# ZeSI mobile vs aTrackr

The clearest difference is update cadence: aTrackr at every 3 weeks against ZeSI mobile's every 3 months. ZeSI mobile's advantage is review sentiment (100% vs 89%) and iOS requirement (16.6 vs 26.2). On price, ads, in-app purchases and monetization model 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, aTrackr every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ZeSI mobile | aTrackr |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 88.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 5 MB | 4 MB |
| Requires iOS | **16.6** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Bundesdruckerei GmbH](https://appshunter.io/developer/1476407827) | [ROBERT HAMMER](https://appshunter.io/developer/1892414204) |

## 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


### aTrackr

[App page](https://appshunter.io/ios/app/atrackr/id6762006166)

This app helps you track all your monthly expenses from subscriptions like streaming services and cloud storage. It provides a clear overview of upcoming payments, spending by category, and allows for custom organization. Get notified before charges and manage your subscriptions efficiently.

**Highlights:** Track all subscriptions, View upcoming payments, Organize by category, Set custom reminders, Analyze spending statistics, Home screen widget, iCloud sync

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ZeSI mobile free?

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

### Is aTrackr free?

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

### Do ZeSI mobile or aTrackr have ads?

Neither ZeSI mobile nor aTrackr shows ads.

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

ZeSI mobile ships an update every 3 months, and aTrackr every 3 weeks. Most recently, ZeSI mobile was updated on November 3, 2026 and aTrackr on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*