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.






246+ iOS apps curated and reviewed
Out of 246+ energy cost calculator apps on iOS, 16 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 | 4.4★ (65) | Yes | No | May 2026 | |
| 2 | Free | 4.7★ (74) | No | No | Jul 2026 | |
| 3 | Free | 4.8★ (11K) | No | No | Aug 2026 | |
| 4 | Free | 3.5★ (4) | Yes | No | May 2026 | |
| 5 | $2.99 | — | No | No | May 2026 | |
| 6 | Free | — | No | No | Jul 2026 | |
| 7 | Free | — | — | No | Jul 2026 | |
| 8 | $0.99 was $1.99 | — | No | No | May 2026 |






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.






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.


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.














Calculate and compare driving expenses for gasoline, diesel, and electric vehicles. Input prices and distances to instantly view trip costs and essential metrics for daily planning and quick comparisons.


Manage your energy accounts conveniently from your mobile device. View and pay bills, report outages, track energy usage, and access customer support. Save money with energy-saving offers.


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 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.




Effortlessly reduce your electricity expenses by up to $593 annually. This service analyzes your usage, compares live energy rates, and automatically switches you to a cheaper provider without any effort on your part. It continuously monitors plans to ensure you always have the best available rate.


Manage your energy account on the go. Monitor usage, pay bills, renew plans, and access account information. Features vary by market for Texas and Northeast/Midwest customers.