228+ iOS apps curated and reviewed
The best fsi oil services apps on iPhone average 4.5★ across 228+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.
Find quick and convenient oil change locations near you with top-quality service at Valvoline Instant Oil Change. Conveniently schedule appointments and track maintenance history.
Stay updated on live crude oil prices and commodities market trends with real-time data and analysis. Track price changes, set alerts, and make informed decisions on the go.
This application provides easy, responsive, and dependable heating and cooling services, offering 24/7 emergency repair, flexible pricing plans, and environmentally friendly fuel options. With a focus on customer care, it invites users to experience reliable and convenient services, allowing them to focus on their lives.
Control your home comfort with the Sensi Smart Thermostat app. Easily adjust temperature settings, create schedules, receive service reminders, and connect to various smart home platforms for seamless control. Control your home comfort from anywhere with ease.
This application makes ordering heating oil easy and convenient, allowing users to check low prices, select delivery amounts, and confirm delivery dates with just a few taps. With features like order history, account management, and support for multiple locations, users can take control of their heating oil delivery and enjoy a hassle-free experience.
This application provides a guide for car owners to find and perform oil service reset procedures for their vehicles, covering models from 1982 to 2022. By selecting their vehicle's year, make, and model, users can access step-by-step instructions to reset their oil change indicator light after an oil change.
Stay up-to-date with the latest global energy news through OilPrice, your go-to source for all things related to the energy industry. Get real-time updates, expert analysis, and in-depth coverage right at your fingertips. Download now for all your energy news needs!
Discover a powerful HVAC tool with access to a vast database of 500,000 HVAC models for manuals and part lists, troubleshooting support from MasterMechanic A.I., and live assistance from veteran technicians. Join the largest HVAC community to elevate your industry knowledge and skills today.
This application helps users manage their vehicle's oil maintenance needs and purchase high-quality synthetic oil products, offering features such as maintenance tracking, product browsing, and expert support. Download the app to streamline your oil change process, access wholesale pricing, and enjoy exclusive benefits for a smoother engine performance.
Manage your home remotely with ease using Trane Home. Control and monitor your HVAC system, locks, lights, cameras, and more from your iPhone. Stay connected and simplify your home automation experience.
SkillCat is a HVAC training app that offers interactive courses, simulations, and quizzes to help users learn and master HVAC concepts. Gain expertise in heating, ventilation, and air conditioning through engaging lessons and hands-on practice. Start your HVAC learning journey today!
An application that helps HVAC technicians diagnose system problems efficiently by providing data aggregation tools and on-the-job education, leading to increased productivity. Connect, perform, and prosper with this powerful tool for improving HVAC maintenance and troubleshooting.
This oil company offers a unique and positive experience by providing high-quality products and services at the best prices, achieved through efficient business practices and a dedicated team. By prioritizing customer satisfaction, they aim to set themselves apart from other companies and deliver exceptional results.
Easily manage your power usage with our app using just your fingerprint for secure access. Stay updated on outages, receive bill notifications, track energy use, and manage your account seamlessly. Experience instant convenience at your fingertips - download now!
Safely plan outdoor work activities by monitoring real-time heat index and receiving safety recommendations with this app. Stay informed about heat-related risks, access hourly forecasts, and learn first aid for heat-related illnesses. Stay safe in the heat - download now!
Quickly determine refrigerant data, including properties and environmental impact, with an intuitive app featuring over 100 refrigerants. Easily convert temperature to pressure, access detailed information, and customize settings for efficient use. Start optimizing your refrigeration processes now.
This application helps you manage your heating needs and daily services from your phone, allowing you to compare heating oil prices, order heating oil, book local services, and get food delivered. With a range of features and trusted services at your fingertips, you can save time and effort, and make everyday life more comfortable and connected.