# FeedScan vs Dairy Ventilation

The clearest difference is update cadence: Dairy Ventilation at every 2 weeks against FeedScan's every 5 weeks. FeedScan's advantage is iOS requirement (12.0 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for FeedScan against 5.0 for Dairy Ventilation. Both are backed by a comparable volume of ratings — 8 and 4 respectively.

FeedScan ships an update every 5 weeks, Dairy Ventilation every 2 weeks. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | FeedScan | Dairy Ventilation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (8 ratings)](https://appshunter.io/ios/app/feedscan/id796725241/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/dairy-ventilation/id6767579932/reviews)** |
| Number of ratings | **8** | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 6 MB | 27 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rock River Laboratory, Inc.](https://appshunter.io/developer/796725244) | [University of Wisconsin-Madison Shared Apps](https://appshunter.io/developer/908478605) |

## What reviewers say

### FeedScan

[App page](https://appshunter.io/ios/app/feedscan/id796725241)

Streamline the submission of feed and forage samples to a laboratory. Capture detailed sample information, generate codes, and track analyses. View and share results, find drop-off locations, and receive updates, even without an internet connection.

**Highlights:** Scan barcodes or generate codes for samples, Enter and save sample information, View and share lab results, Navigate to sample drop points, Receive laboratory updates, Offline sample submission

**Features:** macOS Compatibility

**In-app purchases:** none


### Dairy Ventilation

[App page](https://appshunter.io/ios/app/dairy-ventilation/id6767579932)

This tool helps dairy producers make informed decisions about managing heat stress and mechanical ventilation in barns. It calculates key metrics like the Temperature-Humidity Index and fan efficiency, aiding in system design and upgrades.

**Highlights:** Temperature-Humidity Index (THI) calculation with location-based weather, Fan sizing and selection for barns, Assessment of existing ventilation performance, Fan efficiency comparison, Payback period analysis for upgrades

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

**In-app purchases:** none


## Frequently asked questions

### Is FeedScan free?

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

### Is Dairy Ventilation free?

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

### Which has better reviews, FeedScan or Dairy Ventilation?

Dairy Ventilation is rated higher. FeedScan averages 4.9 out of 5 from 8 ratings, while Dairy Ventilation averages 5.0 from 4 ratings.

### Do FeedScan or Dairy Ventilation have ads?

Neither FeedScan nor Dairy Ventilation shows ads.

### Which is updated more often, FeedScan or Dairy Ventilation?

FeedScan ships an update every 5 weeks, and Dairy Ventilation every 2 weeks. Most recently, FeedScan was updated on October 9, 2026 and Dairy Ventilation on September 29, 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.*