# Cowculate vs Farm Source Dairy Diary

The clearest difference is review sentiment: Cowculate at 100% against Farm Source Dairy Diary's 44%. Cowculate also leads on iOS requirement (10.0 vs 17.0). Farm Source Dairy Diary's advantage is price (Free vs $10.99) and update cadence (fortnightly vs every 2 months). On ads, in-app purchases and device support there is nothing between them.

Farm Source Dairy Diary is free to download; Cowculate costs $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cowculate ships an update every 2 months, Farm Source Dairy Diary fortnightly. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Cowculate | Farm Source Dairy Diary |
| --- | --- | --- |
| Price | $10.99 | **Free** |
| Positive reviews | **100.0% of reviews** | 44.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | Paid | **Free** |
| Size | 21 MB | 43 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NLR Pastoral Ltd](https://appshunter.io/developer/894993864) | [Fonterra Co-Operative Group](https://appshunter.io/developer/1017227327) |

## What reviewers say

### Cowculate

[App page](https://appshunter.io/ios/app/cowculate/id894993861)

This app helps New Zealand dairy farmers quickly and easily calculate essential grazing metrics. It provides tools for feeding rates, break sizes, dry matter calculations, and per-cow figures, eliminating the need for manual spreadsheets.

**Highlights:** Rotation Length Calculation, Stocking Rate Calculation, Pasture Demand Calculation, Total Demand Calculation, m2 Per Cow Calculation, Energy Requirements Calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### Farm Source Dairy Diary

[App page](https://appshunter.io/ios/app/farm-source-dairy-diary/id1313531287)

This app streamlines farm management by allowing quick recording of animal treatments, feed, fertiliser, and effluent applications. It automatically calculates withholding periods and RTV dates, saving time and ensuring compliance. The app functions offline, making it usable even without mobile coverage.

**Highlights:** Record animal treatments, Track feed and fertiliser applications, Log effluent and agrichemical spraying, Manage monthly hygiene checks, Calculate withholding and RTV dates, Offline functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cowculate free?

Cowculate costs $10.99, with no in-app purchases.

### Is Farm Source Dairy Diary free?

Farm Source Dairy Diary is free to download, with no in-app purchases.

### Do Cowculate or Farm Source Dairy Diary have ads?

Neither Cowculate nor Farm Source Dairy Diary shows ads.

### Which is updated more often, Cowculate or Farm Source Dairy Diary?

Cowculate ships an update every 2 months, and Farm Source Dairy Diary fortnightly. Most recently, Cowculate was updated on November 6, 2026 and Farm Source Dairy Diary on November 4, 2026.

---

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