# IOL 2025 — IOL

> IOL (iPhone/iPad app by CHIH HAN LIN.)

- Source: https://appshunter.io/ios/app/iol-2025/id6748054270 (this page in markdown: same URL + `.md`)
- Developer: [CHIH HAN LIN](https://appshunter.io/developer/1824113604)
- Category: Education, Utilities
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 43 MB
- Languages: American English
- Released: 2025-07-13
- Data updated: 2026-08-05
- User reviews in markdown: https://appshunter.io/ios/app/iol-2025/id6748054270/reviews.md

## What is IOL 2025?

The International Linguistics Olympiad (IOL) is one of the twelve international science Olympiads designed for high school students. Established in 2003, the IOL challenges students to apply logical thinking, problem-solving, and creativity to decode linguistic puzzles from various languages around the world. Unlike many other competitions, no prior knowledge of specific languages or linguistics is required. Instead, students analyze unfamiliar linguistic structures, including syntax, phonology, semantics, and writing systems, relying on their ability to recognize patterns and solve complex problems.


## Version history (last 4 releases)

### 4.0 — 2025-07-22

update iOS UI button

### 3.0 — 2025-07-18

final version - updated landing page and chatbot input keyboard

### 2.0 — 2025-07-17

Updated the UI of chatbot, and updated other bug

### 1.0 — 2025-07-13

No release notes.

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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 2026-08-05.*