# Organic Nomenclature 2026 — Offline naming and structure

> Offline naming and structure (iPhone/iPad app by Nanjing Yunxiaochuang Technology Co., Ltd.)

- Source: https://appshunter.io/ios/app/organic-nomenclature-2026/id6780280518 (this page in markdown: same URL + `.md`)
- Developer: [Nanjing Yunxiaochuang Technology Co., Ltd](https://appshunter.io/developer/1454457703)
- Category: Education
- Price: $0.29 (on sale, was $0.39)
- Age rating: 4+
- Requires: iOS 15.6 · 5 MB
- Languages: Russian, German (Germany), Japanese, French (France), Chinese (Simplified, China), American English, European Portuguese, European Spanish, Korean
- Released: 2026-06-17
- Data updated: 2026-08-23
- User reviews in markdown: https://appshunter.io/ios/app/organic-nomenclature-2026/id6780280518/reviews.md

## What is Organic Nomenclature 2026?

Organic Nomenclature Practice is a fully offline study tool for students preparing for high school chemistry competitions, introductory college organic chemistry, pharmacy, and chemistry-related courses.

The app is designed around common learning problems: many functional groups, confusing naming rules, and a lack of systematic practice converting between structures and names. No login or internet connection is required. All practice records, mistakes, and progress are stored locally on your device.

Key features:
1. Functional group and nomenclature reference: covers common categories including alkanes, alkenes, alkynes, alcohols, aldehydes, ketones, carboxylic acids, esters, and amines.
2. Name recognition practice: choose the correct structural features from a name and train main chain, numbering, and substituent order judgment.
3. Structure naming practice: work step by step through parent chains, functional groups, substituents, and numbering.
4. Mistake review: automatically records missed questions for review by question type and functional group.
5. Study statistics: track accuracy, practice streaks, weak functional groups, and history.

Useful for repeated practice, exam review, and offline self-study.


## Version history (last 2 releases)

### 1.1 — 2026-08-04

Added a feedback feature.

### 1.0 — 2026-06-17

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 2026-08-23.*