# Dimo's / Labtronics Model 919 vs Corteva Canada Field Guide

The clearest difference is price: Corteva Canada Field Guide at Free against Dimo's / Labtronics Model 919's $2.99. Corteva Canada Field Guide also leads on update cadence (every 2 months vs every 14 months). Dimo's / Labtronics Model 919's advantage is review sentiment (100% vs 80%) and iOS requirement (14.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Corteva Canada Field Guide is free to download; Dimo's / Labtronics Model 919 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Dimo's / Labtronics Model 919 ships an update every 14 months, Corteva Canada Field Guide every 2 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | Dimo's / Labtronics Model 919 | Corteva Canada Field Guide |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/corteva-canada-field-guide/id589880256/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 9 MB | 157 MB |
| Requires iOS | **14.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dimo's Tool & Die Ltd.](https://appshunter.io/developer/534271329) | [Corteva, Inc.](https://appshunter.io/developer/1452849724) |

## What reviewers say

### Dimo's / Labtronics Model 919

[App page](https://appshunter.io/ios/app/dimos-labtronics-model-919/id534271306)

This application replaces paper charts for moisture testing. Input sample temperature and readings from a Model 919 moisture tester to quickly calculate moisture content. It supports storing favorite commodities and includes both U.S. and Canadian charts, along with test weight conversions.

**Highlights:** Replaces paper charts, Input temperature and readings, Calculate moisture content, Store favorite commodities, U.S. and Canadian charts, Test weight conversion

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Corteva Canada Field Guide

[App page](https://appshunter.io/ios/app/corteva-canada-field-guide/id589880256)

This app helps Canadian farmers select the best crop protection products for their farms. It provides detailed information on herbicides, fungicides, and insecticides, along with tools for tank mixing, calculating volumes, and estimating rewards.

**Highlights:** Crop protection product portfolio, Tank Mix Order tool, Offline product information, Weed, insect, and disease identification, Volume to Volume calculator, Enlist E3™ Soybean Program Approach Tool, Flex+ Rewards Estimator

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Dimo's / Labtronics Model 919 free?

Dimo's / Labtronics Model 919 costs $2.99, with no in-app purchases.

### Is Corteva Canada Field Guide free?

Corteva Canada Field Guide is free to download, with no in-app purchases.

### Do Dimo's / Labtronics Model 919 or Corteva Canada Field Guide have ads?

Neither Dimo's / Labtronics Model 919 nor Corteva Canada Field Guide shows ads.

### Which is updated more often, Dimo's / Labtronics Model 919 or Corteva Canada Field Guide?

Dimo's / Labtronics Model 919 ships an update every 14 months, and Corteva Canada Field Guide every 2 months. Most recently, Dimo's / Labtronics Model 919 was updated on October 23, 2026 and Corteva Canada Field Guide on October 23, 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.*