# Gus on the Go vs Bisyntax Builder

The clearest difference is review sentiment: Gus on the Go at 89% against Bisyntax Builder's 0%. Gus on the Go also leads on rating (4.2 vs 3.0) and ratings volume (9 vs 1). Bisyntax Builder's advantage is price (Free vs $3.99) and iOS requirement (11.0 vs 15.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Bisyntax Builder is free to download; Gus on the Go costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Gus on the Go holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: Gus on the Go has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 89% of Gus on the Go's written reviews are positive against 0% of Bisyntax Builder's.

Gus on the Go ships an update every 7 months, Bisyntax Builder every 4 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Gus on the Go | Bisyntax Builder |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.2 (9 ratings)](https://appshunter.io/ios/app/gus-on-the-go-cantonese/id555583948/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/bisyntax-builder/id1609890539/reviews) |
| Number of ratings | **9** | 1 |
| Positive reviews | **89.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 months** |
| Monetization | Paid | **Free** |
| Size | 44 MB | 587 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [toojuice](https://appshunter.io/developer/396747437) | [Kazoo Technology (Hong Kong) Limited](https://appshunter.io/developer/1256905363) |

## What reviewers say

### Gus on the Go

[App page](https://appshunter.io/ios/app/gus-on-the-go-cantonese/id555583948)

This app makes learning Cantonese fun for children with interactive lessons, engaging games, and adorable animations. It covers essential vocabulary across various categories, helping kids build a foundation in a new language through a multi-sensory experience.

**Highlights:** Nearly 90 Cantonese words, 10 educational activities, Native Cantonese audio, Interactive vocabulary games, Progress tracking with achievements, Multiple vocabulary categories

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Gus on the Go free?

Gus on the Go costs $3.99, with no in-app purchases.

### Is Bisyntax Builder free?

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

### Which has better reviews, Gus on the Go or Bisyntax Builder?

Gus on the Go is rated higher. Gus on the Go averages 4.2 out of 5 from 9 ratings, while Bisyntax Builder averages 3.0 from 1 ratings.

### Do Gus on the Go or Bisyntax Builder have ads?

Neither Gus on the Go nor Bisyntax Builder shows ads.

### Which is updated more often, Gus on the Go or Bisyntax Builder?

Gus on the Go ships an update every 7 months, and Bisyntax Builder every 4 months. Most recently, Gus on the Go was updated on November 6, 2026 and Bisyntax Builder on November 3, 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.*