# AH Study vs Lazidi

The clearest difference is in-app purchases: AH Study at none against Lazidi's 2. AH Study also leads on iOS requirement (13.0 vs 18.0). Lazidi's advantage is update cadence (every 3 weeks vs every 5 months). On price, ads and device support there is nothing between them.

Both are free to download. Lazidi sells 2 one-off in-app purchases. AH Study asks for nothing beyond the download.

AH Study ships an update every 5 months, Lazidi every 3 weeks. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | AH Study | Lazidi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/lazidi/id6808170393/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 26 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Quynh Ta Dang](https://appshunter.io/developer/1677930763) | [Pham Hung](https://appshunter.io/developer/6785816296) |

## What reviewers say

### AH Study

[App page](https://appshunter.io/ios/app/ah-study/id6474718633)

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

**In-app purchases:** none


### Lazidi

[App page](https://appshunter.io/ios/app/lazidi/id6808170393)

This app offers illustrated vocabulary flashcards for Vietnamese speakers learning English and Chinese, along with a Vietnamese vocabulary builder. It provides offline access to extensive word banks, pronunciation guides, and etymology for Chinese characters. Users can track progress and unlock achievements.

**Highlights:** Illustrated vocabulary flashcards, IPA and Pinyin pronunciation with audio, Vietnamese etymology for Chinese characters, Extensive word banks for English, Chinese, and Vietnamese, Offline access, no account or internet needed, Progress tracking and achievements, Home screen and lock screen widgets

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tiếng Anh trọn bộ | $4.99 | one-time |
| Tiếng Trung trọn bộ | $4.99 | one-time |


## Frequently asked questions

### Is AH Study free?

AH Study is free to download, with no in-app purchases.

### Is Lazidi free?

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

### Do AH Study or Lazidi have ads?

Neither AH Study nor Lazidi shows ads.

### Which is updated more often, AH Study or Lazidi?

AH Study ships an update every 5 months, and Lazidi every 3 weeks. Most recently, AH Study was updated on October 2, 2026 and Lazidi on October 16, 2026.

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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.*