# PROFLEX Connect vs eFlexApp

The clearest difference is rating: eFlexApp at 3.4 against PROFLEX Connect's 2.8. PROFLEX Connect's advantage is update cadence (weekly vs monthly) and ratings volume (54 vs 8). On price, review sentiment, 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.

eFlexApp holds the better App Store score, 3.4 against 2.8. That said, the two scores are not equally well evidenced: PROFLEX Connect has 54 ratings behind it against 8, so its average is the more settled of the two. Written reviews complicate that: 39% of PROFLEX Connect's written reviews are positive against 33% of eFlexApp's, so the app with the better star average is not the one people write more warmly about.

PROFLEX Connect ships an update weekly, eFlexApp monthly. The most recent releases landed on September 18, 2026 and July 9, 2026 respectively.

## The numbers

| Metric | PROFLEX Connect | eFlexApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (54 ratings)](https://appshunter.io/ios/app/proflex-connect/id1262287275/reviews) | **[3.4 (8 ratings)](https://appshunter.io/ios/app/eflexapp/id1526677191/reviews)** |
| Number of ratings | **54** | 8 |
| Positive reviews | **39.3% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | Free |
| Size | 22 MB | 58 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ADVANCED FUEL DYNAMICS](https://appshunter.io/developer/1564136309) | [StepOne Tech Ltd](https://appshunter.io/developer/1388519134) |

## 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


### eFlexApp

[App page](https://appshunter.io/ios/app/eflexapp/id1526677191)

Monitor your eFlexFuel device in real-time, with features varying by device version. Adjust settings like language, temperature units, and theme. Track ethanol content, engine temperature, and more, depending on your specific eFlexFuel model.

**Highlights:** Real-time device monitoring, Adjustable settings (language, temp, theme), Ethanol content tracking, Engine temperature monitoring, Device status checks, Bluetooth connectivity

**In-app purchases:** none


## Frequently asked questions

### Is PROFLEX Connect free?

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

### Is eFlexApp free?

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

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

eFlexApp is rated higher. PROFLEX Connect averages 2.8 out of 5 from 54 ratings, while eFlexApp averages 3.4 from 8 ratings.

### Do PROFLEX Connect or eFlexApp have ads?

Neither PROFLEX Connect nor eFlexApp shows ads.

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

PROFLEX Connect ships an update weekly, and eFlexApp monthly. Most recently, PROFLEX Connect was updated on September 18, 2026 and eFlexApp on July 9, 2026.

---

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