# XLII — Explore Numbers & Numerals

> Explore Numbers & Numerals (iPhone/iPad app by telethon k.k..)

- Source: https://appshunter.io/ios/app/xlii/id1611293280 (this page in markdown: same URL + `.md`)
- Developer: [telethon k.k.](https://appshunter.io/developer/699508003)
- Category: Utilities, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 17.6 · 5 MB
- Languages: American English, German (Germany), Japanese
- Released: 2022-03-02
- Data updated: 2026-08-16
- User reviews in markdown: https://appshunter.io/ios/app/xlii/id1611293280/reviews.md

## What is XLII?

XLII - Explore Numbers and Numerals help you learn about, discover, and explore number and numerals from around the world, ranging from familiar Roman numerals to the ancient Kharoṣṭhī script. You even can use your camera to scan numbers and convert them to an interesting output format. 

To achieve full immersion, use the XLII Clock widget to display the current date and time in a number format of your choosing directly in your Home Screen. 

XLII - Explore Numbers and Numerals supports:
- Arabic numerals (naturally)
- Roman numerals
- Japanese numerals (including financial notation)
- Babylonian Cuneiform numerals (base 60)
- Aegean numerals (Linear B script)
- Chinese counting rods (籌)
- Egyptian Hieroglyphs
- Suzhou numbers (蘇州碼子)
- Phoenician numbers
- Kharoṣṭhī numerals
- Brahmi numerals
- Glagolitic numerals
- Cyrillic numerals
- Ge'ez numbers
- Sundanese numbers
- Tibetan numbers
- Mongolian numbers
- hexadecimal, binary, octal, vigesimal, etc.
- spell-out notation for many languages

Most formats are also accepted as input, e.g. you can convert from Roman to Cyrillic, from Ge'ez to binary, or from Japanese to Babylonian. Some (ancient) formats don't support large numbers.


## Version history (last 5 releases)

### 1.0.8 — 2025-09-15

- iOS26 compatibility

### 1.0.6 — 2024-09-23

- iOS18 compatibility

### 1.0.4 — 2023-09-20

- iOS 17 compatibility

### 1.0.3 — 2022-09-10

- iOS16 compatibility

### 1.0.2 — 2022-03-17

improved the handling of '0' for some scripts / numerals

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| [Roman Numerals +](https://appshunter.io/ios/app/roman-numerals-plus/id6743372702) | — | Free | Utilities |
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## More apps by telethon k.k.

- [MySequence](https://appshunter.io/ios/app/mysequence/id699508000)
- [MyGels](https://appshunter.io/ios/app/mygels/id891708953)
- [Simple Furigana](https://appshunter.io/ios/app/simple-furigana/id924351286)
- [かけるかな？](https://appshunter.io/ios/app/id950138212)
- [Kanji Lookup](https://appshunter.io/ios/app/kanji-lookup/id973780102)
- [Let's Write Kanji!](https://appshunter.io/ios/app/lets-write-kanji/id983099156)

All apps by telethon k.k.: https://appshunter.io/developer/699508003

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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 2026-08-16.*