# SmartStamp ArtID vs GPGuard

The clearest difference is update cadence: SmartStamp ArtID at every 3 weeks against GPGuard's every 2 months. 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.

SmartStamp ArtID ships an update every 3 weeks, GPGuard every 2 months. The most recent releases landed on July 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | SmartStamp ArtID | GPGuard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smartstamp-artid/id1670131767/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 127 MB | 77 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SmartStamp AG](https://appshunter.io/developer/1867233631) | [DynamicElement AG](https://appshunter.io/developer/1634593604) |

## What reviewers say

### SmartStamp ArtID

[App page](https://appshunter.io/ios/app/smartstamp-artid/id1670131767)

Securely authenticate and manage your art collection with AI-powered scanning and digital certificates of authenticity. Track provenance, create labels, and maintain a paperless archive to protect your art's value and identity.

**Highlights:** AI-powered artwork authentication, Digital Certificates of Authenticity, Exhibition label and price list creation, Secure paperless collection archive, Provenance and ownership tracking

**Features:** Vision Pro support

**In-app purchases:** none


### GPGuard

[App page](https://appshunter.io/ios/app/gpguard/id6449737652)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartStamp ArtID free?

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

### Is GPGuard free?

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

### Do SmartStamp ArtID or GPGuard have ads?

Neither SmartStamp ArtID nor GPGuard shows ads.

### Which is updated more often, SmartStamp ArtID or GPGuard?

SmartStamp ArtID ships an update every 3 weeks, and GPGuard every 2 months. Most recently, SmartStamp ArtID was updated on July 26, 2026 and GPGuard on September 17, 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.*