# PROFLEX Connect vs E85 App

The clearest difference is rating: E85 App at 4.2 against PROFLEX Connect's 2.8. E85 App also leads on review sentiment (50% vs 38%). PROFLEX Connect's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

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

E85 App holds the better App Store score, 4.2 against 2.8. Both are backed by a comparable volume of ratings — 54 and 44 respectively. Written reviews point the same way: 38% of PROFLEX Connect's written reviews are positive against 50% of E85 App's.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | PROFLEX Connect | E85 App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (54 ratings)](https://appshunter.io/ios/app/proflex-connect/id1262287275/reviews) | **[4.2 (44 ratings)](https://appshunter.io/ios/app/e85-app/id1508517906/reviews)** |
| Number of ratings | **54** | 44 |
| Positive reviews | 37.9% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 22 MB | 27 MB |
| Requires iOS | **12.4** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ADVANCED FUEL DYNAMICS](https://appshunter.io/developer/1564136309) | [Ahmed Elsayed](https://appshunter.io/developer/1497438505) |

## What reviewers say

### 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


### 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 PROFLEX Connect free?

PROFLEX Connect 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, PROFLEX Connect or E85 App?

E85 App is rated higher. PROFLEX Connect averages 2.8 out of 5 from 54 ratings, while E85 App averages 4.2 from 44 ratings.

### Do PROFLEX Connect or E85 App have ads?

E85 App shows ads; PROFLEX Connect does not.

### Which is updated more often, PROFLEX Connect or E85 App?

PROFLEX Connect ships an update weekly, and E85 App weekly. Most recently, PROFLEX Connect was updated on October 16, 2026 and E85 App on October 17, 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.*