# Spool Ethanol Analyzer — Includes Mixing Calculator > Measures ethanol content and fuel temperature with a wireless sensor kit and includes a mixing calculator. (iPhone/iPad app by Ajay Rajeev.) - Source: https://appshunter.io/ios/app/spool-ethanol-analyzer/id1418992096 (this page in markdown: same URL + `.md`) - Developer: [Ajay Rajeev](https://appshunter.io/developer/1418992095) - Category: Utilities, Reference - Price: Free - Rating: 4.14/5 from 14 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 11.0 · 9 MB - Languages: English - Released: 2018-08-13 - Data updated: 2026-06-09 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/spool-ethanol-analyzer/id1418992096/reviews.md ## What is Spool Ethanol Analyzer? 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 ## Key features - 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 ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/spool-ethanol-analyzer/id1418992096/reviews.md ### 3/5 — Metric needed *2024-10-26* I live in canada and the pumps are in litres and the app is only in gallons so i have to do the conversion all the time when filling up. Please add a metric option. Otherwise works fine. ### 2/5 — Calculator is no good. *2022-03-20* The calculator is nowhere near precise enough as it should be. It should not round gallons needed to the nearest whole gallon. Fuel tank size should be adjustable by 0.5 gal instead of 1 gallon. Same thing with all the estimated ethanol grades. Should be by 1% and not 5%. ### 5/5 — The best *2020-09-05* The analyzer and the app are flawless +1yr in. Was far more affordable than FueliT ### 1/5 — Gallons? *2020-06-20* Literally only the USA uses gallons. If this company is serious about selling their product have an option for Litres calculation. 7 billion people use Litres, 400 million use gallons. ### 5/5 — Amazing!! *2020-04-11* The best app for e85!! ### 2/5 — Please allow adjustable fuel tank size!! *2020-03-12* I'm sure this would be an easy update, email your developer and ask him/her to add this option! If there is no update then I will be forced to go with other competitors offerings. ### 5/5 — Great way to estimate ethanol amounts *2020-02-06* Pro: This is a great app that allows you to calculate how much ethanol you need when running a mixed fuel tune for example e50!! Wonderful app!! Con: only works for one size fuel tank. ### 5/5 — Perfect *2019-06-29* This is my favorite application to use for creating mixes while filling up at the pump. ### 2/5 — Please make the fuel level adjustable! Thanks! *2019-01-16* Works but need to make the fuel level gallons adjustable! Thanks! ### 3/5 — Calculator works, but only for 16-gallon tanks *2018-12-15* Please allow configuration of fuel tank capacity. ## Frequently asked questions about Spool Ethanol Analyzer ### What is Spool Ethanol Analyzer used for? Spool Ethanol Analyzer connects to the Spool Wireless Ethanol Sensor Kit to measure in-tank ethanol content and fuel temperature. It also includes a mixing ratio calculator that can be used independently. ### Does Spool Ethanol Analyzer require the Spool Wireless Ethanol Sensor Kit? While the app is designed to connect to the Spool Wireless Ethanol Sensor Kit, its mixing ratio calculator can be used even if you do not have access to the sensor hardware. ### What devices does Spool Ethanol Analyzer support? Spool Ethanol Analyzer is supported on iPhone, iPad, and iPod devices. ### How often is Spool Ethanol Analyzer updated? The latest version, 1.6, was released on October 16, 2020. The app was originally released on August 13, 2018. ### What is the age rating for Spool Ethanol Analyzer? Spool Ethanol Analyzer has an age rating of 4+. ### What is the user rating for Spool Ethanol Analyzer? Spool Ethanol Analyzer has a rating of 4.1 stars from 14 ratings. ### Does Spool Ethanol Analyzer have ads? No, Spool Ethanol Analyzer does not contain advertisements. ### Where can I purchase the Spool Wireless Ethanol Sensor Kit? The Spool Wireless Ethanol Sensor Kit can be purchased at www.spoolperformance.us. ## Version history (last 3 releases) ### 1.6 — 2020-10-16 Included support for our newly released handheld wireless ethanol content analyzer. Included tank size as a customizable option for mix calculator. The selected tank size would be saved between sessions until user selects a new tank size. Updated Layout changes for newer devices Minor Bug Fixes ### 1.5 — 2020-10-16 Included support for our newly released handheld wireless ethanol content analyzer. Included tank size as a customizable option for mix calculator. The selected tank size would be saved between sessions until user selects a new tank size. Updated Layout changes for newer devices ### 1.04 — 2018-08-11 No release notes. ## Apps similar to Spool Ethanol Analyzer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Swim Student Database](https://appshunter.io/ios/app/swim-student-database/id1486501060) | — | Free | Utilities | | [xDelete](https://appshunter.io/ios/app/xdelete/id1471996797) | 4.7 (490) | Free | Utilities | | [e85Cal](https://appshunter.io/ios/app/e85cal/id1470313135) | 4.7 (35) | Free | Utilities | | [魔方寻亲](https://appshunter.io/ios/app/id1535752900) | — | Free | Utilities | | [Equinoxes](https://appshunter.io/ios/app/equinoxes/id1483515020) | 1.0 (1) | $0.99 | Utilities | | [mDNS Utility](https://appshunter.io/ios/app/mdns-utility/id918208340) | 1.6 (5) | $0.99 | Utilities | ## More apps by Ajay Rajeev - [Spool Ethanol Analyzer (Watch)](https://appshunter.io/ios/app/spool-ethanol-analyzer-watch/id1531053194) All apps by Ajay Rajeev: https://appshunter.io/developer/1418992095 ## Related topics [ajay rajeev](https://appshunter.io/ios/topics/ajay-rajeev) · [spool](https://appshunter.io/ios/topics/spool) · [e85 mix ethanol calculator](https://appshunter.io/ios/topics/e85-mix-ethanol-calculator) · [e85 calculator](https://appshunter.io/ios/topics/e85-calculator) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-09.*