# e+正方形和長方形 vs 香港百年變變變

The clearest difference is update cadence: e+正方形和長方形 at every 15 months against 香港百年變變變's every 47 months. 香港百年變變變's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

e+正方形和長方形 ships an update every 15 months, 香港百年變變變 every 47 months. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | e+正方形和長方形 | 香港百年變變變 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 15 months** | Every 47 months |
| Size | 25 MB | 165 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) | [Sun Ya Publications (HK) Ltd](https://appshunter.io/developer/1129601703) |

## What reviewers say

### e+正方形和長方形

[App page](https://appshunter.io/ios/app/e-plus/id1112068166)

**Features:** macOS Compatibility

**In-app purchases:** none


### 香港百年變變變

[App page](https://appshunter.io/ios/app/id1137929973)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is e+正方形和長方形 free?

e+正方形和長方形 is free to download, with no in-app purchases.

### Is 香港百年變變變 free?

香港百年變變變 is free to download, with no in-app purchases.

### Do e+正方形和長方形 or 香港百年變變變 have ads?

Neither e+正方形和長方形 nor 香港百年變變變 shows ads.

### Which is updated more often, e+正方形和長方形 or 香港百年變變變?

e+正方形和長方形 ships an update every 15 months, and 香港百年變變變 every 47 months. Most recently, e+正方形和長方形 was updated on October 4, 2026 and 香港百年變變變 on October 20, 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.*