# RF 4DAT vs PicShield

The clearest difference is in-app purchases: PicShield at none against RF 4DAT's 1. PicShield also leads on update cadence (fortnightly vs every 3 months). RF 4DAT's advantage is ads (none vs shown) and iOS requirement (17.0 vs 26.0). On price and device support there is nothing between them.

Both are free to download. RF 4DAT sells 1 one-off in-app purchase. PicShield asks for nothing beyond the download.

RF 4DAT ships an update every 3 months, PicShield fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | RF 4DAT | PicShield |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 1 MB | 6 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [4DAT LLC](https://appshunter.io/developer/1649051364) | [冯泰 蔡](https://appshunter.io/developer/1896641064) |

## What reviewers say

### RF 4DAT

[App page](https://appshunter.io/ios/app/rf-4dat/id6757926768)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RF 4DAT Pro | $2.99 | one-time |


### PicShield

[App page](https://appshunter.io/ios/app/picshield-blur-and-watermark/id6792524094)

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

**In-app purchases:** none


## Frequently asked questions

### Is RF 4DAT free?

RF 4DAT is free to download, with in-app purchases available.

### Is PicShield free?

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

### Do RF 4DAT or PicShield have ads?

PicShield shows ads; RF 4DAT does not.

### Which is updated more often, RF 4DAT or PicShield?

RF 4DAT ships an update every 3 months, and PicShield fortnightly. Most recently, RF 4DAT was updated on October 31, 2026 and PicShield on October 31, 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.*