# PROFLEX Connect — Advanced Fuel Dynamics > Real-time flex fuel system monitoring and E85 station finder. (iPhone/iPad app by ADVANCED FUEL DYNAMICS.) - Source: https://appshunter.io/ios/app/proflex-connect/id1262287275 (this page in markdown: same URL + `.md`) - Developer: [ADVANCED FUEL DYNAMICS](https://appshunter.io/developer/1564136309) - Category: Utilities, Reference - Price: Free - Rating: 2.80/5 from 54 App Store ratings · 28 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 22 MB - Languages: American English - Released: 2017-08-04 - Data updated: 2026-07-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/proflex-connect/id1262287275/reviews.md ## What is PROFLEX Connect? PROFLEX Commander is a bolt on performance flex fuel system allowing your vehicle to make big power with ethanol right out of the box. No tuning needed. The PROFLEX Commander and FLEXLINK family of devices allow you to run any blend of gas and E85 at anytime, while always delivering the exact fuel ratio to your vehicle. The PROFLEX Connect app allows you to view your device settings in real-time, and even help you find a nearby e85 station. ## Key features - Real-time device setting display - E85 station locator - Fuel ratio monitoring - Performance flex fuel system integration ## Recent user reviews (10 of 28) All indexed reviews: https://appshunter.io/ios/app/proflex-connect/id1262287275/reviews.md ### 2/5 — App connection *2026-06-10, version 2.5.6* Device itself great app 🚮 ### 4/5 — Is that it? *2024-10-04, version 2.5.6* Absolutely love the product. The app on the other hand, is just bland. Seems like it was thrown together in about 20 minutes. I’d think for paying $1,000 USD they would at least put some effort into the app. The one and only thing is just seeing the ethanol content. Am I missing anything? Is there more? ### 1/5 — This app it TRASH *2024-02-08, version 2.5.1* Garbage app never connects even though in blutooth settings will clearly show DUAL-SPP available to connect.....this app is GARBAGE 🚮 ### 2/5 — Issues after updates *2023-08-15, version 2.5.1* After the recent updates, the app will lose connection and you have no information. Was told it could be a bad ground. This is not the case. It all started, or stopped I should say, after the updates. Same issues with android as well, not just iOS. With no way to monitor, I pulled the system from the vehicle. Worked for about a year+. ### 3/5 — Update issue *2023-05-20, version 2.5.0* After update today. It connects after a while. Shows status of everything good. Then nothing. No percentage or even a button to push and see it. ### 4/5 — Great sensor *2023-05-18, version 2.4.2* Had an issue with connecting at first but figured it out after I went in and enabled location in settings!! The app settings do not work so I had to manually do it ### 1/5 — Can’t connect still after update *2023-04-27, version 2.4.0* Still won’t connect to the module. ### 1/5 — Won’t connect anymore *2023-04-26, version 2.3.7* My iphone no longe detects the device via Bluetooth. Used to work perfect but now just keeps searching and doesn’t find the device ### 1/5 — App not connecting to device *2023-04-26, version 2.3.7* After installing this today, the app is not connecting to the device. ### 3/5 — Cannot Connect *2023-04-25, version 2.3.7* After the update I can seem to connect to my module. Seems based on the past reviews this is a issue for more than me. ## Frequently asked questions about PROFLEX Connect ### What does the PROFLEX Connect app do? The PROFLEX Connect app allows you to view your PROFLEX Commander device settings in real-time. It also helps you locate nearby E85 fuel stations, making it easier to utilize ethanol blends for your vehicle. ### Does this app require tuning? No, the PROFLEX Commander system is designed as a bolt-on performance flex fuel system that does not require tuning out of the box. The app complements this by providing real-time monitoring and station finding capabilities. ### Can I run any blend of gas and E85 with this system? Yes, the PROFLEX Commander and FLEXLINK family of devices allow you to run any blend of gasoline and E85 at any time. The system continuously delivers the exact fuel ratio your vehicle needs. ### Is the PROFLEX Connect app free to use? Yes, the PROFLEX Connect app is available for free. It does not have in-app purchases or advertisements, providing a free utility for users of the PROFLEX Commander system. ### What are the main benefits of using PROFLEX Connect? The main benefits include real-time monitoring of your flex fuel system's settings and fuel ratio, as well as the convenience of finding nearby E85 stations. This allows for optimized vehicle performance with ethanol fuels. ## Version history (last 5 releases) ### 2.5.6 — 2024-06-20 Increased in initial timeout to improve connection performance Added support for more devices ### 2.5.3 — 2024-03-07 Connect faster and more reliably with improved scanning functionality Enhanced diagnostic messages help users verify their installation Improved theming for light and dark environments ### 2.5.1 — 2023-05-21 improved slide controls minor bug fixes ### 2.5.0 — 2023-05-20 Added the ability to edit the device label to a friendly name. - Just connect, then click the pencil icon. - Allows you to tell between different devices and phones Added visualization of Fuel Temp for those devices that support it Improved the prompts if bluetooth is temporarily disabled Added raw data to the diagnostic report, which will help determine installation errors or hardware faults Improved the app blur/focus functionality to reconnect General UI improvements ### 2.4.2 — 2023-05-04 Improved the stability of the auto-connect feature Extended the initial scan to 6 seconds to reduce number of second scan requests Reduced second scan length to 10 seconds to reduce waiting time for second scan Changed third and higher scans to 30 seconds Moved diagnostic message on device list to third scan Added diagnostic report feature to the settings screen so it doesn't require a scan or connect timeout ## Apps similar to PROFLEX Connect | App | Rating | Price | Category | | --- | --- | --- | --- | | [TopOff](https://appshunter.io/ios/app/topoff/id6746463568) | — | Free | Utilities | | [E85 Content](https://appshunter.io/ios/app/e85-content/id1252861855) | 3.4 (12) | Free | Utilities | | [E85 App](https://appshunter.io/ios/app/e85-app/id1508517906) | 3.1 (17) | Free | Utilities | | [Edge EZX](https://appshunter.io/ios/app/edge-ezx/id1616169026) | 3.0 (10) | Free | Utilities | | [Gremlin Dealer Utility](https://appshunter.io/ios/app/gremlin-dealer-utility/id1447969704) | 5.0 (1) | Free | Utilities | | [Mullen Commercial Pulse Driver](https://appshunter.io/ios/app/mullen-commercial-pulse-driver/id6449077382) | 4.8 (35) | Free | Utilities | ## Related topics [carbon performance](https://appshunter.io/ios/topics/carbon-performance) · [flex fuel](https://appshunter.io/ios/topics/flex-fuel) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-03.*