# HarvestCalc vs Phase Ag

The clearest difference is in-app purchases: Phase Ag at none against HarvestCalc's 1. Phase Ag also leads on update cadence (fortnightly vs every 8 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. HarvestCalc sells 1 in-app purchase, starting at $14.99 per year. Phase Ag asks for nothing beyond the download.

HarvestCalc ships an update every 8 months, Phase Ag fortnightly. The most recent releases landed on October 7, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | HarvestCalc | Phase Ag |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Fortnightly** |
| Monetization | Subscription | — |
| Size | 8 MB | 34 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [RB & CL Gribble](https://appshunter.io/developer/1554426721) | [Amery Drage](https://appshunter.io/developer/1784179362) |

## What reviewers say

### HarvestCalc

[App page](https://appshunter.io/ios/app/harvestcalc/id701867894)

Calculate grain loss, productivity, and efficiency for combine harvesters. It helps determine net harvesting costs and calibrate grain loss monitors to improve your bottom line.

**Highlights:** Calculate grain loss percentage, weight/area, or $/area, Determine net harvesting cost by weight or area, Assess combine harvester adjustment effectiveness, Calibrate grain loss monitors, Improve combine harvester efficiency and productivity

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HarvestCalc | $14.99 | per year |


### Phase Ag

[App page](https://appshunter.io/ios/app/phase-ag/id6789361606)

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

**In-app purchases:** none


## Frequently asked questions

### Is HarvestCalc free?

HarvestCalc is free to download, with in-app purchases available.

### Is Phase Ag free?

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

### Do HarvestCalc or Phase Ag have ads?

Neither HarvestCalc nor Phase Ag shows ads.

### Which is updated more often, HarvestCalc or Phase Ag?

HarvestCalc ships an update every 8 months, and Phase Ag fortnightly. Most recently, HarvestCalc was updated on October 7, 2026 and Phase Ag on October 21, 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.*