# GrimmeTools vs feiffer combine

The clearest difference is review sentiment: feiffer combine at 69% against GrimmeTools's 0%. GrimmeTools's advantage is in-app purchases (none vs 10) and update cadence (every 2 months vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. feiffer combine sells 10 one-off in-app purchases. GrimmeTools asks for nothing beyond the download.

GrimmeTools ships an update every 2 months, feiffer combine every 6 months. The most recent releases landed on October 3, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | GrimmeTools | feiffer combine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/feiffer-combine/id875043795/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **68.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 20 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grimme](https://appshunter.io/developer/734474978) | [Andrea Feiffer](https://appshunter.io/developer/875043798) |

## What reviewers say

### GrimmeTools

[App page](https://appshunter.io/ios/app/grimmetools/id734474975)

This app provides farmers with essential calculation tools for tramlines, seed needs, yield, and seasonal performance. It supports both metric and imperial units for flexible use in various agricultural settings.

**Highlights:** Tramline calculator, Seed needs calculator, Yield calculator, Seasonal performance calculator, Unit switching (Inch/Metric)

**Features:** macOS Compatibility

**In-app purchases:** none


### feiffer combine

[App page](https://appshunter.io/ios/app/feiffer-combine/id875043795)

This app provides a step-by-step guide for calibrating combine harvesters to achieve optimal settings. It adapts to throughput and losses, ensuring proper adjustment for all harvest conditions and performance ranges, thereby limiting losses.

**Highlights:** Step-by-step calibration guide, Optimal combine harvester settings, Adapts to throughput and losses, Field-tested and reliable values, Quick and safe calibration, Demo version available

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| John Deere 2054 | $29.99 | one-time |
| Claas Trion 720 | $29.99 | one-time |
| Claas Trion 660 | $29.99 | one-time |
| Claas Trion 730 | $29.99 | one-time |
| Claas Trion 640 | $29.99 | one-time |
| Claas Trion 520 | $29.99 | one-time |
| Claas Trion 530 | $29.99 | one-time |
| Claas Trion 650 | $29.99 | one-time |
| John Deere S 785 | $29.99 | one-time |
| Claas Trion 750 | $29.99 | one-time |


## Frequently asked questions

### Is GrimmeTools free?

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

### Is feiffer combine free?

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

### Do GrimmeTools or feiffer combine have ads?

Neither GrimmeTools nor feiffer combine shows ads.

### Which is updated more often, GrimmeTools or feiffer combine?

GrimmeTools ships an update every 2 months, and feiffer combine every 6 months. Most recently, GrimmeTools was updated on October 3, 2026 and feiffer combine on September 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.*