# E85 Calculator vs E85 App

The clearest difference is rating: E85 App at 4.0 against E85 Calculator's 1.0. E85 App also leads on update cadence (every 9 days vs every 29 months) and review sentiment (49% vs 25%). E85 Calculator's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. E85 App sells 3 in-app purchases, starting at $2.99 per month. E85 Calculator asks for nothing beyond the download.

E85 App holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: E85 App has 33 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 25% of E85 Calculator's written reviews are positive against 49% of E85 App's.

E85 Calculator ships an update every 29 months, E85 App every 9 days. The most recent releases landed on September 8, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | E85 Calculator | E85 App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/e85-calculator/id1029273167/reviews) | **[4.0 (33 ratings)](https://appshunter.io/ios/app/e85-app/id1508517906/reviews)** |
| Number of ratings | 2 | **33** |
| Positive reviews | 25.0% of reviews | **48.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 29 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 27 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sheharyar Irfan](https://appshunter.io/developer/974971911) | [Ahmed Elsayed](https://appshunter.io/developer/1497438505) |

## 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 App

[App page](https://appshunter.io/ios/app/e85-app/id1508517906)

Find E85 gas stations nearby and calculate E85 fuel mixtures. This tool is designed for car enthusiasts who use or are interested in E85 fuel.

**Highlights:** E85 gas station locator, E85 mix calculator, Location-based search, Fuel mixture calculations

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| E85 Pro Monthly | $2.99 | per month |
| E85 Pro Yearly | $19.99 | per year |
| Remove Ads | $5.99 | one-time |


## Frequently asked questions

### Is E85 Calculator free?

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

### Is E85 App free?

E85 App is free to download, with in-app purchases available.

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

E85 App is rated higher. E85 Calculator averages 1.0 out of 5 from 2 ratings, while E85 App averages 4.0 from 33 ratings.

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

E85 App shows ads; E85 Calculator does not.

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

E85 Calculator ships an update every 29 months, and E85 App every 9 days. Most recently, E85 Calculator was updated on September 8, 2026 and E85 App on September 25, 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.*