240+ iOS apps curated and reviewed
Out of 240+ 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★ (13K) | No | No | Nov 2026 | |
| 3 |  | Free | 4.9★ (410K) | Yes | No | Nov 2026 | |
| 4 |  | Free | 3.5★ (4) | Yes | No | May 2026 | |
| 5 |  | Free | 4.7★ (83) | No | No | Oct 2026 | |
| 6 |  | Free | 4.0★ (1) | No | No | Oct 2026 | |
| 7 |  | Free | — | No | No | May 2026 | |
| 8 |  | Free | — | No | No | Oct 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.
Gain insights into your home's energy consumption and receive personalized recommendations to save money and reduce your carbon footprint. Track usage in real-time, view historical data, and understand your environmental impact.
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.
