# ZeSI mobile vs WristSpeed Pro

The clearest difference is update cadence: WristSpeed Pro at weekly against ZeSI mobile's every 3 months. WristSpeed Pro also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.6). On price, ads and in-app purchases 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, WristSpeed Pro weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | ZeSI mobile | WristSpeed Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 5 MB | 1 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Bundesdruckerei GmbH](https://appshunter.io/developer/1476407827) | [CAN HASAN KIRCALI](https://appshunter.io/developer/1847090242) |

## 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


### WristSpeed Pro

[App page](https://appshunter.io/ios/app/wristspeed-pro/id6756218498)

**In-app purchases:** none


## Frequently asked questions

### Is ZeSI mobile free?

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

### Is WristSpeed Pro free?

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

### Do ZeSI mobile or WristSpeed Pro have ads?

Neither ZeSI mobile nor WristSpeed Pro shows ads.

### Which is updated more often, ZeSI mobile or WristSpeed Pro?

ZeSI mobile ships an update every 3 months, and WristSpeed Pro weekly. Most recently, ZeSI mobile was updated on November 3, 2026 and WristSpeed Pro on October 30, 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.*