# Calculator - CalcRight — Ad Free & Backspace

> Ad-free calculator with backspace, parentheses, and priority rules. (iPhone/iPad app by Studio Nano Ship, Inc..)

- Source: https://appshunter.io/ios/app/calculator-calcright/id932093526 (this page in markdown: same URL + `.md`)
- Developer: [Studio Nano Ship, Inc.](https://appshunter.io/developer/818733631)
- Category: Utilities, Productivity
- Price: Free
- Rating: 4.80/5 from 859 App Store ratings · 43 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 1 MB
- Languages: American English, French (France)
- Released: 2014-12-31
- Data updated: 2026-09-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calculator-calcright/id932093526/reviews.md

## What is Calculator?

Ad-free calculator.  

It includes a backspace button and parentheses.

Key Features:
Ad-free App
Backspace Button
Priority Rules
Easy To Use

## Key features

- Ad-free experience
- Backspace button
- Parentheses support
- Priority rules
- Easy to use interface

## What do users think of Calculator?

Overall sentiment: positive

**Pros**

- 👍 No advertisements or in-app purchases
- 👍 Simple and intuitive user interface
- 👍 Easy to read and clear display
- 👍 Backspace/delete key functionality
- 👍 Calculation history/storage feature
- 👍 Lightweight with minimal memory usage
- 👍 Free application
- 👍 Fast and reliable performance
- 🔋 Excellent battery efficiency
- 👍 Well-designed and thoughtful interface

**Cons**

- 📱 Does not support landscape/rotation mode on iPad
- 🎨 Obnoxious color scheme (pink and green)
- ❌ Missing scientific calculator features
- ❌ Limited advanced functionality
- 🐛 App crashes on startup (occasional)
- ❌ Missing exponent/power calculation option
- ❌ No running total display
- ❌ No button press sound feedback

**Commonly reported bugs**

- App abruptly closes on startup (reported twice by one user)
- Does not auto-rotate on iPad Pro

**Most requested features**

- iPad landscape/rotation mode support
- Scientific calculator functions
- Exponent/power calculation option
- Running total display
- Button press sound effects
- More customizable color schemes

## Recent user reviews (10 of 43)

All indexed reviews: https://appshunter.io/ios/app/calculator-calcright/id932093526/reviews.md

### 5/5 — Clear & Easy to Read

*2025-07-08*

Thank you,  Nice

### 5/5 — Simple

*2025-05-08, version 2.1.6*

Easy to use, very useful, better calculator with much less memory usage than iPhone or android pre-installed apps.

### 5/5 — Parfaite pour moi

*2025-04-28*

J’apprécie  l’espacement des touches qui m’évite les fautes de frappe.

### 5/5 — X-pert for games

*2024-12-18, version 2.1.6*

I like Calc-right because it’s not just like a game.Better.Because it helps me no math and when there is a math component in school for my kids it would make it easier to understand.not like the other kids.and it will make it easier for kids games like todo math.and also it is ad Free.it also has a storage which you did a long time ago.for an example,on Mar the first calculation you did was 471+416=887.that’s why I like it.

### 5/5 — Avis calculatrice

*2024-11-29*

Elle est parfaite.
Merci.

### 5/5 — Best App EVER

*2024-10-12*

Thank you for giving customers what they want. Very happy with app. Checks all the boxes for me.

### 5/5 — AWESOME

*2024-06-05*

Love the no ads in this app!!!!!!
Don’t change a THING!!!!!

### 5/5 — Excelente

*2024-03-15*

lo que estaba necesitando

### 5/5 — Parfaite

*2024-02-21*

Excellente calculatrice facile à utiliser 
Je recommande

### 5/5 — THANK U

*2023-07-20*

Thank u for making a FREE EZ to use calculator without annoying ads!!! The most important thing is the BACK SPACE KEY some calculators LACK that how many freakin times I make a mistake and have to use a BACK SPACE KEY n many of these calculators I looked at don’t have that so THANKS I LOVE this CALCULATOR & plan on KEEPING it!!!!

## Frequently asked questions about Calculator

### What does this calculator app do?

This app provides a clean and ad-free interface for performing calculations. It includes essential features like a backspace button, support for parentheses, and adheres to priority rules for accurate mathematical operations.

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

The key features include an ad-free experience, a convenient backspace button for correcting errors, support for parentheses to manage complex expressions, and adherence to standard mathematical priority rules. It is also designed to be easy to use.

### Is this calculator app free to use?

Yes, this calculator app is completely free to use. It is also ad-free, meaning you can perform calculations without any interruptions from advertisements.

### What kind of calculations can I perform?

You can perform a wide range of calculations, from basic arithmetic to more complex equations involving parentheses and multiple operations. The app's adherence to priority rules ensures accurate results.

## Version history (last 5 releases)

### 2.1.6 — 2021-12-12

Calculator input: When input is too long, use multiple lines

### 2.1.5 — 2021-10-10

Metadata update

### 2.1.4 — 2021-01-28

Fixed iPad issue - calculator crammed down in the lower half of the screen.

### 2.1.3 — 2021-01-27

Support for in-app suggestion/review

### 2.1.2 — 2021-01-16

- Fixed equation display on large screens

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## More apps by Studio Nano Ship, Inc.

- [Altimeter & Precision - Simple](https://appshunter.io/ios/app/altimeter-and-precision-simple/id956232336)
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All apps by Studio Nano Ship, Inc.: https://appshunter.io/developer/818733631

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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 2026-09-06.*