# Quick Formula Calculator — Create custom formulas fast

> Build and use custom calculators with variables, functions, and units. (iPhone/iPad app by 庆鸿 林.)

- Source: https://appshunter.io/ios/app/quick-formula-calculator/id6754241699 (this page in markdown: same URL + `.md`)
- Developer: [庆鸿 林](https://appshunter.io/developer/1558629938)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Rating: 2.00/5 from 1 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 31 MB
- Languages: Hindi, Japanese, Chinese (Simplified, China), Chinese (Traditional, Hong Kong SAR China), American English, European Portuguese, Korean
- Released: 2025-10-31
- Data updated: 2026-09-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/quick-formula-calculator/id6754241699/reviews.md

## What is Quick Formula Calculator?

Turn any idea into a calculator you can trust. Formula Calculator lets you build custom calculators with variables, functions and units—perfect for study, engineering, finance, science and daily life.

【Core Features】

    • Build Your Own Calculators
        - Define inputs with friendly names and default values
        - Choose units (kg, m, USD, etc.) for clear results
        - Write expressions using common math functions
        - Control decimal places for precise outputs
        - Preview results instantly while typing

    • Organize Everything
        - Use tags to group formulas (geometry, statistics, BMI, physics, finance)
        - Search across all formulas in seconds
        - Sort by name, time, or custom order
        - Reuse sub-formulas to keep complex projects tidy

    • Never Lose Your Work
        - Every calculation saved to History automatically
        - Recalculate with one tap
        - Export data when needed
        - Keep progress across sessions

    • Built-in Date Calculator
        - Find days before/after any date
        - Calculate the number of days between two dates
        - Perfect for planning and deadlines

【Perfect For】

    - Students - Geometry, physics, statistics calculations
    - Engineers - Custom engineering formulas
    - Finance - Compound interest, ROI, loan calculations
    - Daily Life - BMI, cooking conversions, date planning

Clean design, instant feedback, and powerful tools make this the one "formula calculator" you'll use every day. Build once, use forever.

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/quick-formula-calculator/id6754241699/reviews.md

### 2/5 — Could be good

*2026-07-07*

The ui is clunky and frustrating and it also will delete your work if you go to another app for a second without going to the Home Screen first. I just lost like 40 minutes of tedious work.

### 5/5 — 好用，便捷

*2026-05-25*

能否增加一个功能，可以将历史记录命名🤓

**Developer response:** 您好，最新版本已经支持历史记录命名，感谢支持。

### 4/5 — 有BUG

*2026-01-01*

你的角度目前是弧度制，需要改一下

**Developer response:** 您好，最新版本已经支持使用度数计算。

### 5/5 — 不错

*2025-11-01*

很好用，方便快捷！

## Frequently asked questions about Quick Formula Calculator

### What is Quick Formula Calculator?

Quick Formula Calculator allows you to create your own personalized calculators. You can define inputs, variables, functions, and units to build tools for studying, engineering, finance, and everyday tasks.

### Can I create my own formulas in Quick Formula Calculator?

Yes, you can build your own calculators by defining friendly input names, choosing units, and writing expressions using common math functions. You can also control decimal places for precise outputs.

### How does Quick Formula Calculator help organize formulas?

You can use tags to group your formulas by category, such as geometry, statistics, or finance. The app also allows you to search across all formulas and sort them by name, time, or custom order.

### Does Quick Formula Calculator have a date calculator?

Yes, Quick Formula Calculator includes a built-in date calculator. You can use it to find days before or after any date, and calculate the number of days between two specific dates.

### Is Quick Formula Calculator suitable for students?

Yes, Quick Formula Calculator is perfect for students, offering tools for geometry, physics, and statistics calculations. Its ability to create custom formulas makes it a versatile educational aid.

### What devices does Quick Formula Calculator support?

Quick Formula Calculator is available for iPhone, iPad, and iPod. It was released on October 31, 2025, and the latest version is 1.0.7, last updated on June 5, 2026.

### Does Quick Formula Calculator have ads?

Yes, Quick Formula Calculator contains advertisements. It is available for free but includes ads as part of its distribution model.

### What is the user rating for Quick Formula Calculator?

Quick Formula Calculator has a rating of 2.0 stars based on 1 rating. This indicates a mixed user reception based on the available data.

## Version history (last 5 releases)

### 1.0.7 — 2026-06-05

1. Name your calculation records for easier review
2. Better ordering experience when arranging formulas, inputs, and results
3. Smoother history management and record export

### 1.0.6 — 2026-04-13

1. Improved app stability and performance
2. Updated for better device compatibility

### 1.0.5 — 2026-03-19

1. Improved formula calculation stability and overall experience.
2. The custom keyboard now makes it easier to reference output names.
3. Enhanced degree input and chained calculations.

### 1.0.4 — 2026-03-18

1. Improved formula parsing and calculation stability for complex expressions.
2. Added the degree symbol “°” to the custom keyboard with automatic conversion for calculations.
3. Enabled referencing previous outputs as variables in subsequent output expressions.

### 1.0.3 — 2026-02-24

What's New in Formula 1.0.3
1. Improved "My" page display and experience.
2. Updated app configuration and dependencies.
3. Fixed known issues.

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All apps by 庆鸿 林: https://appshunter.io/developer/1558629938

## Related topics

[quick formula calculator](https://appshunter.io/ios/topics/quick-formula-calculator) · [formula calculator](https://appshunter.io/ios/topics/formula-calculator)

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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 2026-09-03.*