# Soil Sensor Calculator vs Simplot Advisor 3.0

The clearest difference is rating: Soil Sensor Calculator at 5.0 against Simplot Advisor 3.0's 3.3. Soil Sensor Calculator also leads on iOS requirement (15.0 vs 17.0). Simplot Advisor 3.0's advantage is update cadence (fortnightly vs every 5 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Soil Sensor Calculator holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 6 and 15 respectively.

Soil Sensor Calculator ships an update every 5 months, Simplot Advisor 3.0 fortnightly. The most recent releases landed on June 1, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Soil Sensor Calculator | Simplot Advisor 3.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/soil-sensor-calculator/id1332146282/reviews)** | [3.3 (15 ratings)](https://appshunter.io/ios/app/simplot-advisor-30/id6447077420/reviews) |
| Number of ratings | 6 | **15** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 9 MB | 145 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chris Henry](https://appshunter.io/developer/1188474414) | [J. R. SIMPLOT COMPANY](https://appshunter.io/developer/682615550) |

## What reviewers say

### Soil Sensor Calculator

[App page](https://appshunter.io/ios/app/soil-sensor-calculator/id1332146282)

This tool helps users calculate irrigation needs based on Watermark sensor readings. It determines average centibar readings, available water, stress levels, and irrigation requirements, factoring in soil type and growth stage.

**Highlights:** Enter Watermark sensor readings, Calculate average centibar reading, Determine available water remaining, Assess soil stress level, Calculate days to irrigation, Estimate water required for irrigation

**Features:** macOS Compatibility

**In-app purchases:** none


### Simplot Advisor 3.0

[App page](https://appshunter.io/ios/app/simplot-advisor-30/id6447077420)

This app allows crop advisors to conduct field sampling and scouting with real-time data syncing and offline capabilities. It supports downloading grower information, viewing field boundaries, and collecting soil and plant tissue samples using various modes. Users can also request lab recommendations and share check-in sheets directly from the field.

**Highlights:** Offline GPS-enabled sample collection, Real-time data syncing, View field and planting boundaries, Grid, zone, target, and freeform sampling modes, Request lab recommendations, Share lab check-in sheets

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Soil Sensor Calculator free?

Soil Sensor Calculator is free to download, with no in-app purchases.

### Is Simplot Advisor 3.0 free?

Simplot Advisor 3.0 is free to download, with no in-app purchases.

### Which has better reviews, Soil Sensor Calculator or Simplot Advisor 3.0?

Soil Sensor Calculator is rated higher. Soil Sensor Calculator averages 5.0 out of 5 from 6 ratings, while Simplot Advisor 3.0 averages 3.3 from 15 ratings.

### Do Soil Sensor Calculator or Simplot Advisor 3.0 have ads?

Neither Soil Sensor Calculator nor Simplot Advisor 3.0 shows ads.

### Which is updated more often, Soil Sensor Calculator or Simplot Advisor 3.0?

Soil Sensor Calculator ships an update every 5 months, and Simplot Advisor 3.0 fortnightly. Most recently, Soil Sensor Calculator was updated on June 1, 2026 and Simplot Advisor 3.0 on September 3, 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.*