# Nostrum E85 Ethanol Module App vs TrailerWatchDog

The clearest difference is rating: TrailerWatchDog at 5.0 against Nostrum E85 Ethanol Module App's 4.8. Nostrum E85 Ethanol Module App's advantage is iOS requirement (12.0 vs 16). 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.

TrailerWatchDog holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

## The numbers

| Metric | Nostrum E85 Ethanol Module App | TrailerWatchDog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (5 ratings)](https://appshunter.io/ios/app/nostrum-e85-ethanol-module-app/id1503385365/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trailerwatchdog/id6474664454/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | Free | Free |
| Size | 10 MB | 4 MB |
| Requires iOS | **12.0** | 16 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Performance Electronics](https://appshunter.io/developer/1161515426) | [TrailerWatchdog LLC](https://appshunter.io/developer/1722228703) |

## What reviewers say

### Nostrum E85 Ethanol Module App

[App page](https://appshunter.io/ios/app/nostrum-e85-ethanol-module-app/id1503385365)

Monitor your vehicle's ethanol content, fuel temperature, and fuel pressure in real-time from your wireless device. This app allows for unit selection, displays module status, and enables sensor calibration. A demo mode is included for operation without a physical module.

**Highlights:** Real-time ethanol content monitoring, Fuel temperature and pressure display, Metric/Imperial unit selection, Sensor calibration, Demo mode, Connect to multiple modules

**Features:** macOS Compatibility

**In-app purchases:** none


### TrailerWatchDog

[App page](https://appshunter.io/ios/app/trailerwatchdog/id6474664454)

Monitor critical data for your trailers, including axle temperatures, tire pressure, and tire temperatures. This app works with specific monitoring systems from Trailerwatchdog.com.

**Highlights:** Axle temperature monitoring, Tire pressure monitoring, Tire temperature monitoring, Works with TWD monitoring systems, Real-time data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nostrum E85 Ethanol Module App free?

Nostrum E85 Ethanol Module App is free to download, with no in-app purchases.

### Is TrailerWatchDog free?

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

### Which has better reviews, Nostrum E85 Ethanol Module App or TrailerWatchDog?

TrailerWatchDog is rated higher. Nostrum E85 Ethanol Module App averages 4.8 out of 5 from 5 ratings, while TrailerWatchDog averages 5.0 from 2 ratings.

### Do Nostrum E85 Ethanol Module App or TrailerWatchDog have ads?

Neither Nostrum E85 Ethanol Module App nor TrailerWatchDog shows ads.

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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.*