# Common Tools & Calculations — Collection of Useful Features

> Collection of Useful Features (iPhone/iPad app by Shahul Hameed.)

- Source: https://appshunter.io/ios/app/common-tools-and-calculations/id6740821588 (this page in markdown: same URL + `.md`)
- Developer: [Shahul Hameed](https://appshunter.io/developer/1773338740)
- Category: Utilities, Education
- Price: Free
- Age rating: 17+
- Requires: iOS 14.5 · 6 MB
- Languages: English
- Released: 2025-01-24
- Data updated: 2026-07-31
- User reviews in markdown: https://appshunter.io/ios/app/common-tools-and-calculations/id6740821588/reviews.md

## What is Common Tools & Calculations?

Multiple Simple Utility Functions:

- String Functions: Uppercase, Lowercase, Reverse, Count, etc.
- Math Functions: Percentage, Average, Fraction, Simple Calculator.
- Date Functions: Timer, Stopwatch, Find Age, Calculate difference between 2 dates, Check if Leap Year.
- Unit Conversions: Simple conversions between units.
- Developer Tools: Simple XML and JSON Validation.


## Version history (last 4 releases)

### 1.3 — 2025-02-18

Bug fixes and Ads related enhancements

### 1.2 — 2025-01-30

Timer Notification, UI enhancements

### 1.1 — 2025-01-28

New features: Stopwatch, Timer

### 1.0 — 2025-01-24

No release notes.

## More apps by Shahul Hameed

- [Unit Converter: cm, kg, °C](https://appshunter.io/ios/app/unit-converter-cm-kg-c/id6736819582)
- [Business Calc: Profit & ROI](https://appshunter.io/ios/app/business-calc-profit-and-roi/id6736882446)
- [Multi-Calendar & Notes](https://appshunter.io/ios/app/multi-calendar-and-notes/id6736898911)
- [Bookmark Manager: Save Links](https://appshunter.io/ios/app/bookmark-manager-save-links/id6737063913)
- [Time Zone Converter World](https://appshunter.io/ios/app/time-zone-converter-world/id6741413467)

All apps by Shahul Hameed: https://appshunter.io/developer/1773338740

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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 2026-07-31.*