# iOS vs IRS

> English confusable word pair

## The two words

### iOS
*name · frequency rank #5,888*
A mobile operating system (OS) created and developed by Apple Inc. exclusively for its hardware.

### IRS
*name · IPA /ˈaɪ.ɑɹ.ɛs/ · frequency rank #8,440*
Initialism of Internal Revenue Service.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/vs/ios-vs-irs