# Decon Field Guide vs NYS BMP Guide

The clearest difference is review sentiment: NYS BMP Guide at 100% against Decon Field Guide's 0%. NYS BMP Guide also leads on rating (5.0 vs 4.6) and monetization model (free vs ad-supported). Decon Field Guide's advantage is update cadence (every 2 months vs every 37 months) and ratings volume (8 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

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

NYS BMP Guide holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Decon Field Guide has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Decon Field Guide's written reviews are positive against 100% of NYS BMP Guide's.

Decon Field Guide ships an update every 2 months, NYS BMP Guide every 37 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Decon Field Guide | NYS BMP Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (8 ratings)](https://appshunter.io/ios/app/decon-field-guide/id1388378944/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nys-bmp-guide/id1527127965/reviews)** |
| Number of ratings | **8** | 1 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 37 months |
| Monetization | Ad-supported | **Free** |
| Size | 74 MB | 15 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [First Line Technology](https://appshunter.io/developer/1388378943) | [WATERSHED AGRICULTURAL COUNCIL OF THE NEW YORK CITY WATERSHEDS, INC.](https://appshunter.io/developer/1527127967) |

## What reviewers say

### Decon Field Guide

[App page](https://appshunter.io/ios/app/decon-field-guide/id1388378944)

This reference app provides quick and efficient decontamination methods for hundreds of threats. It features a classic Threat Index, pictorial instructions, and an in-app dwell timer to guide users through mission execution. Designed for approved users, it aims to make anyone an instant decontamination expert.

**Highlights:** Threat Index for decontamination methods, Pictorial instructions, In-app dwell timer, Covers hundreds of threats, Designed for approved users

**Features:** macOS Compatibility

**In-app purchases:** none


### NYS BMP Guide

[App page](https://appshunter.io/ios/app/nys-bmp-guide/id1527127965)

This app provides the New York State Voluntary Forestry Best Management Practices for Water Quality Field Guide. It's a practical resource for professionals and landowners involved in timber harvesting and land management to protect erosion and water quality.

**Highlights:** Forestry Best Management Practices, Water Quality Protection, Erosion Control, Timber Harvest Operations, Field Guide Resource

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

**In-app purchases:** none


## Frequently asked questions

### Is Decon Field Guide free?

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

### Is NYS BMP Guide free?

NYS BMP Guide is free to download, with no in-app purchases.

### Which has better reviews, Decon Field Guide or NYS BMP Guide?

NYS BMP Guide is rated higher. Decon Field Guide averages 4.6 out of 5 from 8 ratings, while NYS BMP Guide averages 5.0 from 1 ratings.

### Do Decon Field Guide or NYS BMP Guide have ads?

Neither Decon Field Guide nor NYS BMP Guide shows ads.

### Which is updated more often, Decon Field Guide or NYS BMP Guide?

Decon Field Guide ships an update every 2 months, and NYS BMP Guide every 37 months. Most recently, Decon Field Guide was updated on October 25, 2026 and NYS BMP Guide on October 24, 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.*