241+ iOS apps curated and reviewed
Out of 241+ energy efficiency calculator 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 | 5.0★ (1) | No | No | May 2026 |
| 2 |  | Free | 4.9★ (409K) | Yes | No | Aug 2026 |
| 3 |  | Free | 4.8★ (12K) | No | No | Aug 2026 |
| 4 |  | Free | 4.4★ (65) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.7★ (81) | No | No | Aug 2026 |
| 6 |  | Free | 3.5★ (4) | Yes | No | May 2026 |
| 7 |  | Free | — | No | No | May 2026 |
| 8 |  | Free | — | No | No | May 2026 |
An interactive tool designed to teach users about energy efficiency through engaging games and activities. Users can estimate energy costs for home appliances and learn how behavior changes can impact electricity usage and savings. It's geared towards students, parents, and teachers.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
This app offers detailed analysis of your home's energy consumption, providing insights and recommendations to help you save money, conserve energy, and reduce your carbon footprint. Track your usage in real-time and over time with various comparison options.
Easily calculate the energy consumption and operating costs of electrical devices. Track daily, monthly, and yearly usage, analyze costs, and estimate carbon emissions to optimize power usage and save money.
Calculate the annual cost and energy consumption of your electrical devices. Determine how long it will take for energy-saving appliances to become profitable. This tool helps you understand your energy usage and make informed decisions.
Calculate household electricity usage and costs for various appliances. Track consumption by hour, day, month, or year to identify high-usage devices and save on electricity bills.
Estimate and assess potential energy savings from high-efficiency drive and motor solutions. Compare customized scenarios, view graphic overviews of savings, and receive detailed reports via email. Connect directly with experts for further consultation.
Estimate your annual electricity costs easily. Input power consumption, energy price, and usage time to get precise daily and annual cost calculations. Discover potential savings by switching to more efficient appliances.
This app offers a comprehensive suite of calculators for everyday tasks and advanced mathematical needs. It includes tools for finance, unit conversion, health, and time calculations, all within a user-friendly interface.
Earn cash back and reduce your electricity bill by learning when and how to cut energy usage. This free app helps you create new energy-saving habits and understand your consumption. Participate in events to save electricity and get paid, while also reducing your carbon footprint.
This app helps you accurately calculate power outage durations and battery performance. It factors in real-world conditions like battery discharge, inverter efficiency, and device consumption to provide realistic estimates for runtime and charging.
Track your household electricity expenses with this app. You can list all your devices to see daily, monthly, or yearly costs, or check the cost of individual appliances.
This app provides a straightforward calculator designed for the electrical industry, offering tools for power and lighting calculations. It helps users determine generator and UPS requirements, convert units, and calculate fuel consumption. Suitable for both professionals and casual users needing electrical calculations.
Easily calculate your vehicle's gas mileage on a single screen. Track your fuel efficiency over time with historical data and quick comparison features. Ideal for anyone needing a straightforward way to monitor MPG.
This tool assists businesses in assessing energy usage and cost reduction through equipment improvements or new system investments. It calculates potential annual savings and CO2 emission reductions, benchmarks sites against best practices, and generates a personalized PDF report.
