212+ iOS apps curated and reviewed
The best gaugerun apps on iPhone average 4.5★ across 212+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.
Turn your smartphone into a powerful vehicle monitoring and diagnostic tool. Track engine performance, fuel economy, and instantly diagnose check engine lights. Features advanced dashboards for performance analysis and off-roading.
Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.
Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.
This app connects to your car's OBD2 port via a compatible adapter to read vehicle data. Monitor fuel economy, clear check engine lights, and create custom dashboards for real-time diagnostics and performance tracking.
Plan your routes with a comprehensive map of service locations. Find essential amenities like fuel, food, maintenance, and showers. Manage loyalty points and access 24/7 roadside assistance.
Diagnose your car's engine light issues and monitor real-time performance data. This app allows you to read and clear diagnostic trouble codes, track fuel consumption, and view sensor data. It's a comprehensive tool for understanding your vehicle's health.
Quickly convert between thousands of units with an intelligent search and autocomplete feature. This app offers a streamlined interface, an integrated calculator, and the ability to save favorite conversions. It supports over 6,400 units across 51 categories, making it a comprehensive tool for all your conversion needs.
Easily find and purchase a vast selection of quality car parts and tires from trusted brands. The app offers detailed product information, compatibility checks, competitive pricing, and helpful customer support to ensure a smooth shopping experience.
Instantly view real-time tank levels on your smartphone, eliminating guesswork. Track usage history, receive low-level alerts, and easily request refills from your fuel supplier. Manage multiple tanks and share access with others.
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.
This app helps Kubota equipment owners proactively maintain and care for their machinery. Monitor equipment status, track location, set geofences, and access user manuals and maintenance guides. Keep your equipment running optimally with this digital companion.
This app provides direct access to your BMW or MINI vehicle's systems. Read and clear trouble codes from all control units, monitor real-time sensor values, and control features like exhaust flaps and active sound design. It also supports battery registration, DPF regeneration, and service resets.
Track your vehicle's fuel economy and maintenance history. Set reminders for essential services like oil changes and tire rotations to help you save money. Seamlessly sync your data with the web platform for comprehensive vehicle management.
Transform your phone into a car performance and diagnostic tool. Monitor real-time data, track fuel economy, and troubleshoot engine issues. Includes advanced features for track racing and customizable gauges.
This app acts as a mobile data logger and display for vehicles equipped with a JB4 tuner. It allows users to monitor and log various engine parameters, view data in real-time, and adjust settings for performance tuning.
This app provides foodservice professionals with a mobile platform to find and purchase genuine OEM commercial kitchen parts. Access equipment manuals, utilize smart search tools, and manage your equipment and parts lists for efficient repairs and maintenance.
This app provides an instant mobile refrigerant charge calculator for HVACR applications. It supports various refrigerants and allows users to calculate the correct system charge based on superheat, subcooling, or airflow, along with environmental conditions.
This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.
This app helps users find significant discounts on diesel and unleaded fuel at various stations. It offers route planning with discount optimization and seamless navigation integration. Additionally, it provides robust fleet management tools for controlling spending and managing finances.
This app offers a comprehensive unit and currency converter with a vast array of categories and calculators for everyday needs. It allows users to customize templates, download shared ones, and provides automatic exchange rate updates for 167 world currencies.