250+ iOS apps curated and reviewed
Every iPhone needs a few good radiatoroutput apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | Aug 2026 |
| 2 |  | Free was $0.99 | — | No | No | Aug 2026 |
| 3 |  | $4.99 | 1.5★ (2) | No | No | Aug 2026 |
| 4 |  | Free | 4.6★ (1.2K) | Yes | No | Sep 2026 |
| 5 |  | Free | 5.0★ (2) | No | Yes | Aug 2026 |
| 6 |  | $1.99 | 4.8★ (4) | No | No | Aug 2026 |
| 7 |  | Free | 5.0★ (11) | No | No | May 2026 |
| 8 |  | Free | 4.8★ (17K) | No | No | Sep 2026 |
Calculate radiator heat output based on water and air temperatures. Ensure optimal energy efficiency and cost savings by selecting the correct radiator size for any heating system, including those with low water temperatures. Supports metric units and can also calculate cooling output for convectors and fan-coils.
Accurately calculate the heating requirements for any room in your home. This tool supports unlimited rooms, offers precise calculations in Watts and BTU, and features a clean, intuitive design with dark mode support.
Calculate room heat loss, estimate radiator output, and convert between Watts and BTU/h. Analyze potential energy savings from home improvements and determine radiator sizing for optimal heating. Results can be emailed, saved, or exported.
Control your water heater remotely, monitor hot water levels, and receive maintenance alerts. Optimize heating schedules for convenience, comfort, and safety, while also saving on energy costs.
Predict when your evaporative cooler will be effective based on outdoor weather forecasts. Get real-time indoor conditions, future mode recommendations, and estimated cost savings compared to air conditioning. Customize settings for optimal performance and explore global cooler forecasts.
Calculate the ideal radiator size and quantity for any room. Input room details like dimensions, glazing, and wall types to get precise recommendations. Save and email room specifications for later reference or client sharing.
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 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 tool simplifies HVAC/R technician tasks by calculating pressure/temperature relationships, superheat, and subcool. It automatically adjusts for altitude and offers English/Metric units. Easily access favorite refrigerants and supplementary information.
This app provides hands-on learning for HVAC professionals, covering fundamentals, core and advanced systems, and EPA 608 certification prep. It features interactive diagrams, simulators, real-world challenges, and quick reference tools for on-the-job use.
This app offers a comprehensive suite of tools for HVAC technicians. It provides interactive guides, step-by-step repair instructions, and calculators for various HVAC calculations including superheat, subcooling, and duct sizing.
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 tool calculates humidity-related air properties with a calculator-like interface. It supports six key parameters and provides accurate results even under extreme conditions. Ideal for HVAC, cleanrooms, and industrial drying.
This app assists heating engineers and surveyors in collecting property data for heating system installations. It supports heat loss reports for various technologies and includes tools for sound assessments and quick estimations. Data is automatically saved for later review and amendment.
This tool assists with heating system calculations and radiator valve selection. It offers a preset calculator and a dedicated radiator valve selection tool, sharing a common database and calculation engine.
Calculate the heating load for simple rectangular buildings with natural air infiltration. Save calculations for future reference or email them directly from the app.
This app assists HVACR technicians with field service by providing calculations for superheat, subcooling, airflow, and psychrometrics. It supports 28 refrigerants and includes instructions for use.
Estimate the cooling capacity needed for your data center. This tool considers factors like space, occupants, and heat output to help you maintain optimal temperature and humidity. It provides instant results as you update inputs, serving as a guide for system selection.
Control your home's heating and cooling remotely via Wi-Fi. This smart thermostat learns your habits and adapts to outdoor weather for optimal comfort and energy savings. View energy reports and receive customized tips to maximize efficiency.