217+ iOS apps curated and reviewed
iFLEXCSST is the household name in iflexcsst, but it's far from the only option. We track 217+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 4.6★ (5.1K) | Yes | No | Aug 2026 |
| 3 |  | Free | 4.7★ (6.4K) | No | No | Aug 2026 |
| 4 |  | Free | 4.7★ (29K) | No | Yes | Aug 2026 |
| 5 |  | Free | 3.7★ (272) | No | Yes | Jul 2026 |
| 6 |  | Free | 3.7★ (30) | No | No | Jul 2026 |
| 7 |  | Free | 4.6★ (3.5K) | No | No | Aug 2026 |
| 8 |  | Free | 3.2★ (1.2K) | No | No | Aug 2026 |
This app connects users with a wide network of energy providers, simplifying energy procurement. It uses AI for optimized logistics and real-time tracking, supporting sustainable practices and cost savings.
Discover nearby fueling stations for alternative energy sources like electricity, natural gas, and biofuels. View station details, including payment options, access, and specific fuel types, all sourced from a comprehensive U.S. Department of Energy database.
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.
Easily manage your swimming pool's water chemistry by tracking key levels like chlorine and pH. This app calculates the precise amounts of chemicals needed to maintain clear, algae-free water, offering a cost-effective alternative to pool store advice.
This app provides essential data and calculators for oil and gas well calculations. Access key dimensions, strengths, and specifications for tubulars to quickly determine volumes and capacities. Supports multiple unit systems for flexible calculations.
This app provides a centralized platform for managing heavy equipment. It offers tools for finding parts, accessing manuals, diagnosing issues, and tracking machine health. Users can also connect with dealers and access support resources.
This app uses photo capture technology to scan test strips and provide personalized pool water treatment recommendations. It offers features like test result history, a water volume calculator, and maintenance reminders to simplify pool care.
This app offers accredited online trade school courses and certifications for HVAC, plumbing, electrical, and more. Learn at your own pace, on your phone, and earn valuable credentials like EPA 608 and OSHA-10 without traditional school debt.
This utility app helps installers determine the correct size of flexible gas piping for their projects. It calculates the appropriate pipe size based on gas type, tubing length, supply pressure, and flow capacity. Users can also access installation guides and product information.
This application helps users calculate the correct size of flexible gas piping for installations. It supports various sizing methods and gas types, providing accurate results based on selected parameters. Users can also access updated design guides and installation instructions.
This app provides advanced calculation tools and comprehensive data for pipe trade professionals. It streamlines workflows for pipefitters, welders, and steamfitters with features for measurements, fluid dynamics, and material specifications. Designed for efficiency and accuracy, it works offline for on-site use.
This app provides services related to petroleum retail, logistics, and transport. It allows users to access services from a leading company in Saudi Arabia with a history dating back to 1957.
Monitor live prices for crude oil and natural gas benchmarks with interactive charts and real-time news. Track global energy markets, commodities, and key events. Customize your dashboard for a personalized market overview.
This tool quickly determines refrigerant data, including properties, safety groups, GWP, and ODP. It offers intuitive temperature-to-pressure conversion and supports both metric and imperial units. Access detailed information and links to online resources for over 100 refrigerants.
This app calculates the correct fusion pressure for HDPE and Polypropylene pipe jobs. It simplifies the process by selecting your fusion machine and entering pipe details to determine the recommended theoretical gauge pressure.
This app provides HVACR technicians with essential tools and information for field service. It includes refrigerant calculators, troubleshooting guides, product finders, and access to spare parts. Listen to educational podcasts to enhance your knowledge on the go.
This application allows users to order gas cylinder delivery and related accessories directly to their location. It simplifies the process of obtaining essential household gas supplies.
Locate nearby stations offering ethanol-free gasoline. View a list sorted by distance or use the map to find stations anywhere. Track fuel mileage, trip distance, price, and type for each fill-up, assigning records to specific vehicles.
This app provides on-demand fuel delivery for your vehicle at home, work, or any location. Simply request fuel, confirm your order, and relax while your car is filled. It offers a safe, convenient, and time-saving alternative to traditional gas stations.