HarvestCalc vs NetBlotchBM
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
HarvestCalc
Calculate grain loss, productivity, and efficiency for combine harvesters. It helps determine net harvesting costs and calibrate grain loss monitors to improve your bottom line.
- Calculate grain loss percentage, weight/area, or $/area
- Determine net harvesting cost by weight or area
- Assess combine harvester adjustment effectiveness
- Calibrate grain loss monitors
- Improve combine harvester efficiency and productivity
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HarvestCalc - The quick & easy way to calculate grain loss, productivity & efficiency of your combine harvester. โข With just a few steps you can calculate your combine harvesters grain loss, either as a percentage of total yield, or weight/area, or in $/area. More importantly, Harvestcalc can calculate your net harvesting cost by weight ($/t) or cost by area ($/ha). โข Use Harvestcalc to check the effectiveness of those adjustments you make to your combine harvester to minimise grain loss whilst maximising your combine harvesters efficiency & productivity. โข Use Harvestcalc to calibrate your combine harvesters grain loss monitors to make sense of what your grain loss indicator really means. HarvestCalc - can provide the tools for a better bottom line. Terms of Use: https://www.termsfeed.com/live/42a373f7-d989-4408-a451-199c43526930
NetBlotchBM
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NetBlotchBM factors in grain price, input costs, yield benefits, seasonal conditions, crop circumstance and conditions, state, fungicide strategies and other diseases to give you the best case, worst case and most likely estimates of financial return from different management strategies. NetBlotchBM does not account for all factors that can affect net blotch in barley crops, so information provided by this tool should not be considered to be tailored to the circumstances of any individual farm.
Screenshots
Verdict
The clearest difference is in-app purchases: NetBlotchBM at none against HarvestCalc's 1. NetBlotchBM also leads on update cadence (every 5 weeks vs every 8 months) and device support (3 vs 1). On price and ads there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. HarvestCalc sells 1 in-app purchase, starting at $14.99 per year. NetBlotchBM asks for nothing beyond the download.
HarvestCalc ships an update every 8 months, NetBlotchBM every 5 weeks. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.
| Parameter | HarvestCalc | NetBlotchBM |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | โ |
| Update frequency | Every 8 months | Every 5 weeks โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Monetization | Subscription | โ |
| Devices | iPhone | iPhone, iPad, iPod โ better |
| Requires iOS | 16.0 | 14.0 โ better |
| Further details โ not scored | ||
| Size | 8 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | RB & CL Gribble | Department of Primary Industries and Regional Development |
In-app purchases
HarvestCalc
- HarvestCalc7 Days trial$14.991 Year
NetBlotchBM
No in-app purchases









