# CalcBox -All in One Calculator — Multipurpose calculator

> All-in-one calculator with unit converter, financial tools, and health trackers. (iPhone/iPad app by Realbyte Inc..)

- Source: https://appshunter.io/ios/app/calcbox-all-in-one-calculator/id6480165885 (this page in markdown: same URL + `.md`)
- Developer: [Realbyte Inc.](https://appshunter.io/developer/560481813)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.78/5 from 362 App Store ratings · 107 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 72 MB
- Languages: Arabic, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hebrew and 21 more
- Released: 2024-04-09
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/calcbox-all-in-one-calculator/id6480165885/reviews.md

## What is CalcBox?

CalcBox makes life more convenient with its user-friendly design and smart calculation functions. It efficiently handles various real-life calculations, integrating multiple tools into one app, and features a simple, intuitive interface that anyone can use. Download CalcBox now and simplify your life!

▷ Calculator
Perform basic arithmetic and simple scientific calculations quickly. Equations and results can be saved for future use.

▷ Unit Converter
Convert units like area, length, temperature, weight, volume, data, time, speed, pressure, force, energy, fuel efficiency, and more, making it versatile for various needs.

▷ D-Day Calculator
Calculate days leading up to important dates or see how many days have passed since an anniversary.

▷ World Clock Converter
Check the time in cities around the world or calculate the time across different time zones.

▷ Currency Calculator
Quickly convert exchange rates for international travel or transactions, with offline use supported via saved rates.

▷ BMI Calculator
Enter your height and weight to calculate your BMI and BMR, and visualize results through saved graphs.

▷ Unit Price Calculator
Compare prices by calculating the unit price of multiple products. Save and modify results as needed.

▷ Tip Calculator
Conveniently calculate tips for meals or services, including per-person splits.

▷ Percentage Calculator
Useful for financial transactions, accurately calculating discounts, and taxes.

▷ Discount Calculator
Easily find the final price after discounts, including VAT calculations.

▷ Loan Calculator
Check financial status by calculating loan repayments and interest.

▷ Deposit and Savings Calculator
Calculate future savings by applying deposit amounts and interest rates, including simple and compound interest calculations.

▷ VAT Calculator
Accurately calculate the final price including VAT.

▷ Fuel Efficiency Calculator
Determine your car's fuel efficiency based on mileage and fuel consumption.

▷ Fuel Price Calculator
Calculate your car’s fuel cost using mileage and gas prices.

▷ Ovulation Date Calculator
Predict ovulation and fertile windows, supporting family planning and cycle tracking with health notes.

▷ GPA Calculator
Track academic performance by calculating GPA, aiding in academic planning.

▷ Age Calculator
Calculate your age by entering your birth date, with the option to save and edit results.

▷ Pace Calculator
Determine running pace by entering distance and time, including treadmill speed conversion.

[Disclaimer]
Realbyte Inc. disclaims any responsibility for the accuracy, appropriateness, or reliability of the data provided by the CalcBox app. The company is not liable for errors, omissions, or any damages arising from defects, delays, interruptions, or reliance on the app's information.

Subscription pricing and terms:

CalcBox offers a $0.99/month auto-renewing monthly subscription and a $9.99/year auto-renewing annual subscription, which removes ads and allows users to choose additional app design themes while maintaining an active subscription.

Payment will be charged to the credit card connected to your iTunes Account when you confirm the initial subscription purchase.
Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24-hours prior to the end of the current period, and the cost of the renewal will be identified. 
You may manage your subscription and auto-renewal may be turned off by going to your Account Settings after the purchase. 

Read more about our terms and conditions here:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Privacy Policy:
https://calcbox.realbyteapps.com/privacy.html

## Key features

- Basic and scientific calculations
- Extensive unit and currency conversion
- Financial calculators (loan, deposit, tip, discount)
- Health and fitness trackers (BMI, ovulation)
- Time and date calculations (D-Day, world clock)
- Academic tools (GPA calculator)

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 1 Month Subscription | $0.99 | per month |
| 1 Year Subscription | $9.99 | per year |


## What do users think of CalcBox?

Overall sentiment: positive

**Pros**

- ✨ All-in-one calculator with comprehensive features
- 👍 User-friendly and intuitive interface
- 🆓 Free app with no mandatory payments
- 🔄 Unit conversion capabilities (currency, distance, weight, etc.)
- 📊 Calculation history tracking
- 🎯 Replaces multiple calculator apps
- ⚡ Fast and efficient performance
- 🌍 Multi-language support
- 💰 Great value for money

**Cons**

- 📢 Excessive and intrusive advertisements
- 🚫 No option to remove ads permanently
- 😤 Ads cannot be closed easily
- 💳 Subscription model instead of one-time payment
- 🔄 Ad rotation with deceptive content

**Commonly reported bugs**

- Ads cannot be closed with X button
- Excessive ads appearing after initial use period
- Deceptive ad behavior after one week of use

**Most requested features**

- One-time payment option to remove ads permanently
- Premium ad-free version (like Money Manager app)
- Set as default calculator option
- Deposit/savings calculator with day-level precision
- Bitcoin/cryptocurrency support
- Account checking integration with calculation features

## Recent user reviews (10 of 107)

All indexed reviews: https://appshunter.io/ios/app/calcbox-all-in-one-calculator/id6480165885/reviews.md

### 5/5 — Давно такое искал

*2026-06-01*

Это приложение идеальное, я много что перепробовал, но только это по-настоящему понравилось. Уже больше года веду в нем финансы и каждый раз кайфую, каждая вкладка, каждая кнопка на своём месте. Еще это то приложение, которое не вынуждает купить платную версию, ты просто сам хочешь ее купить из чувства благодарности. Спасибо разработчикам!

### 5/5 — 数字のフォント

*2026-05-05*

1111
2222
数字が揃うフォントにしてもらえると助かります

**Developer response:** いつもお世話になっております。
この度は貴重なご意見をいただき誠にありがとうござました。
今後お客様から頂きました、貴重なご意見を元に改善させていただきたいと思います。
ただ、現在計画されているアップデータの日程により、
実質的な反映日程はお約束できない点、何卒ご理解及びご了承いただけますよう申し上げます。
皆様のご期待に沿えるよう、これからも邁進してまいりますので、
今後ともらくな家計簿を変わらぬご愛顧賜りますようよろしくお願い申し上げます。
ありがとうございます。

### 5/5 — ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️

*2026-04-16*

진짜 편하게 쓸수 있어서 정~~말 좋아요👍👍
제가 계산기를 많이 깔아 놨는데 이게 제일 좋은 것 같아요.
꼭꼭 한번씩 이 앱 사용해보세요.

**Developer response:** 안녕하세요. 편한계산기입니다.
소중한 리뷰 진심으로 감사드립니다.
고객님과 더욱 더 소통하는 편한계산기가 되겠습니다.
감사합니다.

### 5/5 — All in 1 Calculator

*2026-04-13*

To have everything I need in one calculator is awesome. I don’t have to look around at different things.

### 5/5 — 便利です

*2026-02-11*

簡単に単価出してくれるので助かっています

**Developer response:** いつもお世話になっております。
らくな計算機です。
弊社のサービスをご利用いただき誠にありがとうございます。
今後とも持続的なアップデートを通じてお客様のご期待にお応えできるよう、
最善を尽くして参りたいと思います。
よろしくお願いいたします。

### 5/5 — Good

*2026-02-05*

Good

### 5/5 — Great app

*2026-02-03*

Does everything I need.

### 5/5 — 保存機能もついてすごく使いやすいです

*2026-02-01*

保存機能もついて、その項目もついてすごく使いやすいです
私は、Appleさんの計算機も使っていますが、こちらの、履歴・保存機能のほうが確実に見やすいです

ただ、私は家計簿などに使っているため、メモなどコメントが残せるようにしていただけると大変嬉しいです！

**Developer response:** いつもお世話になっております。
らくな計算機です。
弊社のサービスをご利用いただき、誠にありがとうございます。
今後とも何卒らくな計算機をご愛顧賜りますよう、よろしくお願い申し上げます。
ありがとうございます。

### 5/5 — Excelente

*2026-01-24*

Muy útil esta aplicación

### 2/5 — Satishkumar

*2026-01-20*

Let me check if first

## Frequently asked questions about CalcBox

### What does CalcBox do?

CalcBox is a multipurpose calculator app that integrates various tools to simplify everyday calculations. It offers functions for basic arithmetic, scientific calculations, unit conversions, financial planning, health tracking, and academic performance monitoring.

### What are the key features of CalcBox?

Key features include a comprehensive calculator, unit converter for numerous categories, D-Day and world clock functions, currency conversion, BMI and BMR calculation, loan and savings calculators, tip and discount calculators, and academic tools like a GPA calculator.

### How much does CalcBox cost?

The app is free to download and use, with optional auto-renewing subscriptions for $0.99/month or $9.99/year. These subscriptions remove ads and offer additional customization options.

### What devices is CalcBox compatible with?

While specific compatibility details are not provided, the app is designed for mobile devices and is likely available on major platforms like Android and iOS, given its categorization as a mobile application.

### What are some common use cases for CalcBox?

Common use cases include quickly performing everyday math, converting units for shopping or travel, managing personal finances with loan and savings calculators, tracking health metrics like BMI, planning events with the D-Day calculator, and monitoring academic progress with the GPA calculator.

## Version history (last 5 releases)

### 1.2.21 — 2026-08-19

Fixed bugs and improved performance.

v1.2.0
• Pace Calculator has been added.
• Age Calculator has been added.
• Other minor bugs have been resolved.

v1.1.0
• Dark mode theme is available.
• Sound, haptic feedback has been added.
• Reverse calculations on VAT has been enabled.
• S and E grades are included on the GPA calculator.

### 1.2.18 — 2026-05-31

v1.2.0
• Pace Calculator has been added.
• Age Calculator has been added.
• Other minor bugs have been resolved.

v1.1.0
• Dark mode theme is available.
• Sound, haptic feedback has been added.
• Reverse calculations on VAT has been enabled.
• S and E grades are included on the GPA calculator.

### 1.2.17 — 2026-05-08

v1.2.0
• Pace Calculator has been added.
• Age Calculator has been added.
• Other minor bugs have been resolved.

v1.1.0
• Dark mode theme is available.
• Sound, haptic feedback has been added.
• Reverse calculations on VAT has been enabled.
• S and E grades are included on the GPA calculator.

### 1.2.15 — 2025-10-14

v1.2.0
• Pace Calculator has been added.
• Age Calculator has been added.
• Other minor bugs have been resolved.

v1.1.0
• Dark mode theme is available.
• Sound, haptic feedback has been added.
• Reverse calculations on VAT has been enabled.
• S and E grades are included on the GPA calculator.

### 1.2.14 — 2025-09-30

v1.2.0
• Pace Calculator has been added.
• Age Calculator has been added.
• Other minor bugs have been resolved.

v1.1.0
• Dark mode theme is available.
• Sound, haptic feedback has been added.
• Reverse calculations on VAT has been enabled.
• S and E grades are included on the GPA calculator.

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## More apps by Realbyte Inc.

- [Money Manager Expense & Budget](https://appshunter.io/ios/app/money-manager-expense-and-budget/id560481810)
- [Money Manager (Remove Ads)](https://appshunter.io/ios/app/money-manager-remove-ads/id564730202)

All apps by Realbyte Inc.: https://appshunter.io/developer/560481813

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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 2026-08-27.*