# Calculator Pro: Math On Watch — Smart & Scientific Calculator

> Smart and scientific calculator for Apple Watch and iPhone with history. (iPhone/iPad app by Vulcan Labs Company Limited.)

- Source: https://appshunter.io/ios/app/calculator-pro-math-on-watch/id1503448955 (this page in markdown: same URL + `.md`)
- Developer: [Vulcan Labs Company Limited](https://appshunter.io/developer/1263008826)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 69 MB
- Languages: American English
- Released: 2020-04-08
- Data updated: 2026-08-23
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/calculator-pro-math-on-watch/id1503448955/reviews.md

## What is Calculator Pro?

Do the math on your Apple Watch with the Calculator Pro. Support on iPhone & Apple Watch. 

WHY YOU’LL LOVE THE WATCH CALCULATOR
• Extended Apple Watch App: Basic & Complex Calculation with History records
• Basic & Scientific Calculator on iPhone
• History Tab
• Simple Design
• Edit Equation
• Support Dark Mode

GET FULL ACCESS & SOLVE EVERYDAY CALCULATIONS
Upgrade to a Premium Membership and receive the following ongoing value:
• Ad-Free
• Fraction Calculator
• Currency Converter
• Premium Customer Support

Premium Subscriptions:
• Purchased user has unlimited access to Calculator Pro:  Math On Watch
• User can subscribe lifetime (USD 9.99$).
• Free users can only use those services with limited quota per day.
• Payment will be charged to iTunes Account at confirmation of purchase.
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases to that publication, where applicable.

Contact Us: support@vulcanlabs.co
We would love to receive all your feedback to improve our app. 

Terms of Use: http://vulcanlabs.co/index.php/terms-of-use/

Privacy Policy: http://vulcanlabs.co/index.php/privacy-policy/

## Key features

- Basic & Complex Calculations
- History Records
- Edit Equation
- Dark Mode Support
- Currency Converter
- Fraction Calculator

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $4.49 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $49.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/calculator-pro-math-on-watch/id1503448955/reviews.md

### 5/5 — Excelente

*2021-03-09*

Muito bom o App ainda com a função do Histórico pois ajuda muito pois não sei o porque  a Apple ainda não colocou nas calculadoras nativas dos iPhones.

### 5/5 — I love this app.

*2020-11-05*

I love this app but how do you put it in scientific mode?

**Developer response:** Hi user, we've forwarded your feedback to our developers. Thank you for taking out the time to send us your suggestions! Your support and voice are very important to us :)

## Frequently asked questions about Calculator Pro

### Does Calculator Pro have ads?

Calculator Pro is ad-free for premium subscribers. Free users may experience limitations on certain services per day.

### What devices does Calculator Pro support?

Calculator Pro supports iPhone, iPod, and Apple Watch devices, allowing you to perform calculations seamlessly across your Apple ecosystem.

### How much does Calculator Pro cost?

Calculator Pro is free to download and use with limited daily access. A lifetime premium subscription is available for $9.99, offering unlimited access to all features.

### What are the premium subscription options for Calculator Pro?

Calculator Pro offers a Weekly Premium subscription for $1.99 with a 3-day free trial, and a Monthly Premium subscription for $4.49 with a 3-day free trial.

### Can I edit my past calculations in Calculator Pro?

Yes, Calculator Pro allows you to edit your past equations directly from the History tab, providing flexibility and convenience for your calculations.

### What advanced features are available with a premium membership?

A premium membership unlocks an ad-free experience, a fraction calculator, a currency converter, and premium customer support for enhanced functionality.

### How often is Calculator Pro updated?

The latest version of Calculator Pro is 1.5, and it was last updated on July 9, 2020. Updates typically bring improvements and new features.

### What is the age rating for Calculator Pro?

Calculator Pro has an age rating of 4+, making it suitable for a wide range of users who need a reliable calculator application.

## Version history (last 5 releases)

### 1.5 — 2020-07-09

Minor bug fixes

### 1.4 — 2020-06-03

Minor bug fixes

### 1.3 — 2020-05-23

Minor bug fixes

### 1.2 — 2020-05-04

- Fix bugs

### 1.1 — 2020-04-10

- Fix bugs

## Apps similar to Calculator Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [iCalc - Multi-Func Calculator](https://appshunter.io/ios/app/icalc-multi-func-calculator/id6451410713) | 4.6 (38) | Free | Utilities |
| [Calculi: Scientific Calculator](https://appshunter.io/ios/app/calculi-scientific-calculator/id452182503) | 4.4 (374) | Free | Utilities |
| [Plusly Calculator](https://appshunter.io/ios/app/plusly-calculator/id1576071621) | 5.0 (1) | Free | Utilities |
| [Photo Math Solver: iWatch Math](https://appshunter.io/ios/app/photo-math-solver-iwatch-math/id6670729217) | 4.7 (20) | Free | Utilities |
| [Calculator Express with Notes](https://appshunter.io/ios/app/calculator-express-with-notes/id1604079825) | 4.4 (43) | Free | Utilities |
| [GraphCalcPro2Go](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099) | 4.6 (40) | Free | Utilities |

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All apps by Vulcan Labs Company Limited: https://appshunter.io/developer/1263008826

## Related topics

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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 2026-08-23.*