# CoreUnit — Simple Unit & Date Converter

> Simple Unit & Date Converter (iPhone/iPad app by Younghan Kim.)

- Source: https://appshunter.io/ios/app/coreunit/id6759229546 (this page in markdown: same URL + `.md`)
- Developer: [Younghan Kim](https://appshunter.io/developer/1859100256)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 16.0 · 5 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China)
- Released: 2026-02-27
- Data updated: 2026-08-13
- User reviews in markdown: https://appshunter.io/ios/app/coreunit/id6759229546/reviews.md

## What is CoreUnit?

CoreUnit is a simple yet powerful utility designed for your daily life. Convert everything from basic units to complex date calculations in one clean, intuitive interface. No more searching for different calculators – CoreUnit has the core essentials you need.

Key Features:
- Unit Conversion: Easily convert Length, Speed, Weight, Volume, and Area.
- Date Converter: Seamlessly switch between Solar and Lunar calendars.
- Date Calculator: Calculate D-Days and add/subtract days from any specific date.
- Modern Interface: A clean, ad-supported free service with a focus on user experience.


## Version history (last 2 releases)

### 1.1 — 2026-03-18

What’s New: Enhanced Conversion Accuracy
- Volume Units Update: Added support for Barrels (US bbl), the industry standard. We've also updated Gallon and Barrel labels to specify US standards (US gal, US bbl) for clearer precision.
- Speed Units Update: Introducing Mach (Ma) speed conversion, perfect for aviation and aerospace enthusiasts.

### 1.0 — 2026-02-27

No release notes.

## More apps by Younghan Kim

- [PiMemory](https://appshunter.io/ios/app/pimemory/id6756199880)
- [DailyMath Quiz](https://appshunter.io/ios/app/dailymath-quiz/id6756844133)
- [SmartCalc Easy](https://appshunter.io/ios/app/smartcalc-easy/id6757077422)
- [SlidePick](https://appshunter.io/ios/app/slidepick/id6759160175)
- [TimeMerge](https://appshunter.io/ios/app/timemerge/id6759229277)

All apps by Younghan Kim: https://appshunter.io/developer/1859100256

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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 2026-08-13.*