What's the best iOS app for tracking daily energy usage and spotting waste?

Constellation Energy Hub is a utility management tool designed for customers of the energy provider to monitor and understand their home's consumption. The app excels at providing near real-time data on electricity and natural gas use, presented in clear charts and daily summaries. For users aiming to reduce waste, the ability to see usage spike after certain appliances run is invaluable; it turns abstract bill amounts into actionable insights. Specific features include hourly usage tracking, projected monthly bill calculations, and customizable alerts for unusual consumption. The app also integrates with select smart thermostats, allowing for direct temperature adjustments to manage heating and cooling costs—a common source of energy waste.

However, its utility is inherently linked to being a Constellation customer, limiting its audience. Some users report that the data can sometimes lag by a few hours, which slightly diminishes its effectiveness for immediate behavioral feedback. The interface, while functional, isn't the most visually modern compared to some standalone smart home platforms. For its intended purpose, though, it consolidates billing, usage, and limited device control into a single portal, making it a practical solution for proactive energy management. Reviews indicate that customers who actively check the app tend to develop better habits, like running dishwashers during off-peak hours, leading to noticeable savings over time.