242+ iOS apps curated and reviewed
Out of 242+ energy efficiency calculator apps on iOS, 20 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 | 4.8★ (12K) | No | No | Sep 2026 | |
| 3 |  | Free | 4.9★ (409K) | Yes | No | Sep 2026 | |
| 4 |  | Free | — | Yes | No | Aug 2026 | |
| 5 |  | Free | 3.5★ (4) | Yes | No | May 2026 | |
| 6 |  | Free | 4.4★ (65) | Yes | No | Aug 2026 | |
| 7 |  | Free | 4.7★ (81) | No | No | Sep 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 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.
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.
