# Spread Charts vs feiffer combine

The clearest difference is in-app purchases: Spread Charts at none against feiffer combine's 10. feiffer combine's advantage is ads (none vs shown) and update cadence (every 6 months vs every 12 months). On price and device support there is nothing between them.

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

Spread Charts ships an update every 12 months, feiffer combine every 6 months. The most recent releases landed on September 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Spread Charts | 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 | — | 68.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 6 months** |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 20 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BOGBALLE A/S](https://appshunter.io/developer/845041849) | [Andrea Feiffer](https://appshunter.io/developer/875043798) |

## What reviewers say

### Spread Charts

[App page](https://appshunter.io/ios/app/spread-charts/id845041846)

**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 Spread Charts free?

Spread Charts 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 Spread Charts or feiffer combine have ads?

Spread Charts shows ads; feiffer combine does not.

### Which is updated more often, Spread Charts or feiffer combine?

Spread Charts ships an update every 12 months, and feiffer combine every 6 months. Most recently, Spread Charts was updated on September 20, 2026 and feiffer combine on October 8, 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.*