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.


248+ iOS apps curated and reviewed
The best spool ethanol analyzer apps on iPhone average 4.1★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.1★ (14) | No | No | May 2026 | |
| 2 | Free | — | No | No | May 2026 | |
| 3 | Free | — | No | No | May 2026 | |
| 4 | Free | 3.2★ (32) | No | No | May 2026 | |
| 5 | $9.99 | — | No | No | Jul 2026 | |
| 6 | Free | 4.9★ (86) | No | No | Jul 2026 | |
| 7 | Free | — | No | No | May 2026 | |
| 8 | Free | — | No | No | May 2026 |


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.





Monitor your vehicle's ethanol concentration and fuel temperature in real-time. This app wirelessly connects to a compatible Bluetooth module, freeing up your device's port for simultaneous charging and monitoring. It includes an ethanol fill-up concentration calculator and customizable display views.




This app provides a suite of automotive tools for car enthusiasts. It includes calculators for ethanol blends and tire sizes, a tracker for car modifications, and a locator for E85 fuel stations. Optional CarPlay support keeps essential tools accessible on the road.












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.


Quickly calculate the precise amounts of E85 and gasoline needed to achieve your desired ethanol fuel mix. The app remembers your tank details for even faster calculations.


This app assists users in calculating the precise amounts of standard and ethanol gasoline needed to achieve a desired ethanol percentage in their fuel mix. It simplifies the process by taking into account tank size, current fuel level, and the ethanol content of available fuel types.










This app enables users to perform laboratory-grade spectral analysis using a portable, handheld device. It leverages AI and machine learning to build predictive models from your data, helping businesses manage raw material variability and make informed decisions on the spot.

