# Calculator - Free Calculator

> Simple, reliable standard calculator app for iPad and iOS 9. (iPhone/iPad app by 祥祎 刘.)

- Source: https://appshunter.io/ios/app/calculator-free-calculator/id1093415977 (this page in markdown: same URL + `.md`)
- Developer: [祥祎 刘](https://appshunter.io/developer/1071522659)
- Category: Utilities, Education
- Price: Free
- Rating: 4.20/5 from 1,432 App Store ratings · 284 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 18 MB
- Languages: American English, Arabic, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Indonesian, Italian and 15 more
- Released: 2016-03-29
- Data updated: 2026-08-30
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calculator-free-calculator/id1093415977/reviews.md

## What is Calculator?

Calculator - optimized for iPad & iOS 9, standard, simple and reliable!

FEATURES:
standard calculator app
optimized for iPad & iOS 9
optimised for high resolution screen
charming piano sound
NO annoying popups ads!

## Key features

- Standard calculator functionality
- Optimized for iPad & iOS 9
- High-resolution screen optimization
- Charming piano sound effect
- No annoying pop-up ads

## What do users think of Calculator?

Overall sentiment: positive

**Pros**

- 👍 Simple and easy to use
- 🎶 Piano sound effects
- 💰 Free with no subscription
- 🆓 No ads
- 🆘 Helpful for homework and math problems

**Cons**

- 🔍 Lacks advanced features (no percentage, square root, etc.)
- 📏 Cannot rotate to landscape mode
- 🐛 Occasional crashes or inaccurate results
- 📱 Not optimized for iPad use

**Commonly reported bugs**

- Crashes when performing certain calculations
- Inaccurate results for some equations

**Most requested features**

- Add percentage and square root functions
- Allow landscape mode
- Improve accuracy and stability

## Recent user reviews (10 of 284)

All indexed reviews: https://appshunter.io/ios/app/calculator-free-calculator/id1093415977/reviews.md

### 5/5 — ⭐️⭐️⭐️⭐️⭐️👍👍👍👍👍👍👍👍👍👍👍👍👍👍

*2026-08-08, version 4.4*

I love the piano sounds and the calculator cool so ⭐️⭐️⭐️⭐️⭐️👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍

### 3/5 — Calculator

*2026-07-23, version 4.4*

It has pop up ads

### 5/5 — Calculator

*2026-07-07, version 4.4*

Works great.
Had no issues with it working properly.

### 5/5 — This is recommended

*2026-06-27, version 4.4*

It’s rlly smooth and educational. Also makes piano sounds like ur playing a piano but it’s a calculator and with no spam ads.Its all free air and its good but there is not many options as i expected it to be…but its good.

### 5/5 — Just Awesome

*2026-05-31, version 4.4*

Easy to use and it’s just awesome tool to have on your phone.

### 5/5 — Fun

*2026-04-11, version 4.4*

It was great fun

### 4/5 — 𝘞𝘰𝘯𝘥𝘦𝘳𝘧𝘶𝘭

*2026-04-09, version 4.4*

𝘐𝘵'𝘴 𝘷𝘦𝘳𝘺 𝘴𝘪𝘮𝘱𝘭𝘦 𝘩𝘰𝘸 𝘐 𝘭𝘪𝘬𝘦 𝘪𝘵 👍.𝘞𝘩𝘦𝘯𝘺𝘰𝘶 𝘱𝘳𝘦𝘴𝘴 𝘰𝘯 𝘴𝘰𝘶𝘯𝘥 🔊𝘪𝘴 𝘮𝘢𝘬𝘦𝘴 𝘮𝘶𝘴𝘪𝘤 𝘸𝘩𝘪𝘤𝘩 𝘐 𝘢𝘭𝘴𝘰 𝘳𝘦𝘢𝘭𝘭𝘺 𝘭𝘪𝘬𝘦. 𝘐𝘵 𝘮𝘢𝘬𝘦𝘴 𝘭𝘪𝘧𝘦 𝘦𝘢𝘴𝘪𝘦𝘳. 𝘐 𝘸𝘰𝘶𝘭𝘥 𝘳𝘦𝘤𝘰𝘮𝘮𝘦𝘯𝘥 𝘵𝘩𝘪𝘴 𝘢𝘱𝘱 𝘵𝘰 𝘶𝘴𝘦 𝘪𝘯 𝘭𝘪𝘧𝘦 𝘪𝘵'𝘴 𝘦𝘹𝘤𝘦𝘭𝘭𝘦𝘯𝘵!!! 💯👌👍

### 2/5 — How to use it

*2026-03-27, version 4.4*

Does anyone know how to use this app? Please let me know?

### 5/5 — This changed my life

*2026-03-16, version 4.4*

The sheer beauty of the numbers 1,2,3,4 and 5 inspired me to become the brilliant artist I am today and I have only this app to thank!

### 5/5 — Happy

*2026-03-05, version 4.4*

Basic and handy little app

## Frequently asked questions about Calculator

### What does this calculator app do?

This app provides standard calculator functionality for performing basic arithmetic operations. It is designed to be simple, reliable, and optimized for iPad and iOS 9 devices.

### What are the key features of this calculator?

Key features include standard calculation capabilities, optimization for iPad and iOS 9, high-resolution screen optimization, a charming piano sound effect for button presses, and the absence of annoying pop-up advertisements.

### Is this calculator app free to use?

Yes, this calculator app is completely free to use. There are no costs associated with downloading or utilizing its standard calculator features.

### What devices is this calculator app compatible with?

The app is specifically optimized for iPad and iOS 9 devices. It is designed to work seamlessly on these platforms, taking advantage of their features and screen resolutions.

### What are common use cases for this calculator?

This calculator is ideal for everyday calculations, whether for schoolwork, personal finance, or quick estimations. Its simplicity and reliability make it a go-to tool for basic mathematical needs on an iPad.

## Version history (last 4 releases)

### 4.4 — 2016-07-22

a tiny bug fixed

### 4.3 — 2016-07-21

change icon

### 3.8 — 2016-04-27

tweak UI

### 3.7 — 2016-03-29

No release notes.

## Apps similar to Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Big Button Calculator Pro Lite](https://appshunter.io/ios/app/big-button-calculator-pro-lite/id1131056808) | 4.7 (13,954) | Free | Utilities |
| [calculator HD⁻](https://appshunter.io/ios/app/calculator-hd/id1485888099) | 4.5 (2,496) | Free | Utilities |
| [Basic Calculator+](https://appshunter.io/ios/app/basic-calculator-plus/id539356791) | 4.9 (242,697) | Free | Utilities |
| [Calculator for iPad₊](https://appshunter.io/ios/app/calculator-for-ipad/id1174240047) | 4.5 (126,014) | Free | Utilities |
| [Calculator‰](https://appshunter.io/ios/app/calculator/id486645049) | 4.9 (409,057) | Free | Utilities |
| [Calculator⁼](https://appshunter.io/ios/app/calculator/id487127942) | 4.6 (358,262) | Free | Utilities |

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- [黄帝内经 - 精确原文【有声】免流量](https://appshunter.io/ios/app/id1075767132)
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- [三国演义 - 精确原文【有声】免流量](https://appshunter.io/ios/app/id1080081542)

All apps by 祥祎 刘: https://appshunter.io/developer/1071522659

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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 2026-08-30.*