# Pinyin Chart vs AR Odon 2

The clearest difference is rating: AR Odon 2 at 5.0 against Pinyin Chart's 3.0. AR Odon 2 also leads on in-app purchases (none vs 10) and iOS requirement (12.0 vs 17.0). Pinyin Chart's advantage is ratings volume (4 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Pinyin Chart sells 10 one-off in-app purchases. AR Odon 2 asks for nothing beyond the download.

AR Odon 2 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

## The numbers

| Metric | Pinyin Chart | AR Odon 2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (4 ratings)](https://appshunter.io/ios/app/pinyin-chart-learn-chinese/id407215045/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ar-odon-2/id6473810351/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 82.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 106 MB | 229 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OnDemandWorld (HK)](https://appshunter.io/developer/1195404946) | [University of Pacific](https://appshunter.io/developer/554213052) |

## What reviewers say

### Pinyin Chart

[App page](https://appshunter.io/ios/app/pinyin-chart-learn-chinese/id407215045)

This app helps you learn Mandarin pronunciation and vocabulary. It features an interactive sound chart with native speaker audio, pronunciation lessons, and a vocabulary list to build your Chinese language foundation.

**Highlights:** Interactive pinyin sound chart, Native speaker audio for pronunciation, Pronunciation lessons, Mandarin vocabulary list, Self-paced learning

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Dragons Theme | $0.99 | one-time |
| Dragon Boat Festival Theme | $0.99 | one-time |
| Halloween Theme | $0.99 | one-time |
| Mid-Autumn Theme | $0.99 | one-time |
| Panda Theme | $0.99 | one-time |
| Winter Solstic Theme | $0.99 | one-time |
| All Lessons | $4.99 | one-time |
| All Themes | $4.99 | one-time |
| VIP | $9.99 | one-time |

**What reviewers like**

- 👍 Simple and easy-to-use interface
- 🎯 Clear and accurate pronunciation audio
- 📊 Comprehensive pinyin chart with all combinations
- 💰 Free app with useful functionality
- 🎓 Excellent learning tool for Mandarin students

**What reviewers complain about**

- 🐛 Audio not working on some devices (iPhone/iPad)
- 📢 Intrusive and frequent advertisements
- 💸 Misleading in-app purchase options
- 🔧 Confusing premium version pricing ($9.99 vs $0.99)
- 📵 Ads block content on screen

**Reported bugs**

- Audio does not work on iPhone (works on iPad)
- App crashes frequently on iOS 4.2
- Nag screen freezes application making it unusable
- Restore purchase button not accessible/scrollable
- Some sounds don't work (e.g., 'ue' sound)

**Requested features**

- Male voice option in addition to female voice
- Instructions on how to properly form sounds
- Search functionality to find specific pinyin
- Ability to highlight and listen to entire rows/columns
- English meanings for words (e.g., ma = mom, horse, yell)


### AR Odon 2

[App page](https://appshunter.io/ios/app/ar-odon-2/id6473810351)

This educational app uses augmented reality to display 3D models of human teeth in your environment. It provides an immersive and engaging way to learn dental anatomy. Developed by the UOP Software Team, it's designed for accessible study.

**Highlights:** Augmented Reality projection, 3D dental models, Immersive learning experience, Interactive dental anatomy study, Accessible educational tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pinyin Chart free?

Pinyin Chart is free to download, with in-app purchases available.

### Is AR Odon 2 free?

AR Odon 2 is free to download, with no in-app purchases.

### Which has better reviews, Pinyin Chart or AR Odon 2?

AR Odon 2 is rated higher. Pinyin Chart averages 3.0 out of 5 from 4 ratings, while AR Odon 2 averages 5.0 from 1 ratings.

### Do Pinyin Chart or AR Odon 2 have ads?

Neither Pinyin Chart nor AR Odon 2 shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*