# Bisyntax Builder vs 數之寶島

Bisyntax Builder and 數之寶島 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Bisyntax Builder ships an update every 4 months, 數之寶島 every 6 months. Both last shipped on October 15, 2026.

## The numbers

| Metric | Bisyntax Builder | 數之寶島 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/bisyntax-builder/id1609890539/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Free | — |
| Size | 587 MB | 175 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kazoo Technology (Hong Kong) Limited](https://appshunter.io/developer/1256905363) | [The University of Hong Kong](https://appshunter.io/developer/451384643) |

## What reviewers say

### Bisyntax Builder

[App page](https://appshunter.io/ios/app/bisyntax-builder/id1609890539)

Learn Chinese and English syntactic skills through engaging, game-like lessons. Master sentence structure, tenses, and prepositions with hundreds of practice questions. Acquire basic grammar knowledge in a fun and interactive way.

**Highlights:** Parallel Chinese and English syntactic skill development, Game-like lessons for basic grammar, Focus on sentence structure and tenses, Hundreds of practice questions, Engaging and fun learning experience

**Features:** macOS Compatibility

**In-app purchases:** none


### 數之寶島

[App page](https://appshunter.io/ios/app/id6744041597)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Bisyntax Builder free?

Bisyntax Builder is free to download, with no in-app purchases.

### Is 數之寶島 free?

數之寶島 is free to download, with no in-app purchases.

### Do Bisyntax Builder or 數之寶島 have ads?

Neither Bisyntax Builder nor 數之寶島 shows ads.

### Which is updated more often, Bisyntax Builder or 數之寶島?

Bisyntax Builder ships an update every 4 months, and 數之寶島 every 6 months. Most recently, Bisyntax Builder was updated on October 15, 2026 and 數之寶島 on October 15, 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.*