Spool Ethanol Analyzer vs MHD N55 E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spool Ethanol Analyzer
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.
- 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
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Spool Ethanol Analyzer is designed to connect to the Spool Wireless Ethanol Sensor Kit and/or the Spool Handheld ethanol analyzer to help determine the in-tank/pump ethanol content and fuel temperature. It incorporates the latest Low energy Bluetooth protocols and provides fast and reliable ethanol content information right on your smartphone. The App also includes a mixing ratio calculator and it can be used even if you don't have access to the Spool Wireless Ethanol Sensor Kit. The Spool Wireless Ethanol Sensor Kit can be purchased at www.spoolperformance.us
MHD N55 E
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.
- Read and clear engine DTC error codes
- Graph and analyze prior datalogs
- View existing vehicle licenses
- Access user guide
- Transition to unified flasher app
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This app is being retired. Please switch to our unified "MHD Flasher" app which now supports all E/F/G series vehicles / engines as well as Supra. This app will remain as a shell to help you switch over. Additionally, some functionality will remain to read and clear engine DTC error codes, graph and analyze your prior datalogs, view your existing vehicle licenses, and access the user guide!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Spool Ethanol Analyzer | MHD N55 E |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (14 ratings) | 4.6 (54 ratings) — better |
| Positive reviews | 40.0% of reviews | 79.2% of reviews — better |
| Number of ratings | 14 | 54 — better |
| Update frequency | Every 13 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 10.2 — better |
| Further details — not scored | ||
| Size | 9 MB | 123 MB |
| Age rating | 4+ | 4+ |
| Developer | Ajay Rajeev | MHD Tuning UG (haftungsbeschraenkt) |
Customer experience
Spool Ethanol Analyzer
MHD N55 E
In-app purchases
Spool Ethanol Analyzer
No in-app purchases
MHD N55 E
No in-app purchases
Questions
Is Spool Ethanol Analyzer free?
Is MHD N55 E free?
Which has better reviews, Spool Ethanol Analyzer or MHD N55 E?
Do Spool Ethanol Analyzer or MHD N55 E have ads?
Which is updated more often, Spool Ethanol Analyzer or MHD N55 E?
Other comparisons
