# Tru vs CalfGuide

The clearest difference is review sentiment: CalfGuide at 100% against Tru's 20%. Tru's advantage is iOS requirement (8.0 vs 17.6). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Tru | CalfGuide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/tru-test-data-link/id893033296/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 20.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 166 MB | 82 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Datamars SA](https://appshunter.io/developer/899066582) | [Holm & Laue GmbH & Co. KG](https://appshunter.io/developer/1460267524) |

## What reviewers say

### Tru

[App page](https://appshunter.io/ios/app/tru-test-data-link/id893033296)

Easily transfer session files from your Tru-Test device to your phone. Upload data to livestock management platforms, share via email, or send to national traceability programs. Manage device settings and record sessions remotely.

**Highlights:** Download session files, Upload to Datamars Livestock, Share via email, Send to traceability programs, Change device settings, Record sessions, Share GPS location

**Features:** macOS Compatibility

**In-app purchases:** none


### CalfGuide

[App page](https://appshunter.io/ios/app/calfguide/id1460267525)

Manage calf feeding data, monitor drinking habits, and track health with detailed insights from automated systems. Receive customizable notifications for feeding, fill levels, and system alerts to keep your calf barn running smoothly.

**Highlights:** Calf list with feeding data, Automated system overview, Customizable push notifications, Calf health assessment tool, Multi-feeder management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tru free?

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

### Is CalfGuide free?

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

### Do Tru or CalfGuide have ads?

Neither Tru nor CalfGuide shows ads.

### Which is updated more often, Tru or CalfGuide?

Tru ships an update every 2 months, and CalfGuide every 2 months. Most recently, Tru was updated on October 7, 2026 and CalfGuide on September 23, 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.*