# 垃圾信息过滤 vs PureDose

The clearest difference is in-app purchases: 垃圾信息过滤 at none against PureDose's 1. 垃圾信息过滤 also leads on iOS requirement (13.0 vs 18.5). PureDose's advantage is update cadence (every 2 weeks vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. PureDose sells 1 one-off in-app purchase. 垃圾信息过滤 asks for nothing beyond the download.

垃圾信息过滤 ships an update every 6 months, PureDose every 2 weeks. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 垃圾信息过滤 | PureDose |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Size | 3 MB | 8 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [鑫 刘](https://appshunter.io/developer/722687321) | [春建 王](https://appshunter.io/developer/1893808279) |

## What reviewers say

### 垃圾信息过滤

[App page](https://appshunter.io/ios/app/id1370718482)

**Features:** macOS Compatibility

**In-app purchases:** none


### PureDose

[App page](https://appshunter.io/ios/app/puredose/id6790829334)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buyout Unlock | $4.99 | one-time |


## Frequently asked questions

### Is 垃圾信息过滤 free?

垃圾信息过滤 is free to download, with no in-app purchases.

### Is PureDose free?

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

### Do 垃圾信息过滤 or PureDose have ads?

Neither 垃圾信息过滤 nor PureDose shows ads.

### Which is updated more often, 垃圾信息过滤 or PureDose?

垃圾信息过滤 ships an update every 6 months, and PureDose every 2 weeks. Most recently, 垃圾信息过滤 was updated on November 2, 2026 and PureDose on November 6, 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.*