# Formula Kit — Equation Editor LaTeX Math

> Offline LaTeX formula editor with real-time rendering and export options. (iPhone/iPad app by 玉良 刘.)

- Source: https://appshunter.io/ios/app/formula-kit/id6783818766 (this page in markdown: same URL + `.md`)
- Developer: [玉良 刘](https://appshunter.io/developer/6777819983)
- Category: Education, Utilities
- Price: Free (on sale, was $0.99)
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: Russian, German (Germany), Italian, Japanese, French (France), Chinese (Simplified, China), Chinese (Traditional, Taiwan), American English, European Portuguese, European Spanish and 2 more
- Released: 2026-07-07
- Data updated: 2026-08-22
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/formula-kit/id6783818766/reviews.md

## What is Formula Kit?

Your pocket LaTeX formula editor, whether it's writing academic papers, lesson preparation notes, or organizing science and engineering notes, FormulaKit can help you efficiently input, edit, and export formulas.

Core Features:

LaTeX real-time rendering is based on the KaTeX engine, with input visible immediately. Supports over 400 preset formula templates, covering 14 disciplines including algebra, calculus, linear algebra, probability and statistics, physics, chemistry, and computer science.

Exclusive auxiliary keyboard is a custom keyboard optimized for formula input, with clear symbol panel classification (Greek letters, operators, sets, arrows, matrices, etc.), precise cursor dragging, greatly improving input efficiency.

Image export, one click save formula as high-definition image to album, convenient for inserting documents, PPT or sharing with others; Code export, export Latex, MathML, HTML, SVG code.

Formula library and classification management support creating custom folders and categorizing to save formulas. Pre set 405 classic formulas out of the box, commonly used formulas can be easily saved with just one click.

History and preview automatically save editing history, supporting quick thumbnail browsing. Full screen preview mode, automatically prompted after copying the formula.

highlights

Completely offline - no network required, all functions run locally
Privacy priority - Formula data cannot be exported from the device
Lightweight and efficient - fast startup, smooth rendering
Pure offline payment - one-time purchase, permanent use
Target Audience

Students (high school/university/graduate)
Teachers and Professors
researcher
Engineers and technical writers
Anyone who needs to input mathematical formulas

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

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

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/formula-kit/id6783818766/reviews.md

### 5/5 — 超级无敌爆炸好用！

*2026-07-27*

界面简洁用起来非常方便，做出这个软件的简直是天才来的

### 5/5 — 简单实用

*2026-07-08*

界面简洁，使用起来很方便，还有历史记录，软件很好用

### 5/5 — 用过最好用的

*2026-07-08*

没有广告，一次性收费，洁面清晰干净。

### 5/5 — 软件很不错

*2026-07-08*

找了好久终于找到一款合适的公式编辑软件了，其他都是啥玩意，三块钱很划算，搞得不错

### 5/5 — 贼拉好用

*2026-07-08*

简单易操作，nice ！！！

### 5/5 — 界面简洁，功能实用

*2026-07-08*

轻量级应用，便捷高效，欢迎大家使用！

## Frequently asked questions about Formula Kit

### How does Formula Kit handle LaTeX rendering?

Formula Kit uses the KaTeX engine for real-time LaTeX rendering, meaning your input is visible immediately as you type. This ensures a smooth and accurate formula creation experience.

### What kind of formulas can I create with Formula Kit?

Formula Kit supports over 400 preset formula templates across 14 disciplines, including algebra, calculus, physics, and chemistry. You can also create custom formulas using the auxiliary keyboard.

### Can I export my formulas from Formula Kit?

Yes, you can export formulas as high-definition images for easy insertion into documents or presentations. You can also export them as LaTeX, MathML, HTML, or SVG code.

### Does Formula Kit require an internet connection?

No, Formula Kit is completely offline. All functions run locally on your device, ensuring privacy and accessibility without needing a network connection.

### How does Formula Kit manage saved formulas?

Formula Kit allows you to create custom folders and categorize your saved formulas for efficient management. It also comes with 405 classic formulas pre-set for easy saving.

### What is the pricing model for Formula Kit?

Formula Kit operates on a pure offline payment model, meaning it is a one-time purchase for permanent use. There are no recurring subscription fees.

### Is Formula Kit suitable for younger students?

Formula Kit is rated for ages 4 and up, making it accessible for students across various educational levels, from high school to graduate studies.

### How often is Formula Kit updated?

The latest version, 1.4, was released on August 21, 2026, indicating active development and regular updates to improve functionality and add new features.

## Version history (last 5 releases)

### 1.4 — 2026-08-21

1. Fix known issues.

### 1.3 — 2026-08-20

1. Fix known issues.

### 1.2 — 2026-08-02

1. Fix known issues.

### 1.1 — 2026-08-01

1、优化界面交互。
2、修复已知问题。
3、增加搜藏功能。
4、多语言支持。

### 1.0 — 2026-07-07

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*