# protostar vs 香港小學成語表

The clearest difference is in-app purchases: 香港小學成語表 at none against protostar's 1. 香港小學成語表 also leads on device support (3 vs 1). protostar's advantage is iOS requirement (10 vs 13.0). On price, update cadence and ads there is nothing between them.

Both are free to download. protostar sells 1 one-off in-app purchase. 香港小學成語表 asks for nothing beyond the download.

protostar ships an update every 3 weeks, 香港小學成語表 monthly. The most recent releases landed on October 4, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | protostar | 香港小學成語表 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/protostar/id1504821938/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 155 MB | 56 MB |
| Requires iOS | **10** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Longzhe Education Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1504821937) | [Secmenu Technology Limited](https://appshunter.io/developer/964395558) |

## What reviewers say

### protostar

[App page](https://appshunter.io/ios/app/protostar/id1504821938)

This educational app is designed for students aged 7-12, offering a platform for watching learning videos and playing interactive games. It is exclusively for users of the protostar education company and is available on iPad.

**Highlights:** Learning videos, Educational games, Preview content, Review content, Designed for ages 7-12

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Protostar English Course | $299.99 | one-time |


### 香港小學成語表

[App page](https://appshunter.io/ios/app/id6504259588)

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

**In-app purchases:** none


## Frequently asked questions

### Is protostar free?

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

### Is 香港小學成語表 free?

香港小學成語表 is free to download, with no in-app purchases.

### Do protostar or 香港小學成語表 have ads?

Both protostar and 香港小學成語表 show ads.

### Which is updated more often, protostar or 香港小學成語表?

protostar ships an update every 3 weeks, and 香港小學成語表 monthly. Most recently, protostar was updated on October 4, 2026 and 香港小學成語表 on October 11, 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.*