Fertilizer Calc App vs SprayCalc Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fertilizer Calc App
This app helps farmers precisely calculate fertilization needs for their crops. Users can input field details, set fertilization targets for key nutrients like N, P, and K, and determine the required application rates per hectare. It also supports custom area units for flexible calculations.
- Calculate N, P, K, MG, CA needs per field
- Set fertilization targets
- Determine Kg/Ha for each element
- Add custom area units
- Supports multiple custom units with Pro membership
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Take control of every element of fertilization. Add Fields -> Set Fertilization Target -> Add fertilization you can take control of N, P, K, MG, CA. for every field, setting the target and see how may Kg/Ha of every element your crops need. You deserve a custom area unit? No problem! just add your custom area unit in square meters (es. Acre = 4046) and Fertilizer Calc does the conversione for you. You can add multiple custom unit with pro membership.
SprayCalc Pro
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SprayCalc Pro is the essential spray calculator for farmers, custom applicators, and agronomists. Stop doing math in your head or on scraps of paper — get your tank mixes right every time. TANK MIX CALCULATOR Enter your tank size, total acres, and target gallons per acre. Add as many chemical products as your mix requires — herbicides, fungicides, insecticides, or fertilizers — in any unit (oz, pt, qt, gal, lb). SprayCalc Pro instantly shows you: • Exact ounces, pints, quarts, and gallons of each product per tank • Water fill per tank • Total product needed for the entire job • Acres per tank and total tanks needed • Partial tank callout when acreage doesn't divide evenly NOZZLE & SPEED CALCULATOR Two powerful modes to dial in your application: • Find Target Speed — enter your nozzle GPM, spacing, and target GPA to get the exact MPH to drive • Find Actual GPA — enter your current speed to see the real gallons per acre being applied Includes boom width, total flow, acres per hour, a speed vs GPA reference table, and alerts when you're outside safe operating ranges. SAVED MIXES Save your go-to tank mixes and reload them in seconds. Tap any saved mix, enter a new acreage, and the app instantly recalculates per-tank amounts. Your mix library is always with you. FIELD HISTORY LOG Keep a complete record of every spray job: • Field name, date, and spray type • Acres, GPA, tank size, and tanks used • Every product applied with rate and total amount • Weather conditions at time of application • Notes and observations Log jobs directly from the calculator results screen, or enter them manually. Filter by spray type, search by field name or product, and track season totals at a glance. DISCLAIMER SprayCalc Pro is a calculation aid. Always verify application rates against current product labels and consult a licensed agronomist for crop-specific recommendations. Follow all local regulations regarding pesticide application
Screenshots
Verdict
The clearest difference is price: Fertilizer Calc App at Free against SprayCalc Pro's $2.99. Fertilizer Calc App also leads on device support. SprayCalc Pro's advantage is in-app purchases (none vs 2). On iOS requirement 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
Fertilizer Calc App is free to download; SprayCalc Pro costs $2.99 up front. Fertilizer Calc App sells 2 in-app purchases, starting at $1.99 per month. SprayCalc Pro asks for nothing beyond the download.
| Parameter | Fertilizer Calc App | SprayCalc Pro |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | — |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | — |
| Requires iOS | 16.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 18 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Alberto Giambone | Rampant Moxie |
In-app purchases
Fertilizer Calc App
- Custom Area Unit$1.991 Month
- Custom Area Unit$9.991 Year
SprayCalc Pro
No in-app purchases
Questions
Is Fertilizer Calc App free?
Is SprayCalc Pro free?
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