E85 Calculator vs E85 Content
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E85 Calculator
This application helps performance enthusiasts and flex-fuel vehicle owners precisely calculate the amounts of E85 and gasoline needed for specific ethanol percentages or octane ratings. It offers both simple and advanced modes for fuel mixing calculations, supporting metric and imperial units.
- Calculate E85 and gasoline amounts
- Target specific ethanol percentages
- Calculate by desired octane rating
- Metric and imperial unit support
- Real-time calculations
- Easy and advanced modes
Read full descriptionHide full description
E85 Calculator is your essential tool for precision fuel mixing, designed for performance enthusiasts and flex-fuel vehicle owners. KEY FEATURES: - Calculate exact amounts of E85 and gasoline needed - Target specific ethanol percentages (E30, E50, E70, E85) - Calculate by desired octane rating - Support for both metric (liters) and imperial (gallons) units - Real-time calculations with instant updates - Easy and advanced modes for different user needs EASY MODE: - Quick presets for common ethanol targets - Simple tank size selection - Intuitive slider controls for current fuel level - Basic inputs for everyday use ADVANCED MODE: - Precise control over fuel properties - Custom octane ratings input - Detailed ethanol content adjustment - Advanced fuel mixing calculations Perfect for: - Flex-fuel vehicle owners - Performance car enthusiasts - Race car tuners - Anyone mixing E85 with regular gas Get accurate calculations every time and achieve the perfect fuel blend for your vehicle's needs. Whether you're targeting a specific ethanol percentage or octane rating, E85 Calculator provides the precise measurements you need. Safe, simple, and accurate - take the guesswork out of fuel mixing with E85 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
Read full descriptionHide full description
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 rating: E85 Content at 3.4 against E85 Calculator's 1.0. E85 Content also leads on ratings volume (12 vs 2) and iOS requirement (12.0 vs 16.0). E85 Calculator's advantage is review sentiment (25% vs 0%). On price, update cadence, ads and in-app purchases 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 1.0. That said, the two scores are not equally well evidenced: E85 Content has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 25% of E85 Calculator'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.
E85 Calculator ships an update every 29 months, E85 Content every 17 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.
| Parameter | E85 Calculator | E85 Content |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 3.4 (12 ratings) — better |
| Positive reviews | 25.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 2 | 12 — better |
| Update frequency | Every 29 months | Every 17 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Sheharyar Irfan | Delicious Tuning |
Customer experience
E85 Calculator
E85 Content
In-app purchases
E85 Calculator
No in-app purchases
E85 Content
No in-app purchases
