# Fuel vs e85Cal

The clearest difference is rating: e85Cal at 4.7 against Fuel's 3.1. e85Cal also leads on review sentiment (83% vs 50%) and update cadence (every 4 months vs every 10 months). On price, ratings volume, 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.

e85Cal holds the better App Store score, 4.7 against 3.1. Both are backed by a comparable volume of ratings — 33 and 35 respectively. Written reviews point the same way: 50% of Fuel's written reviews are positive against 83% of e85Cal's.

Fuel ships an update every 10 months, e85Cal every 4 months. The most recent releases landed on August 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Fuel | e85Cal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (33 ratings)](https://appshunter.io/ios/app/fuel-it-eca/id1004246767/reviews) | **[4.7 (35 ratings)](https://appshunter.io/ios/app/e85cal/id1470313135/reviews)** |
| Number of ratings | 33 | **35** |
| Positive reviews | 50.0% of reviews | **83.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 4 months** |
| Monetization | Free | Free |
| Size | 20 MB | 15 MB |
| Requires iOS | 13.4 | **12.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [Michael Joe](https://appshunter.io/developer/1132486512) |

## What reviewers say

### Fuel

[App page](https://appshunter.io/ios/app/fuel-it-eca/id1004246767)

Monitor your vehicle's ethanol concentration and fuel temperature in real-time. This app wirelessly connects to a compatible Bluetooth module, freeing up your device's port for simultaneous charging and monitoring. It includes an ethanol fill-up concentration calculator and customizable display views.

**Highlights:** Real-time ethanol concentration monitoring, Real-time fuel temperature monitoring, Wireless Bluetooth connectivity, Ethanol fill-up concentration calculator, Fahrenheit or Celsius display options, Two display views

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

**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 Fuel free?

Fuel 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, Fuel or e85Cal?

e85Cal is rated higher. Fuel averages 3.1 out of 5 from 33 ratings, while e85Cal averages 4.7 from 35 ratings.

### Do Fuel or e85Cal have ads?

Neither Fuel nor e85Cal shows ads.

### Which is updated more often, Fuel or e85Cal?

Fuel ships an update every 10 months, and e85Cal every 4 months. Most recently, Fuel was updated on August 27, 2026 and e85Cal on September 26, 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.*