# feiffer grain vs ECU Locator Pro

The clearest difference is update cadence: ECU Locator Pro at every 2 weeks against feiffer grain's monthly. feiffer grain's advantage is iOS requirement (13.0 vs 15.1). 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.

feiffer grain ships an update monthly, ECU Locator Pro every 2 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | feiffer grain | ECU Locator Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/feiffer-grain/id999108374/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 35 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andrea Feiffer](https://appshunter.io/developer/875043798) | [Fahreddin Yusuf Demirkiran](https://appshunter.io/developer/6787461760) |

## What reviewers say

### feiffer grain

[App page](https://appshunter.io/ios/app/feiffer-grain/id999108374)

This application helps farmers accurately measure grain loss during combine harvesting. It calibrates loss control and optimizes combine harvester settings for all crops and configurations. Requires a specific loss control pan made by Feiffer Consult.

**Highlights:** Accurate grain loss measurement, Combine harvester calibration, Optimal combine adjustment, Universal tool for all crops, Calculates loss in %, bushel/acre, $/acre

**Features:** macOS Compatibility

**In-app purchases:** none


### ECU Locator Pro

[App page](https://appshunter.io/ios/app/ecu-locator-pro/id6817015441)

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

**In-app purchases:** none


## Frequently asked questions

### Is feiffer grain free?

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

### Is ECU Locator Pro free?

ECU Locator Pro is free to download, with no in-app purchases.

### Do feiffer grain or ECU Locator Pro have ads?

Neither feiffer grain nor ECU Locator Pro shows ads.

### Which is updated more often, feiffer grain or ECU Locator Pro?

feiffer grain ships an update monthly, and ECU Locator Pro every 2 weeks. Most recently, feiffer grain was updated on November 1, 2026 and ECU Locator Pro on November 6, 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.*