# CalcApp - Simple Calculator — New Calculation Experience

> All-in-one calculator with scientific, programmer, and unit conversion features. (iPhone/iPad app by 尉 张.)

- Source: https://appshunter.io/ios/app/calcapp-simple-calculator/id1211638570 (this page in markdown: same URL + `.md`)
- Developer: [尉 张](https://appshunter.io/developer/1211638569)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.60/5 from 19 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.4 · 4 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2017-03-06
- Data updated: 2026-08-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calcapp-simple-calculator/id1211638570/reviews.md

## What is CalcApp?

Tired of juggling multiple calculators and conversion apps for different tasks? With this all-in-one Calculator, you can breeze through everything from basic arithmetic to advanced scientific functions and even programmer-specific conversions—right at your fingertips. Whether you’re a student crunching numbers, a professional tackling complex equations, or a developer needing quick logic and base conversions, we’ve got you covered. Plus, every result is automatically saved to your History, so you’ll never lose important calculations again.

Key Features:
- Basic Arithmetic: Quick and easy for your everyday math needs.
- Scientific Calculator: Effortlessly handle trigonometric, logarithmic, and other high-level operations.
- Programmer Mode: Seamlessly switch between binary, octal, decimal, and hexadecimal, plus logical operations.
- Unit Converter: Instantly convert lengths, volumes, temperatures, and more—no extra steps needed.
- History Tracking: Automatically record and revisit your calculations at any time.

Download now to transform your smartphone into the ultimate computation powerhouse, ready to solve any math or conversion challenge in seconds!

## Key features

- Basic Arithmetic
- Scientific Calculator
- Programmer Mode
- Unit Converter
- History Tracking

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Annual Subscription | $1.99 | one-time |
| Monthly Plan | $0.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/calcapp-simple-calculator/id1211638570/reviews.md

### 2/5 — Used to love it

*2025-02-03*

The new updated version is bad. Collecting data? Subscription is not worth it. I’m going back to the official calculator.

### 5/5 — 超级推荐

*2025-01-15*

简单好看，无广告

### 5/5 — 非常nice的计算器

*2023-09-26*

很喜欢这款计算器 启动快 无广告 界面整洁
另外有个小小的建议  就是计算结果特别大的时候 为了方便读数 能否将最高位直接标记出来 比如：999×999=998,001 (十万) 我可以直接读数了 不用每次都：个 十 百 千 万 十万 百万这样去数 这个真的会很方便

### 5/5 — 五星给你顶起来

*2023-09-14*

简洁实用 记录很好找数据

## Frequently asked questions about CalcApp

### Does CalcApp have ads?

No, CalcApp is ad-free, providing an uninterrupted user experience for all its calculation and conversion features.

### What devices is CalcApp available on?

CalcApp is available on iPhone and iPad devices, offering a consistent experience across Apple's mobile platforms.

### How often is CalcApp updated?

The latest version, 2.2.3, was released on December 30, 2025, indicating the app is actively maintained and updated.

### What is the age rating for CalcApp?

CalcApp has an age rating of 4+, making it suitable for a wide range of users, including younger individuals learning basic math.

### Can I access past calculations in CalcApp?

Yes, CalcApp automatically saves all your calculations to a History Tracking feature, allowing you to easily revisit them at any time.

### What types of conversions does CalcApp support?

CalcApp offers a comprehensive Unit Converter that can instantly convert lengths, volumes, temperatures, and more, eliminating the need for separate apps.

### What makes CalcApp's programmer mode useful?

The programmer mode in CalcApp allows for seamless switching between binary, octal, decimal, and hexadecimal number systems, along with logical operations for developers.

### What do users like about CalcApp?

Users appreciate CalcApp's all-in-one functionality, combining basic, scientific, programmer, and unit conversion tools into a single, convenient application.

## Version history (last 5 releases)

### 2.2.3 — 2025-12-30

Fixed some known issues

### 2.2.2 — 2025-11-14

- Fixed some known issues
- Added support for iOS 26

### 2.2.1 — 2025-01-17

Update Notes:
- Fixed display issues for some expressions.

### 2.2.0 — 2025-01-15

Version 2.2.0
- New calculation features added: Scientific calculations, unit conversions, programmer calculator.
- UI Enhancements: Polished interface elements for a smoother and more intuitive experience
- Performance Boost: Improved overall speed and stability, with fewer lags and crashes
- Bug Fixes: Addressed display issues on certain devices

### 2.1.9 — 2024-11-22

New Features:

- Add notes to your expressions.
- Introduced amount-in-words conversion for Mainland China users.

Fixed:

- Fixed the issue where the history display was abnormal on iOS 16.

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## More apps by 尉 张

- [Payday: Subscription Tracker](https://appshunter.io/ios/app/payday-subscription-tracker/id6759246798)

All apps by 尉 张: https://appshunter.io/developer/1211638569

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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 2026-08-09.*