# 知无涯 vs 豚豚NoteCards

The clearest difference is in-app purchases: 豚豚NoteCards at none against 知无涯's 10. 知无涯's advantage is iOS requirement (11.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. 知无涯 sells 10 one-off in-app purchases. 豚豚NoteCards asks for nothing beyond the download.

## The numbers

| Metric | 知无涯 | 豚豚NoteCards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (4 ratings)](https://appshunter.io/ios/app/id1539625064/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 9.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 173 MB | 0 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Shenzhen Bainiu Technology Co., LTD.](https://appshunter.io/developer/1588017705) | [庆飞 赵](https://appshunter.io/developer/1401363398) |

## What reviewers say

### 知无涯

[App page](https://appshunter.io/ios/app/id1539625064)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50学习币 | $0.99 | one-time |
| 100学习币 | $1.99 | one-time |
| 一个月VIP | $1.99 | one-time |
| 250学习币 | $4.99 | one-time |
| 三个月VIP | $4.99 | one-time |
| 500学习币 | $7.99 | one-time |
| 1000学习币 | $13.99 | one-time |
| 半年VIP | $14.99 | one-time |
| 一年VIP | $17.99 | one-time |
| 2000学习币 | $25.99 | one-time |


### 豚豚NoteCards

[App page](https://appshunter.io/ios/app/notecards/id6504354418)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 知无涯 free?

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

### Is 豚豚NoteCards free?

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

### Do 知无涯 or 豚豚NoteCards have ads?

Neither 知无涯 nor 豚豚NoteCards shows ads.

---

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