# 小花 Xiaohua vs The Formula Calculator

The clearest difference is iOS requirement: The Formula Calculator at 15.0 against 小花 Xiaohua's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

小花 Xiaohua ships an update weekly, The Formula Calculator every 5 days. Both last shipped on November 10, 2026.

## The numbers

| Metric | 小花 Xiaohua | The Formula Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | — | Paid |
| Size | 16 MB | 9 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DA JI](https://appshunter.io/developer/6804701475) | [Sidney Thom](https://appshunter.io/developer/6813788039) |

## What reviewers say

### 小花 Xiaohua

[App page](https://appshunter.io/ios/app/xiaohua/id6804701473)

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

**In-app purchases:** none


### The Formula Calculator

[App page](https://appshunter.io/ios/app/the-formula-calculator/id6813788037)

This app serves as a comprehensive formula library and calculator, designed for tradespeople, engineers, and students. It offers over 200 formulas across various scientific disciplines, with automatic unit conversion and offline functionality.

**Highlights:** Extensive formula library (200+), Automatic unit conversion, Offline functionality, Searchable formulas and elements, Light and dark mode, Multi-language support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 小花 Xiaohua free?

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

### Is The Formula Calculator free?

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

### Do 小花 Xiaohua or The Formula Calculator have ads?

Neither 小花 Xiaohua nor The Formula Calculator shows ads.

### Which is updated more often, 小花 Xiaohua or The Formula Calculator?

小花 Xiaohua ships an update weekly, and The Formula Calculator every 5 days. Most recently, 小花 Xiaohua was updated on November 10, 2026 and The Formula Calculator on November 10, 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.*