# Bayer CropScience Seal Scan vs ProttoBau

The clearest difference is update cadence: ProttoBau at fortnightly against Bayer CropScience Seal Scan's every 3 months. Bayer CropScience Seal Scan's advantage is iOS requirement (11.0 vs 15.6). 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.

Bayer CropScience Seal Scan ships an update every 3 months, ProttoBau fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Bayer CropScience Seal Scan | ProttoBau |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 44 MB | 41 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bayer Group](https://appshunter.io/developer/480186736) | [VCA Virtual Catalogue Applications UG (haftungsbeschrankt)](https://appshunter.io/developer/1874340208) |

## What reviewers say

### Bayer CropScience Seal Scan

[App page](https://appshunter.io/ios/app/bayer-cropscience-seal-scan/id1073106068)

This utility helps farmers quickly verify the authenticity of Bayer Crop Science products by scanning QR codes on safety seals. It provides an immediate response on product originality and alerts users if a seal on bottled products appears to have been tampered with.

**Highlights:** Scan QR codes on safety seals, Verify product authenticity, Check CP products and Seeds, Detect opened bottled products, Immediate response on originality

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

**In-app purchases:** none


### ProttoBau

[App page](https://appshunter.io/ios/app/prottobau/id6758674128)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bayer CropScience Seal Scan free?

Bayer CropScience Seal Scan is free to download, with no in-app purchases.

### Is ProttoBau free?

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

### Do Bayer CropScience Seal Scan or ProttoBau have ads?

Neither Bayer CropScience Seal Scan nor ProttoBau shows ads.

### Which is updated more often, Bayer CropScience Seal Scan or ProttoBau?

Bayer CropScience Seal Scan ships an update every 3 months, and ProttoBau fortnightly. Most recently, Bayer CropScience Seal Scan was updated on October 24, 2026 and ProttoBau on October 24, 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.*