This utility app connects to specific hardware units via Bluetooth to display real-time ethanol content and temperature. It provides essential data for users monitoring fuel mixtures.


206+ iOS apps curated and reviewed
The best ktuner flexfuel apps on iPhone average 4.6★ across 206+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.


This utility app connects to specific hardware units via Bluetooth to display real-time ethanol content and temperature. It provides essential data for users monitoring fuel mixtures.






Pay for fuel directly from your car and earn rewards on purchases. Access exclusive offers, track loyalty programs, and find participating stations. Save on gas with points redeemable for discounts.






Manage your Volkswagen vehicle with connected services. Schedule maintenance, find dealers, and access remote features like starting the engine or locking doors. Subscription plans unlock advanced capabilities for newer models.


This app simplifies car ownership by consolidating parking, car washes, mileage tracking, gas cashback, and EV charging into a single platform. It also offers roadside assistance and a high-yield savings wallet for your rewards.


Find the cheapest fuel prices in your area and earn rewards for saving money on gas. This app helps you locate stations, compare prices, and redeem points for discounts through various activities like snapping receipts and playing games.


Save money on fuel with a free loyalty program. Earn rewards on purchases, dining, and travel to get discounts on every fill-up at participating stations. Track your savings and find nearby locations.


Easily locate, use, and pay for EV charging stations. This app provides real-time availability, station details, and seamless charging initiation. Manage both public and home charging in one place.


This app helps company vehicle drivers manage fleet tasks efficiently. It allows for mileage tracking, finding service vendors and gas stations, accessing service cards, and managing vehicle registration. Drivers can also acknowledge company policies and use Face ID for quick login.


This comprehensive trucking app offers essential tools to streamline business operations. Find fuel savings, upload invoices for quick payment, and discover and book loads from an exclusive board. It simplifies fleet management, load entry, and invoicing.


Earn cash back on everyday purchases like gas, groceries, and dining. Simply claim offers in the app, pay as usual, and get rewards directly to your bank account or as gift cards. Save money on essential spending and enjoy more of what you love.


Pay for fuel conveniently and securely from your driver's seat at participating gas stations. Save money with exclusive promotions and track your loyalty points. Find stations, view prices, and manage your transaction history all within the app.


Control your vehicle remotely, monitor its status, and access important information. Schedule maintenance and get assistance when you need it, all from your smartphone.


This application provides a convenient and secure way to manage your mobile account and services. It offers free data usage on the MPT network, access to exclusive club memberships, and daily chances to win prizes. Users can easily top up, transfer funds, and access special offers and packages.


Save money on fuel and in-store purchases with exclusive discounts and a rewards program. Order food and drinks ahead for quick pickup or delivery. Earn points on every purchase to unlock more savings.


Control and monitor your Tesla vehicle and energy products remotely. Manage charging, climate control, security, and navigation. Also track solar energy production and battery usage.


This app empowers carriers with instant load bookings, upfront pricing, and detailed facility information. It offers tools to manage your business, including POD submission and driver management, making it a comprehensive solution for every haul.


Access exclusive deals, earn rewards points, and enjoy convenient in-app payments at your local convenience store. Get insider perks, birthday surprises, and save on everyday essentials and fuel.


Manage your vehicle remotely with this app. Track fuel, tire pressure, and battery levels. Locate your car in parking lots, find charging stations, and lock/unlock doors from your smartphone.


Manage fleet maintenance, fuel, and inspections from your mobile device. This app allows drivers, technicians, and managers to collaborate on critical tasks, report issues, and access vehicle information on the go. Stay organized and productive with streamlined fleet operations.


Easily track your car's mileage, fuel economy, and maintenance expenses. This app offers fast data entry, comprehensive statistics, and international support for various units. It allows unlimited data saving and seamless upgrades to a full version.