Comparison

Ground Spray vs Simple

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

Head to head
About

Ground Spray

This utility app helps custom applicators and growers predict spray quality and droplet size spectrum before application. It uses research data to calculate spray characteristics based on user-inputted parameters like nozzle type and pressure, aiding in pesticide efficacy and drift mitigation.

Highlights
  • Predict spray quality
  • Calculate droplet size spectrum
  • Input nozzle type, angle, orifice size, pressure
  • Save and email results
  • Mitigate pesticide drift
  • Access up-to-date spray quality information
Features
Read full description

The Pesticide Application Technology group at the University of Nebraska-Lincoln ‘s West Central Research and Extension Center (WCREC) in North Platte, NE, is dedicated to investigating aspects of pesticide applications, with emphasis on efficacy and drift. We are utilizing new technologies, including laser diffraction systems in a static chamber, a low-speed wind tunnel and a high-speed wind tunnel, to explore application methods and technologies, such as nozzle selection, adjuvant chemistry, sprayer set up, and wind speed. Our goal is to understand how these factors and others interact to influence spray quality, pesticide efficacy, and drift. We have formed close partnerships with both industry and academic collaborators, including Wilbur-Ellis Co., The Aerial Application Technology team within the USDA-ARS, and the University of Queensland, Australia. It is our mission to work with these groups and others interested in maximizing pesticide efficacy and mitigating pesticide drift. We feel that these research efforts are critical to ensuring that yield loss due to pests does not jeopardize our ability to create food, fiber and fuel for a growing world population as well as ensure the health and sustainability of humankind and our environment. This application will allow custom applicators and growers the ability to easily predict the spray quality of their application before it is applied. The user can input nozzle type, spray angle, orifice size, spray pressure, and solution and the application will calculate the spray quality based on our research. The user will be able to save these results or e-mail them to another person or company. This application will also give the droplet size spectrum for the various input parameters which will allow the applicator to have a sense of the potential of the spray to drift. As our research program moves forward, more data points will be added such that any ground applicator can have access to the most up to date information on spray quality.

About

Simple

Read full description

The intuitive time tracking solution your team will actually love. Free for up to 10 users, forever. No credit card, no hidden fees. Just clear insights and better productivity.

Screenshots

Ground Spray4 screens
Simple4 screens

Verdict

The call

The clearest difference is update cadence: Simple at every 8 days against Ground Spray's every 12 months. Ground Spray's advantage is iOS requirement (9.3 vs 15.0). 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

Ground Spray ships an update every 12 months, Simple every 8 days. The most recent releases landed on October 5, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Ground Spray versus Simple: the parameters behind the verdict, then further details
ParameterGround SpraySimple
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 12 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.3 — better15.0
Further details — not scored
Size10 MB44 MB
Age rating4+4+
DeveloperUniversity of Nebraska - LincolnProgramini

In-app purchases

None

Ground Spray

No in-app purchases

None

Simple

No in-app purchases

Questions

Is Ground Spray free?
Ground Spray is free to download, with no in-app purchases.
Is Simple free?
Simple is free to download, with no in-app purchases.
Do Ground Spray or Simple have ads?
Neither Ground Spray nor Simple shows ads.
Which is updated more often, Ground Spray or Simple?
Ground Spray ships an update every 12 months, and Simple every 8 days. Most recently, Ground Spray was updated on October 5, 2026 and Simple on October 8, 2026.

Other comparisons