# 笛子教练 vs 洞洞谱

The clearest difference is update cadence: 洞洞谱 at weekly against 笛子教练's every 31 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 笛子教练 sells 2 one-off in-app purchases and 洞洞谱 sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

笛子教练 ships an update every 31 months, 洞洞谱 weekly. The most recent releases landed on October 9, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 笛子教练 | 洞洞谱 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/id1505941191/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Weekly** |
| Size | 78 MB | 42 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEET Studio CO.,LTD.](https://appshunter.io/developer/346749745) | [wenlin Huang](https://appshunter.io/developer/1108308410) |

## What reviewers say

### 笛子教练

[App page](https://appshunter.io/ios/app/id1505941191)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 60约豆 | $0.99 | one-time |
| 月会员 | $12.99 | one-time |


### 洞洞谱

[App page](https://appshunter.io/ios/app/id6741378672)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $4.99 | per month |
| 季度会员 | $7.99 | per 3 months |
| 年度会员 | $14.99 | per year |


## Frequently asked questions

### Is 笛子教练 free?

笛子教练 is free to download, with in-app purchases available.

### Is 洞洞谱 free?

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

### Do 笛子教练 or 洞洞谱 have ads?

Neither 笛子教练 nor 洞洞谱 shows ads.

### Which is updated more often, 笛子教练 or 洞洞谱?

笛子教练 ships an update every 31 months, and 洞洞谱 weekly. Most recently, 笛子教练 was updated on October 9, 2026 and 洞洞谱 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.*