Fuel vs E85 Content
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fuel
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.
- Real-time ethanol concentration monitoring
- Real-time fuel temperature monitoring
- Wireless Bluetooth connectivity
- Ethanol fill-up concentration calculator
- Fahrenheit or Celsius display options
- Two display views
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***Note that this app requires a custom Bluetooth module to function. Info on the module can be found here: https://fuel-it.com/products/fuel-it-bluetooth-flex-fuel-analyzer The Fuel-It ECA gives you realtime feedback from your Continental Ethanol sensor. Wireless communication frees up your device's port so you can monitor and charge at the same time. Features: Ethanol concentration monitoring Fuel temperature monitoring 2 Display Views Fuel temperature display in Fahrenheit or Celsius Ethanol fill-up concentration calculator
E85 Content
This application displays real-time ethanol content and fuel pressure for your vehicle's fuel system. It requires a specific Bluetooth plugin kit and is compatible with a range of vehicles, with ongoing development for expansion.
- Real-time ethanol content display
- Real-time fuel pressure display
- Requires Flex Fuel Bluetooth plugin kit
- Compatible with various vehicles
- Ongoing development and expansion
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Real time display of the ethanol content and fuel pressure of your vehicles fuel system. This application requires the Delicious Tuning Flex Fuel Bluetooth plugin kit, optional Fuel Pressure Safety System and Apple 10.2 iOS or higher. It is compatible with a range of vehicles and we will be expanding as we continue to develop the hardware and application.
Screenshots
Verdict
The clearest difference is review sentiment: Fuel at 50% against E85 Content's 0%. E85 Content's advantage is rating (3.4 vs 3.1). On price, ratings volume, update cadence and ads 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.
E85 Content holds the better App Store score, 3.4 against 3.1. Both are backed by a comparable volume of ratings — 33 and 12 respectively. Written reviews complicate that: 50% of Fuel's written reviews are positive against 0% of E85 Content's, so the app with the better star average is not the one people write more warmly about.
Fuel ships an update every 10 months, E85 Content every 17 months. The most recent releases landed on October 6, 2026 and September 22, 2026 respectively.
| Parameter | Fuel | E85 Content |
|---|---|---|
| Price | Free | Free |
| Rating | 3.1 (33 ratings) | 3.4 (12 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 33 — better | 12 |
| Update frequency | Every 10 months — better | Every 17 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Dmac Mobile Developments, LLC | Delicious Tuning |
Customer experience
Fuel
E85 Content
In-app purchases
Fuel
No in-app purchases
E85 Content
No in-app purchases
