# EnviroMonitor vs NDAWN Inversion

The clearest difference is update cadence: EnviroMonitor at every 3 months against NDAWN Inversion's every 19 months. EnviroMonitor also leads on rating (5.0 vs 4.7). NDAWN Inversion's advantage is iOS requirement (12.0 vs 17.6). 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.

EnviroMonitor holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 5 and 7 respectively.

EnviroMonitor ships an update every 3 months, NDAWN Inversion every 19 months. The most recent releases landed on September 18, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | EnviroMonitor | NDAWN Inversion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/enviromonitor/id1164554672/reviews)** | [4.7 (7 ratings)](https://appshunter.io/ios/app/ndawn-inversion/id1385751300/reviews) |
| Number of ratings | 5 | **7** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 19 months |
| Monetization | Free | Free |
| Size | 43 MB | 28 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Davis Instruments Corp.](https://appshunter.io/developer/329074190) | [North Dakota State University](https://appshunter.io/developer/493125863) |

## What reviewers say

### EnviroMonitor

[App page](https://appshunter.io/ios/app/enviromonitor/id1164554672)

This app simplifies the setup, monitoring, and interaction with your environmental sensor hardware. It guides you through configuring systems, activating cloud connections, and installing sensors, ensuring reliable data flow with helpful notifications.

**Highlights:** Effortless configuration, Monitor hardware and sensor systems, Configure unlimited systems, Activate cloud connection, Establish mesh network, Install supported sensors, Team access to devices, Problem identification notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### NDAWN Inversion

[App page](https://appshunter.io/ios/app/ndawn-inversion/id1385751300)

This app monitors real-time weather data to detect air temperature inversions, which can affect spray drift. It sends push notifications when spraying may no longer be advisable, helping users comply with label instructions. Essential weather data like wind speed and temperature are also provided.

**Highlights:** Real-time inversion detection, Push notifications for spraying advisories, Wind speed and temperature data, Updates every 5 minutes, Supports selected stations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EnviroMonitor free?

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

### Is NDAWN Inversion free?

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

### Which has better reviews, EnviroMonitor or NDAWN Inversion?

EnviroMonitor is rated higher. EnviroMonitor averages 5.0 out of 5 from 5 ratings, while NDAWN Inversion averages 4.7 from 7 ratings.

### Do EnviroMonitor or NDAWN Inversion have ads?

Neither EnviroMonitor nor NDAWN Inversion shows ads.

### Which is updated more often, EnviroMonitor or NDAWN Inversion?

EnviroMonitor ships an update every 3 months, and NDAWN Inversion every 19 months. Most recently, EnviroMonitor was updated on September 18, 2026 and NDAWN Inversion on June 1, 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.*