E85 Content vs e85Cal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
e85Cal
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.
- Calculate ethanol percentage goal
- Enter gas tank size
- Input standard pump gas ethanol %
- Input ethanol pump gas ethanol %
- Set target ethanol % mix
- Enter current fuel level %
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e85Cal help you calculate your ethanol percentage goal. It fast, simple, and easy to use. Just enter the following information: 1) How big is your gas tank? 2) What is the ethanol % in the standard pump gas? 3) What is the ethanol % in the ethanol pump gas? 4) What is your target ethanol % mix goal? 5) What is your current ethanol % min in your vehicle? 6) What is your current fuel level % in your vehicle? Results will display how many gallons or liters of standard and ethanol gas to pump in your vehicle based on your input.
Screenshots
Verdict
The clearest difference is review sentiment: e85Cal at 83% against E85 Content's 0%. e85Cal also leads on rating (4.7 vs 3.4) and update cadence (every 4 months vs every 17 months). On price, ratings volume, 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.
e85Cal holds the better App Store score, 4.7 against 3.4. Both are backed by a comparable volume of ratings — 12 and 35 respectively. Written reviews point the same way: 0% of E85 Content's written reviews are positive against 83% of e85Cal's.
E85 Content ships an update every 17 months, e85Cal every 4 months. The most recent releases landed on September 22, 2026 and September 26, 2026 respectively.
| Parameter | E85 Content | e85Cal |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (12 ratings) | 4.7 (35 ratings) — better |
| Positive reviews | 0.0% of reviews | 83.3% of reviews — better |
| Number of ratings | 12 | 35 — better |
| Update frequency | Every 17 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 8 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Delicious Tuning | Michael Joe |
Customer experience
E85 Content
e85Cal
In-app purchases
E85 Content
No in-app purchases
e85Cal
No in-app purchases
