# Fuel vs APE X85

The clearest difference is review sentiment: APE X85 at 100% against Fuel's 50%. APE X85 also leads on rating (4.3 vs 3.1) and iOS requirement (11.0 vs 13.4). Fuel's advantage is ratings volume (34 vs 7). 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.

APE X85 holds the better App Store score, 4.3 against 3.1. Both are backed by a comparable volume of ratings — 34 and 7 respectively. Written reviews point the same way: 50% of Fuel's written reviews are positive against 100% of APE X85's.

Fuel ships an update every 10 months, APE X85 every 8 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Fuel | APE X85 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (34 ratings)](https://appshunter.io/ios/app/fuel-it-eca/id1004246767/reviews) | **[4.3 (7 ratings)](https://appshunter.io/ios/app/ape-x85/id1435712370/reviews)** |
| Number of ratings | **34** | 7 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 8 months** |
| Monetization | Free | Free |
| Size | 20 MB | 25 MB |
| Requires iOS | 13.4 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [AlternativePerformanceEng](https://appshunter.io/developer/1435712369) |

## 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


### APE X85

[App page](https://appshunter.io/ios/app/ape-x85/id1435712370)

This application enables users to monitor and configure a Flex Fuel Conversion module for gasoline engines, allowing them to run E85 fuel. It offers advanced tuning for ethanol delivery and includes a data logger. The app is also compatible with the APE Multi-gauge module.

**Highlights:** Flex Fuel conversion module monitoring, E85 fuel compatibility, Advanced ethanol delivery tuning, RPM range configuration, Built-in data logger, APE Multi-gauge module support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fuel free?

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

### Is APE X85 free?

APE X85 is free to download, with no in-app purchases.

### Which has better reviews, Fuel or APE X85?

APE X85 is rated higher. Fuel averages 3.1 out of 5 from 34 ratings, while APE X85 averages 4.3 from 7 ratings.

### Do Fuel or APE X85 have ads?

Neither Fuel nor APE X85 shows ads.

### Which is updated more often, Fuel or APE X85?

Fuel ships an update every 10 months, and APE X85 every 8 months. Most recently, Fuel was updated on November 6, 2026 and APE X85 on November 2, 2026.

---

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