# DOSS link vs 钢琴和弦

The clearest difference is in-app purchases: DOSS link at none against 钢琴和弦's 1. DOSS link also leads on iOS requirement (6.1 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. 钢琴和弦 sells 1 in-app purchase, starting at $6.99 per year. DOSS link asks for nothing beyond the download.

## The numbers

| Metric | DOSS link | 钢琴和弦 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 58 MB | 53 MB |
| Requires iOS | **6.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wonders Technology Co.,Ltd](https://appshunter.io/developer/393352744) | [炯龙 吴](https://appshunter.io/developer/596409525) |

## What reviewers say

### DOSS link

[App page](https://appshunter.io/ios/app/doss-link/id1133454823)

**Features:** macOS Compatibility

**In-app purchases:** none


### 钢琴和弦

[App page](https://appshunter.io/ios/app/id6482989738)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 年度会员 | $6.99 | per year |


## Frequently asked questions

### Is DOSS link free?

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

### Is 钢琴和弦 free?

钢琴和弦 is free to download, with in-app purchases available.

### Do DOSS link or 钢琴和弦 have ads?

Neither DOSS link nor 钢琴和弦 shows ads.

---

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