# Watch Calculator: Tip & Units — Scientific Math & Converter

> Simple Apple Watch calculator for basic, scientific, and tip calculations. (iPhone/iPad app by Hemal Modi.)

- Source: https://appshunter.io/ios/app/watch-calculator-tip-and-units/id1602218883 (this page in markdown: same URL + `.md`)
- Developer: [Hemal Modi](https://appshunter.io/developer/1522352514)
- Category: Utilities, Education
- Price: $0.99
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2021-12-28
- Data updated: 2026-10-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/watch-calculator-tip-and-units/id1602218883/reviews.md

## What is Watch Calculator?

Watch Calculator puts a tip calculator, everyday math and a unit converter on your Apple Watch. Large buttons, scientific functions like sin, cos and tan, and a converter for length, weight, temperature and volume that you control with the Digital Crown. No phone needed.

A simple, clear calculator with large buttons that makes calculations easy on your Apple Watch. Whether it's a quick tip, everyday math, or scientific functions like sin, cos, and tan, this app has you covered, no phone needed. Ask Siri to calculate a sum or convert units without opening the app.

## Key features

- Clear display
- Large buttons
- Basic calculations
- Scientific calculations
- Tip calculations
- Apple Watch optimized

## Is Watch Calculator safe?

Not enough ratings yet to assess Watch Calculator.

## Is Watch Calculator legit?

Watch Calculator: Tip & Units appears to be a legitimate app. The AppsHunter Legitimacy Score for Watch Calculator is 90 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/watch-calculator-tip-and-units/id1602218883/reviews.md

### 1/5 — I’m can’t use that on apple watch 3

*2024-06-09*

I’m can’t use that on apple watch 3,watch os 9 ver

**Developer response:** This issue has been fixed in latest release. please retry, hope you like our app.

## Frequently asked questions about Watch Calculator

### What devices does Calculator-Watch support?

Calculator-Watch is designed for Apple Watch and is also compatible with iPhone and iPod devices, allowing for calculations across your Apple ecosystem.

### How much does Calculator-Watch cost?

Calculator-Watch is a paid application, available for $0.99. This one-time purchase grants you access to all its calculation features.

### What types of calculations can Calculator-Watch perform?

Calculator-Watch supports basic mathematical operations, scientific calculations, and tip calculations, making it a versatile tool for everyday needs.

### Is Calculator-Watch suitable for children?

Yes, Calculator-Watch has an age rating of 4+, indicating it is appropriate for children and adults alike for basic utility functions.

### How often is Calculator-Watch updated?

The app was last updated on February 11, 2025, with version 2.1. This indicates ongoing development and support for the application.

### Does Calculator-Watch have ads?

No, Calculator-Watch does not contain advertisements. As a paid app, it offers an uninterrupted user experience.

### What makes Calculator-Watch easy to use on a watch?

Calculator-Watch features a clear display and large buttons, specifically optimized for the Apple Watch interface to ensure ease of use and accuracy.

## Version history (last 5 releases)

### 2.4.1 — 2026-10-14

New name: Watch Calculator: Tip & Units.
Refreshed App Store screenshots and description.
Built with Xcode 27.1.

### 2.4 — 2026-09-30

A brand-new app icon: meet the calculator owl.
Built with the latest watchOS SDK.

### 2.3 — 2026-09-28

New: a built-in Unit Converter for length, weight, temperature and volume, right next to your calculator — scrub the Digital Crown to set the value, and it remembers your last units.

New: ask Siri to calculate a quick sum ("Calculate 12 plus 8") or convert units, without opening the app.

Under the hood: rebuilt as a modern single watch app for this year's watchOS.

### 2.2 — 2026-09-15

New: a History page right next to the keypad.
Your last 20 calculations are saved, even after you quit.
Tap any result to drop it straight back into the calculator.
Clear the whole list any time with one tap.
Built with the latest watchOS SDK.

### 2.1 — 2025-02-11

Minor bug fixes.

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## More apps by Hemal Modi

- [TikTocToe: Tic Tac Toe](https://appshunter.io/ios/app/tiktoctoe-tic-tac-toe/id1522356749)
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- [Sketch My Wrist](https://appshunter.io/ios/app/sketch-my-wrist/id1526006500)
- [Truth or Dare: Watch Party](https://appshunter.io/ios/app/truth-or-dare-watch-party/id1527873405)
- [WatchCrypto](https://appshunter.io/ios/app/watchcrypto/id1544602049)
- [Hanuman Chalisa: Watch Audio](https://appshunter.io/ios/app/hanuman-chalisa-watch-audio/id1544650664)

All apps by Hemal Modi: https://appshunter.io/developer/1522352514

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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 2026-10-30.*