculator's advantage is iOS requirement (12.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Eureka Calculator sells 2 one-off in-app purchases. Formula Kit asks for nothing beyond the download.

Eureka Calculator ships an update every 17 months, Formula Kit every 11 days. The most recent releases landed on October 7, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Eureka Calculator | Formula Kit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/eureka-calculator/id925663993/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 11 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 2 MB | 61 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tomas Crespo](https://appshunter.io/developer/888009549) | [玉良 刘](https://appshunter.io/developer/6777819983) |

## What reviewers say

### Eureka Calculator

[App page](https://appshunter.io/ios/app/eureka-calculator/id925663993)

This app is a mobile mathematical programming environment that brings advanced computing power and flexibility to your device. It features a natural symbolic language and an intuitive interface for efficient formula writing and programming.

**Highlights:** Advanced mathematical functions, Customizable interface, Natural symbolic language (Magic), Intuitive keyboard, Efficient programming tool

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium option for iPhone | $4.99 | one-time |
| Premium option for iPad | $9.99 | one-time |


### Formula Kit

[App page](https://appshunter.io/ios/app/formula-kit/id6783818766)

Easily create, edit, and export mathematical and scientific formulas with a dedicated LaTeX editor. Features real-time rendering, a custom keyboard, and extensive template library for offline use.

**Highlights:** Real-time LaTeX rendering, Over 400 formula templates, Custom auxiliary keyboard, Image and code export, Formula library and management, Offline functionality, History and preview

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Eureka Calculator free?

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

### Is Formula Kit free?

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

### Do Eureka Calculator or Formula Kit have ads?

Neither Eureka Calculator nor Formula Kit shows ads.

### Which is updated more often, Eureka Calculator or Formula Kit?

Eureka Calculator ships an update every 17 months, and Formula Kit every 11 days. Most recently, Eureka Calculator was updated on October 7, 2026 and Formula Kit on October 23, 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.*