# ZeSI mobile vs Sealva

The clearest difference is update cadence: Sealva at every 3 weeks against ZeSI mobile's every 3 months. ZeSI mobile's advantage is iOS requirement (16.6 vs 18.6). 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.

ZeSI mobile ships an update every 3 months, Sealva every 3 weeks. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ZeSI mobile | Sealva |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 51 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Bundesdruckerei GmbH](https://appshunter.io/developer/1476407827) | [Tobias Senger](https://appshunter.io/developer/1863099003) |

## What reviewers say

### ZeSI mobile

[App page](https://appshunter.io/ios/app/zesi-mobile/id6470002077)

Verify German administrative documents using Visual Digital Seals (VDS). Scan the seal on your document and compare the app's verification results with the original data. Ensures the authenticity of official and non-official documents.

**Highlights:** Verify administrative documents, Scan Visual Digital Seals (VDS), Check against BSI TR-03171, Check against BSI TR-03137-1, Compare verification results

**In-app purchases:** none


### Sealva

[App page](https://appshunter.io/ios/app/sealva-vds-validator/id6756822727)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ZeSI mobile free?

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

### Is Sealva free?

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

### Do ZeSI mobile or Sealva have ads?

Neither ZeSI mobile nor Sealva shows ads.

### Which is updated more often, ZeSI mobile or Sealva?

ZeSI mobile ships an update every 3 months, and Sealva every 3 weeks. Most recently, ZeSI mobile was updated on November 3, 2026 and Sealva on November 5, 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.*