# 橡皮擦 vs 密钥动态验证

橡皮擦 and 密钥动态验证 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 橡皮擦 | 密钥动态验证 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Size | 19 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [高辉 张](https://appshunter.io/developer/1824381468) | [自孟 向](https://appshunter.io/developer/1679268980) |

## What reviewers say

### 橡皮擦

[App page](https://appshunter.io/ios/app/ai/id6761612446)

**In-app purchases:** none


### 密钥动态验证

[App page](https://appshunter.io/ios/app/id6803056715)

**In-app purchases:** none


## Frequently asked questions

### Is 橡皮擦 free?

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

### Is 密钥动态验证 free?

密钥动态验证 is free to download, with no in-app purchases.

### Do 橡皮擦 or 密钥动态验证 have ads?

Neither 橡皮擦 nor 密钥动态验证 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.*