# Spool Ethanol Analyzer vs MHD N55 E

The clearest difference is review sentiment: MHD N55 E at 79% against Spool Ethanol Analyzer's 40%. MHD N55 E also leads on rating (4.6 vs 4.1) and update cadence (every 3 weeks vs every 13 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

MHD N55 E holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 14 and 54 respectively. Written reviews point the same way: 40% of Spool Ethanol Analyzer's written reviews are positive against 79% of MHD N55 E's.

Spool Ethanol Analyzer ships an update every 13 months, MHD N55 E every 3 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Spool Ethanol Analyzer | MHD N55 E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (14 ratings)](https://appshunter.io/ios/app/spool-ethanol-analyzer/id1418992096/reviews) | **[4.6 (54 ratings)](https://appshunter.io/ios/app/mhd-n55-e-series/id1502611398/reviews)** |
| Number of ratings | 14 | **54** |
| Positive reviews | 40.0% of reviews | **79.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 9 MB | 123 MB |
| Requires iOS | 11.0 | **10.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ajay Rajeev](https://appshunter.io/developer/1418992095) | [MHD Tuning UG (haftungsbeschraenkt)](https://appshunter.io/developer/1445162439) |

## What reviewers say

### Spool Ethanol Analyzer

[App page](https://appshunter.io/ios/app/spool-ethanol-analyzer/id1418992096)

This application connects to a wireless sensor kit to measure in-tank ethanol content and fuel temperature. It also features a mixing ratio calculator that can be used independently of the sensor hardware.

**Highlights:** Connects to Spool Wireless Ethanol Sensor Kit, Measures in-tank ethanol content, Measures fuel temperature, Includes mixing ratio calculator, Uses Low energy Bluetooth protocols, Fast and reliable data

**Features:** macOS Compatibility

**In-app purchases:** none


### MHD N55 E

[App page](https://appshunter.io/ios/app/mhd-n55-e-series/id1502611398)

This utility app is being retired and users are encouraged to switch to a unified flasher app. It retains some functionality for reading and clearing engine error codes, analyzing past data logs, and accessing vehicle licenses and user guides.

**Highlights:** Read and clear engine DTC error codes, Graph and analyze prior datalogs, View existing vehicle licenses, Access user guide, Transition to unified flasher app

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spool Ethanol Analyzer free?

Spool Ethanol Analyzer is free to download, with no in-app purchases.

### Is MHD N55 E free?

MHD N55 E is free to download, with no in-app purchases.

### Which has better reviews, Spool Ethanol Analyzer or MHD N55 E?

MHD N55 E is rated higher. Spool Ethanol Analyzer averages 4.1 out of 5 from 14 ratings, while MHD N55 E averages 4.6 from 54 ratings.

### Do Spool Ethanol Analyzer or MHD N55 E have ads?

Neither Spool Ethanol Analyzer nor MHD N55 E shows ads.

### Which is updated more often, Spool Ethanol Analyzer or MHD N55 E?

Spool Ethanol Analyzer ships an update every 13 months, and MHD N55 E every 3 weeks. Most recently, Spool Ethanol Analyzer was updated on October 21, 2026 and MHD N55 E 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.*