Easily set up and configure your Ofen and Ofen Pro heaters. Connect your device via Bluetooth to your local WiFi and manage your mining pool settings with just a few taps.





195+ iOS apps curated and reviewed
With an average user rating of 3.8β , the 21energy category is one of the App Store's strongest. Browse all 195+ apps we track, sorted so the most loved ones surface first.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | β | No | No | May 2026 | |
| 2 | Free | 4.7β (12K) | No | No | Aug 2026 | |
| 3 | Free | 4.7β (7.6K) | No | No | Aug 2026 | |
| 4 | Free | 4.6β (3.7K) | No | No | Aug 2026 | |
| 5 | Free | 4.6β (11K) | No | No | Aug 2026 | |
| 6 | Free | 3.9β (844) | No | No | Aug 2026 | |
| 7 | Free | 3.7β (1.3K) | No | No | Aug 2026 | |
| 8 | Free | 2.7β (1.5K) | No | No | Aug 2026 |





Easily set up and configure your Ofen and Ofen Pro heaters. Connect your device via Bluetooth to your local WiFi and manage your mining pool settings with just a few taps.






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.




Manage your energy account with ease. Pay bills, monitor usage, and get outage updates. This app offers personalized features for a streamlined customer experience.


Manage your Xcel Energy account with ease. View billing information, make payments, report outages, and track your energy usage over time. Secure login options and multi-language support are available.


Manage and optimize your home energy usage with this app. It integrates smart devices and your account to help you track electricity consumption, view bills, and control smart thermostats for improved efficiency and comfort.


Take charge of your home's energy consumption. This app integrates solar, storage, and electric vehicle management into a single platform. Monitor performance, optimize usage, and gain insights into your energy ecosystem.


Monitor and manage your home energy system and electric vehicle charging. Optimize solar power usage for sustainability and cost savings. Track energy production, consumption, and grid supply in a clear, structured format.


Manage your utility account with ease. Pay bills quickly, track energy usage, and stay informed about power outages. Customize notifications and access energy-saving tips.


Manage your energy account and bills conveniently from your mobile device. Receive customized alerts, make quick or scheduled payments, and track your billing history. Sign up for various payment programs and update your account information with ease.


Manage your electricity account securely with biometric login. Report outages, track restoration, and receive bill notifications. Monitor energy usage and view projected costs.


Manage your PSEG Long Island account conveniently from your mobile device. Pay bills, track energy usage, report outages, and manage payment options with secure sign-on features.


This app allows Texas homeowners to monitor their battery-powered home energy service. Users can check battery and grid status, view energy usage, and understand backup duration. It also facilitates billing management, customer support contact, and sharing referral links.


Monitor real-time power grid conditions and receive important news and alerts. Customize your home screen with interactive dashboards for supply, demand, fuel mix, and wholesale prices. Stay informed about grid status and upcoming meetings.


Manage your Great Lakes Energy account on the go. View usage and billing details, make payments, and report service issues. Access facility and payment dropbox locations with an intuitive map interface.


This app integrates and manages all your home's electricity sources, automating energy production, storage, and consumption. It helps you save money and energy by optimizing usage and provides customizable settings for efficiency. The app also maximizes backup power during outages and helps make your home more sustainable.


Manage your electric account securely, pay bills in real-time, and monitor your energy usage with interactive tools. Stay informed about news, report outages, and access valuable discounts.


Manage your energy solutions account conveniently from your mobile device. Make payments, order fuel, and view account details with ease. This app provides access to a trusted energy partner for home and business heating oil, renewable energy, and maintenance services.


Manage your electricity account with ease. Access billing, payment history, and usage data. Set up AutoPay, Average Billing, and Paperless Billing. View plan details and compare usage trends.


Manage your electricity service with ease. Report outages, track restoration times, and request new service for construction projects. Stay informed with real-time updates and safety information.


Monitor your smart energy storage battery in real-time via Bluetooth. Remotely control charging modes and view battery levels, temperature, and speeds. This user-friendly app offers effortless energy management.