# E85 Calculator vs E85 Content

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.

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.

## The numbers

| Metric | E85 Calculator | E85 Content |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/e85-calculator/id1029273167/reviews) | **[3.4 (12 ratings)](https://appshunter.io/ios/app/e85-content/id1252861855/reviews)** |
| Number of ratings | 2 | **12** |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 17 months** |
| Monetization | Free | Free |
| Size | 3 MB | 8 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sheharyar Irfan](https://appshunter.io/developer/974971911) | [Delicious Tuning](https://appshunter.io/developer/1252861854) |

## What reviewers say

### E85 Calculator

[App page](https://appshunter.io/ios/app/e85-calculator/id1029273167)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### E85 Content

[App page](https://appshunter.io/ios/app/e85-content/id1252861855)

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.

**Highlights:** Real-time ethanol content display, Real-time fuel pressure display, Requires Flex Fuel Bluetooth plugin kit, Compatible with various vehicles, Ongoing development and expansion

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E85 Calculator free?

E85 Calculator is free to download, with no in-app purchases.

### Is E85 Content free?

E85 Content is free to download, with no in-app purchases.

### Which has better reviews, E85 Calculator or E85 Content?

E85 Content is rated higher. E85 Calculator averages 1.0 out of 5 from 2 ratings, while E85 Content averages 3.4 from 12 ratings.

### Do E85 Calculator or E85 Content have ads?

Neither E85 Calculator nor E85 Content shows ads.

### Which is updated more often, E85 Calculator or E85 Content?

E85 Calculator ships an update every 29 months, and E85 Content every 17 months. Most recently, E85 Calculator was updated on September 24, 2026 and E85 Content on September 22, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*