# 王羲之十七帖 vs PolyEcho

The clearest difference is price: PolyEcho at Free against 王羲之十七帖's $0.99. PolyEcho also leads on update cadence (every 5 days vs every 6 months). 王羲之十七帖's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

PolyEcho is free to download; 王羲之十七帖 costs $0.99 up front. PolyEcho sells 4 in-app purchases, starting at $12.99 per month. 王羲之十七帖 asks for nothing beyond the download.

王羲之十七帖 ships an update every 6 months, PolyEcho every 5 days. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 王羲之十七帖 | PolyEcho |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 days** |
| Size | 75 MB | 207 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [小龙 高](https://appshunter.io/developer/425705314) | [楷博 尚](https://appshunter.io/developer/1801785390) |

## What reviewers say

### 王羲之十七帖

[App page](https://appshunter.io/ios/app/id1461458889)

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

**In-app purchases:** none


### PolyEcho

[App page](https://appshunter.io/ios/app/polyecho/id6743313316)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $12.99 | per month |
| Semi-Annual Subscription | $59.99 | per 6 months |
| Annual Subscription | $99.99 | per year |
| 5-Time Conversation Credit | $2.99 | one-time |


## Frequently asked questions

### Is 王羲之十七帖 free?

王羲之十七帖 costs $0.99, with no in-app purchases.

### Is PolyEcho free?

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

### Do 王羲之十七帖 or PolyEcho have ads?

Neither 王羲之十七帖 nor PolyEcho shows ads.

### Which is updated more often, 王羲之十七帖 or PolyEcho?

王羲之十七帖 ships an update every 6 months, and PolyEcho every 5 days. Most recently, 王羲之十七帖 was updated on October 13, 2026 and PolyEcho on October 16, 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.*