# Fuel vs PROFLEX Connect

The clearest difference is update cadence: PROFLEX Connect at weekly against Fuel's every 10 months. Fuel's advantage is rating (3.1 vs 2.8) and review sentiment (50% vs 38%). 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.

Fuel holds the better App Store score, 3.1 against 2.8. Both are backed by a comparable volume of ratings — 34 and 56 respectively. Written reviews point the same way: 50% of Fuel's written reviews are positive against 38% of PROFLEX Connect's.

Fuel ships an update every 10 months, PROFLEX Connect weekly. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Fuel | PROFLEX Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (34 ratings)](https://appshunter.io/ios/app/fuel-it-eca/id1004246767/reviews)** | [2.8 (56 ratings)](https://appshunter.io/ios/app/proflex-connect/id1262287275/reviews) |
| Number of ratings | 34 | **56** |
| Positive reviews | **50.0% of reviews** | 37.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Weekly** |
| Monetization | Free | Free |
| Size | 20 MB | 22 MB |
| Requires iOS | 13.4 | **12.4** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dmac Mobile Developments, LLC](https://appshunter.io/developer/372235786) | [ADVANCED FUEL DYNAMICS](https://appshunter.io/developer/1564136309) |

## 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


### PROFLEX Connect

[App page](https://appshunter.io/ios/app/proflex-connect/id1262287275)

This app allows you to monitor your vehicle's fuel system performance in real-time. It displays device settings and helps locate nearby E85 fuel stations for convenient ethanol blending.

**Highlights:** Real-time device setting display, E85 station locator, Fuel ratio monitoring, Performance flex fuel system integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fuel free?

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

### Is PROFLEX Connect free?

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

### Which has better reviews, Fuel or PROFLEX Connect?

Fuel is rated higher. Fuel averages 3.1 out of 5 from 34 ratings, while PROFLEX Connect averages 2.8 from 56 ratings.

### Do Fuel or PROFLEX Connect have ads?

Neither Fuel nor PROFLEX Connect shows ads.

### Which is updated more often, Fuel or PROFLEX Connect?

Fuel ships an update every 10 months, and PROFLEX Connect weekly. Most recently, Fuel was updated on October 29, 2026 and PROFLEX Connect on October 21, 2026.

---

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