# NDSR660A vs AI英语阅读助手

The clearest difference is in-app purchases: NDSR660A at none against AI英语阅读助手's 3. NDSR660A also leads on iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. AI英语阅读助手 sells 3 in-app purchases, starting at $0.99 per month. NDSR660A asks for nothing beyond the download.

## The numbers

| Metric | NDSR660A | AI英语阅读助手 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 3 MB | 19 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Aidan Blessindo Electronic Co.,Ltd.](https://appshunter.io/developer/1413008258) | [杭州引力网络技术有限公司](https://appshunter.io/developer/1133518651) |

## What reviewers say

### NDSR660A

[App page](https://appshunter.io/ios/app/ndsr660a/id1623505586)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI英语阅读助手

[App page](https://appshunter.io/ios/app/ai/id6474818300)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度VIP | $0.99 | per month |
| 年度VIP | $14.99 | per year |
| 永久VIP | $19.99 | one-time |


## Frequently asked questions

### Is NDSR660A free?

NDSR660A is free to download, with no in-app purchases.

### Is AI英语阅读助手 free?

AI英语阅读助手 is free to download, with in-app purchases available.

### Do NDSR660A or AI英语阅读助手 have ads?

Neither NDSR660A nor AI英语阅读助手 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.*