feiffer combine vs SoilDoc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
feiffer combine
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.
- 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
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Calibration of combine harvesters made easy - The "feiffer combine" App is an easy step by step guide to the optimum settings of your combine harvester. It can be done quickly and safely because these setting values are field-tested and have proved to be reliable with expert operators. The distinguishing feature of this App is: It adapts the settings also to throughput and losses. In this way, the combine harvester is always set properly not only at all harvest conditions but also within each performance range. Losses are limited. This App works as follows: You can test a demo-version to see what this App can offer. If it is useful for you, select the type of your combine harvester and download the corresponding App into your smartphone.
SoilDoc
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Soil structure is an essential component of soil fertility. The spade diagnosis is a suitable method for assessing the soil structure and other attributes of soil quality from observations such as odour, colour, roots, soil particles or soil layers. The SoilDoc app guides you through the spade diagnosis and the observations for a complete assessment of a selected soil. The app can replace former printed instructions. The SoilDoc app asks questions about the soil, which can be answered with a simple click. Additional information and example pictures help to find the answers. During the evaluation, the app collects all observations made and generates a report. The report is stored on the mobile phone and can then be exported in csv, txt or html format and saved as a PDF file on a computer. The simple archiving of the observations facilitates the comparison of different surveys at the same location.
Screenshots
Verdict
The clearest difference is in-app purchases: SoilDoc at none against feiffer combine's 10. On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. feiffer combine sells 10 one-off in-app purchases. SoilDoc asks for nothing beyond the download.
feiffer combine ships an update every 6 months, SoilDoc every 8 months. The most recent releases landed on October 8, 2026 and September 18, 2026 respectively.
| Parameter | feiffer combine | SoilDoc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 68.8% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13 |
| Further details — not scored | ||
| Size | 20 MB | 131 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrea Feiffer | Forschungsinstitut fur biologischen Landbau FiBL |
In-app purchases
feiffer combine
- John Deere 2054$29.99
- Claas Trion 720$29.99
- Claas Trion 660$29.99
Show 7 moreShow fewer
- Claas Trion 730$29.99
- Claas Trion 640$29.99
- Claas Trion 520$29.99
- Claas Trion 530$29.99
- Claas Trion 650$29.99
- John Deere S 785$29.99
- Claas Trion 750$29.99
SoilDoc
No in-app purchases









