# 纸背单词 vs OlympusX

The clearest difference is update cadence: 纸背单词 at every 8 days against OlympusX's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 纸背单词 sells 4 in-app purchases, starting at $0.99 per month and OlympusX sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

纸背单词 ships an update every 8 days, OlympusX every 4 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | 纸背单词 | OlympusX |
| --- | --- | --- |
| 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** | Every 4 weeks |
| Size | 320 MB | 206 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [家毅 狄](https://appshunter.io/developer/1817304592) | [Guangdong Wuwo Digital Technology Co., Ltd.](https://appshunter.io/developer/1746012370) |

## 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 |


### OlympusX

[App page](https://appshunter.io/ios/app/olympusx/id6753127918)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OS币 | $0.99 | one-time |
| OS币 | $4.99 | one-time |
| OS币 | $9.99 | one-time |
| OS币 | $19.99 | one-time |
| OS币 | $39.99 | one-time |
| OS币 | $89.99 | one-time |


## Frequently asked questions

### Is 纸背单词 free?

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

### Is OlympusX free?

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

### Do 纸背单词 or OlympusX have ads?

Neither 纸背单词 nor OlympusX shows ads.

### Which is updated more often, 纸背单词 or OlympusX?

纸背单词 ships an update every 8 days, and OlympusX every 4 weeks. Most recently, 纸背单词 was updated on October 30, 2026 and OlympusX 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.*