# Delta单词 vs 橡皮错题

The clearest difference is update cadence: Delta单词 at daily against 橡皮错题's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Delta单词 ships an update daily, 橡皮错题 every 10 days. The most recent releases landed on October 30, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Delta单词 | 橡皮错题 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 10 days |
| Size | 180 MB | 3 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [田丰 何](https://appshunter.io/developer/1674464316) | [仕琦 牛](https://appshunter.io/developer/1825984616) |

## What reviewers say

### Delta单词

[App page](https://appshunter.io/ios/app/delta/id6744654342)

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

**In-app purchases:** none


### 橡皮错题

[App page](https://appshunter.io/ios/app/id6748517813)

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

**In-app purchases:** none


## Frequently asked questions

### Is Delta单词 free?

Delta单词 is free to download, with no in-app purchases.

### Is 橡皮错题 free?

橡皮错题 is free to download, with no in-app purchases.

### Do Delta单词 or 橡皮错题 have ads?

Neither Delta单词 nor 橡皮错题 shows ads.

### Which is updated more often, Delta单词 or 橡皮错题?

Delta单词 ships an update daily, and 橡皮错题 every 10 days. Most recently, Delta单词 was updated on October 30, 2026 and 橡皮错题 on November 8, 2026.

---

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