# TF_12 vs 竹笛调音器

The clearest difference is in-app purchases: TF_12 at none against 竹笛调音器's 1. TF_12 also leads on iOS requirement (9.0 vs 13.0). 竹笛调音器's advantage is update cadence (every 2 months vs every 16 months). On price, ads and device support there is nothing between them.

Both are free to download. 竹笛调音器 sells 1 one-off in-app purchase. TF_12 asks for nothing beyond the download.

TF_12 ships an update every 16 months, 竹笛调音器 every 2 months. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | TF_12 | 竹笛调音器 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6504571160/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Size | 13 MB | 40 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [浩明 甄](https://appshunter.io/developer/6779027894) | [鑫磊 张](https://appshunter.io/developer/1051215758) |

## What reviewers say

### TF_12

[App page](https://appshunter.io/ios/app/tf-12/id1638569809)

**Features:** macOS Compatibility

**In-app purchases:** none


### 竹笛调音器

[App page](https://appshunter.io/ios/app/id6504571160)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 竹笛调音器VIP | $5.99 | one-time |


## Frequently asked questions

### Is TF_12 free?

TF_12 is free to download, with no in-app purchases.

### Is 竹笛调音器 free?

竹笛调音器 is free to download, with in-app purchases available.

### Do TF_12 or 竹笛调音器 have ads?

Neither TF_12 nor 竹笛调音器 shows ads.

### Which is updated more often, TF_12 or 竹笛调音器?

TF_12 ships an update every 16 months, and 竹笛调音器 every 2 months. Most recently, TF_12 was updated on October 27, 2026 and 竹笛调音器 on October 30, 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.*