Comparison

feiffer grain vs COMET8

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

feiffer grain

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
Read full description

Accurate and easy loss measurement. This App serves for calculating the grain loss during combine harvesting. It helps you avoid losses, calibrate loss control, as well as optimally adjust your combine harvester. If you want to use this App, you need a loss control pan made by Feiffer Consult. How it works: Threshing losses are collected during combined harvesting using a loss control pan. Read out the number of lost grains from a simple counting scale or weigh them using a pocket scale. Input the result in the App feiffer grain. On the basis of the specific yield, the TGWs, and the combine harvester parameters, the loss values will be calculated exactly. This App is a universal tool for all crops and all combine harvester configurations. The result is calculated in %, bushel/acre and $/acre. This app is freely available and does not require any In-App-purchases.

About

COMET8

Features
Read full description

Comet8 It is the first system on the market that allows to carry out an antibiotic screening test automatically and share the results in real time. Just apply a drop of milk to the test tube and Comet4 will automatically perform the test in less than 2.5 hours. Results are sent to your smart device, cloud account or email in real time.

Screenshots

feiffer grain2 screens
COMET84 screens

Verdict

The call

The clearest difference is update cadence: feiffer grain at monthly against COMET8's every 17 months. COMET8's advantage is iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

feiffer grain ships an update monthly, COMET8 every 17 months. The most recent releases landed on September 24, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
feiffer grain versus COMET8: the parameters behind the verdict, then further details
Parameterfeiffer grainCOMET8
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyMonthly — betterEvery 17 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.011.0 — better
Further details — not scored
Size7 MB33 MB
Age rating4+4+
DeveloperAndrea FeifferAndres Mena Tobar

In-app purchases

None

feiffer grain

No in-app purchases

None

COMET8

No in-app purchases

Questions

Is feiffer grain free?
feiffer grain is free to download, with no in-app purchases.
Is COMET8 free?
COMET8 is free to download, with no in-app purchases.
Do feiffer grain or COMET8 have ads?
Neither feiffer grain nor COMET8 shows ads.
Which is updated more often, feiffer grain or COMET8?
feiffer grain ships an update monthly, and COMET8 every 17 months. Most recently, feiffer grain was updated on September 24, 2026 and COMET8 on October 6, 2026.

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