# Alby Wall vs 竹知了

The clearest difference is price: Alby Wall at Free against 竹知了's $0.99. Alby Wall also leads on update cadence (every 2 days vs every 4 days). 竹知了's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Alby Wall is free to download; 竹知了 costs $0.99 up front. Alby Wall sells 1 one-off in-app purchase. 竹知了 asks for nothing beyond the download.

Alby Wall ships an update every 2 days, 竹知了 every 4 days. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Alby Wall | 竹知了 |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Monetization | — | Paid |
| Size | 15 MB | 14 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [鹏凯 廖](https://appshunter.io/developer/6794358986) | [士浩 王](https://appshunter.io/developer/1659573666) |

## What reviewers say

### Alby Wall

[App page](https://appshunter.io/ios/app/alby-wall/id6795154517)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Alby Wall Pro | $4.99 | one-time |


### 竹知了

[App page](https://appshunter.io/ios/app/sai/id6797256977)

Experience the traditional Chinese "whistle bug" toy on your iPhone or iPad. Mimic the real toy's sound and motion by drawing circles on the screen, with faster spins producing louder sounds. Enjoy a pure, offline experience with no ads or in-app purchases.

**Highlights:** Realistic physics simulation, Authentic recorded sounds, Multiple control methods, Offline play, No ads or in-app purchases, Local data saving

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

**In-app purchases:** none


## Frequently asked questions

### Is Alby Wall free?

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

### Is 竹知了 free?

竹知了 costs $0.99, with no in-app purchases.

### Do Alby Wall or 竹知了 have ads?

Neither Alby Wall nor 竹知了 shows ads.

### Which is updated more often, Alby Wall or 竹知了?

Alby Wall ships an update every 2 days, and 竹知了 every 4 days. Most recently, Alby Wall was updated on October 5, 2026 and 竹知了 on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*