224+ iOS apps curated and reviewed
Out of 224+ opsite gas apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (673K) | No | No | Aug 2026 |
| 2 |  | Free | 4.9★ (8.2K) | No | Yes | Jul 2026 |
| 3 |  | Free | 4.2★ (112) | No | No | Jul 2026 |
| 4 |  | Free | 4.8★ (327) | Yes | Yes | Jul 2026 |
| 5 |  | $12.99 | 3.9★ (113) | No | No | Jul 2026 |
| 6 |  | Free | 4.0★ (24) | No | No | Jul 2026 |
| 7 |  | Free | 4.4★ (22) | No | No | Jun 2026 |
| 8 |  | Free | 5.0★ (5) | No | No | Jul 2026 |
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.
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 app helps HVAC/R technicians quickly identify and locate necessary parts for repairs on any equipment, whether for warranty or non-warranty services. It offers advanced tools for troubleshooting, system calculations, and accessing technical documentation, all from the job site.
Prepare for your NATE certification exam with realistic practice tests and AI-powered study guidance. This app covers all NATE specialties, offering detailed explanations and progress tracking to help HVAC technicians and students master essential concepts and pass their exams.
Prepare for your EPA 608 certification with hundreds of up-to-date practice questions. The app offers both a practice mode and a timed test mode with detailed review to help you identify areas needing improvement across Core, Type I, Type II, and Type III exams.
Manage HVAC jobs on the go. View available work in your area, accept and schedule tasks, and submit all necessary documentation and orders directly from the field. Get paid faster by streamlining your on-site operations.
Manage steam traps and digital domestic hot water systems with this native Apple application. Perform surveys offline, connect directly to compatible devices via Bluetooth, and sync data to the cloud when a network is available.
This application helps HVAC technicians diagnose and repair systems quickly and accurately. It offers robust diagnostic tools to identify problems faster, leading to fewer callbacks and more satisfied customers. It supports various HVAC systems, making it an all-in-one solution for professionals.
Monitor and control your TAP kiln remotely from your mobile device. Create, edit, and view firing schedules, modify settings, and receive real-time updates and notifications. Review detailed logs and get maintenance alerts to ensure optimal kiln performance.
Streamline the process of commissioning Viessmann boilers with this user-friendly mobile application. It guides trained professionals through each step, ensuring a safe, efficient, and complete installation.
This app connects to specialized testing tools via Bluetooth to display real-time measurements. It calculates and presents key refrigerant, air, and vacuum parameters, allowing users to monitor critical system data and customize their view for efficiency.
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.
This app displays live HVAC/R pressure, temperature, and vacuum readings from compatible hardware. It offers system analysis, data logging, and sharing capabilities for various applications.
This comprehensive app helps gas, oil, and plumbing professionals streamline their business operations. It allows for the creation of industry-specific certificates, issuance of quotes and invoices, and efficient job scheduling. Manage your team, customers, and finances from any device, anywhere, saving time and boosting revenue.
Access a vast database of HVAC models, manuals, and part lists to speed up your work. Utilize an AI-powered troubleshooting tool or connect with experienced technicians for real-time support.
Manage and monitor your building's heating systems remotely. Optimize comfort, reduce costs, and receive instant alerts for critical issues. Track savings and resolve tenant complaints efficiently.
This app assists HVAC technicians in identifying necessary parts for repairs and locating nearby distributors. It streamlines job management by recording parts used and provides access to technical literature and training resources.
This app calculates HVAC/R system performance and aids in troubleshooting. It offers a wide selection of refrigerants and equipment profiling for various common systems.
This app provides a comprehensive HVAC/R diagnostic solution by integrating with specialized hardware. It allows users to view live data, create and share service reports, and perform detailed system analysis for pressure, temperature, evacuation, and more.
This platform offers subscription-based training for skilled trades, creating job-ready workers and upskilling existing ones. Access hundreds of hours of expert-led content in HVAC, plumbing, electrical, and more, with on-demand assessments to track progress.