# Ground Spray vs AgOtter

The clearest difference is update cadence: AgOtter at every 2 months against Ground Spray's every 12 months. AgOtter also leads on ratings volume (6 vs 1). Ground Spray's advantage is iOS requirement (9.3 vs 14.4). On price, rating, review sentiment and ads there is nothing between them.

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

Ground Spray holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: AgOtter has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Ground Spray ships an update every 12 months, AgOtter every 2 months. The most recent releases landed on October 5, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Ground Spray | AgOtter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ground-spray/id528759748/reviews)** | [4.8 (6 ratings)](https://appshunter.io/ios/app/agotter/id964380054/reviews) |
| Number of ratings | 1 | **6** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 10 MB | 7 MB |
| Requires iOS | **9.3** | 14.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [University of Nebraska - Lincoln](https://appshunter.io/developer/317236993) | [Insero](https://appshunter.io/developer/964380053) |

## What reviewers say

### Ground Spray

[App page](https://appshunter.io/ios/app/ground-spray/id528759748)

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:** macOS Compatibility

**In-app purchases:** none


### AgOtter

[App page](https://appshunter.io/ios/app/agotter/id964380054)

This utility app enhances orchard management by providing precise positioning and flow control, even under dense canopies where GPS signals are weak. It wirelessly connects to a mobile device, allowing users to monitor flow rates and adjust settings like swath width and target rate.

**Highlights:** Augments GPS under orchard canopies, Monitors flow rates and position, Wirelessly connects to mobile devices, Adjustable swath width and target rate, Simulates GPS speed for shop testing, On-screen speed and rate limit warnings

**In-app purchases:** none


## Frequently asked questions

### Is Ground Spray free?

Ground Spray is free to download, with no in-app purchases.

### Is AgOtter free?

AgOtter is free to download, with no in-app purchases.

### Which has better reviews, Ground Spray or AgOtter?

Ground Spray is rated higher. Ground Spray averages 5.0 out of 5 from 1 ratings, while AgOtter averages 4.8 from 6 ratings.

### Do Ground Spray or AgOtter have ads?

Neither Ground Spray nor AgOtter shows ads.

### Which is updated more often, Ground Spray or AgOtter?

Ground Spray ships an update every 12 months, and AgOtter every 2 months. Most recently, Ground Spray was updated on October 5, 2026 and AgOtter on October 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*