# E85 Calculator vs e85Cal

The clearest difference is review sentiment: e85Cal at 82% against E85 Calculator's 25%. e85Cal also leads on rating (4.7 vs 1.0) and update cadence (every 4 months vs every 29 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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 1.0. That said, the two scores are not equally well evidenced: e85Cal has 35 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 82% of e85Cal's.

E85 Calculator ships an update every 29 months, e85Cal every 4 months. The most recent releases landed on September 8, 2026 and July 23, 2026 respectively.

## The numbers

| Metric | E85 Calculator | e85Cal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/e85-calculator/id1029273167/reviews) | **[4.7 (35 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews)** |
| Number of ratings | 2 | **35** |
| Positive reviews | 25.0% of reviews | **81.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 3 MB | 15 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sheharyar Irfan](https://appshunter.io/developer/974971911) | [Michael Joe](https://appshunter.io/developer/1132486512) |

## 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


### e85Cal

[App page](https://appshunter.io/ios/app/e85cal/id1470313135)

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.

**Highlights:** 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 %

**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 e85Cal free?

e85Cal is free to download, with no in-app purchases.

### Which has better reviews, E85 Calculator or e85Cal?

e85Cal is rated higher. E85 Calculator averages 1.0 out of 5 from 2 ratings, while e85Cal averages 4.7 from 35 ratings.

### Do E85 Calculator or e85Cal have ads?

Neither E85 Calculator nor e85Cal shows ads.

### Which is updated more often, E85 Calculator or e85Cal?

E85 Calculator ships an update every 29 months, and e85Cal every 4 months. Most recently, E85 Calculator was updated on September 8, 2026 and e85Cal on July 23, 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.*