# 纸背单词 vs 多诺(Duonova)

纸背单词 and 多诺(Duonova) are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 纸背单词 sells 4 in-app purchases, starting at $0.99 per month and 多诺(Duonova) sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 纸背单词 | 多诺(Duonova) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6749792248/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | — |
| Size | 320 MB | 127 MB |
| Requires iOS | **15.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [家毅 狄](https://appshunter.io/developer/1817304592) | [化工 刘](https://appshunter.io/developer/629597146) |

## What reviewers say

### 纸背单词

[App page](https://appshunter.io/ios/app/id6749792248)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度订阅 | $0.99 | per month |
| 年度订阅 | $3.99 | per year |
| Paperball*60 | $0.99 | one-time |
| 纸背单词终身会员 | $7.99 | one-time |


### 多诺(Duonova)

[App page](https://appshunter.io/ios/app/duonova/id6775779653)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 会员月费 | $0.99 | per month |
| 会员年费 | $7.99 | per year |


## Frequently asked questions

### Is 纸背单词 free?

纸背单词 is free to download, with in-app purchases available.

### Is 多诺(Duonova) free?

多诺(Duonova) is free to download, with in-app purchases available.

### Do 纸背单词 or 多诺(Duonova) have ads?

Neither 纸背单词 nor 多诺(Duonova) shows ads.

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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.*