東急でんきガス is the official app developed by TOKYU POWER SUPPLY Co.Ltd. This app offers a range of useful features once you log in.

Key Features of the App:

• Check electricity usage (by hour, day, weekday, and month)
• Check gas usage (by month)
• View monthly usage fees and breakdown
• Make changes to various information

In addition, you can accumulate Lemons, the in-app points, which can be used to enter giveaways! Lemons can be earned by paying monthly bills, taking daily steps, checking in, and playing mini-games.

Please note that this app utilizes the iOS HealthKit to access step count data.