Are there any smart energy storage controllers that focus on app-based controls for homeowners?

Yes. There are smart energy storage controllers and home battery systems that emphasize app-based control for homeowners.

A few common examples/categories:

• Tesla Powerwall + Tesla app
  Very app-centric, with monitoring, backup reserve settings, usage history, and control of modes.

• Enphase IQ Battery + Enphase App
  Popular for homeowners with solar; app shows production, consumption, battery status, and battery behavior.

• Sonnen eco / Sonnen app
  Focuses on home energy management through the app, including battery status and usage optimization.

• Generac PWRcell + PWRview app
  Offers app-based energy monitoring and control features for homeowners.

• Span smart electrical panel + app
  More of an energy control hub than a battery controller, but very homeowner-friendly and app-driven for managing circuits and loads.

• Some hybrid inverters/EMS platforms from brands like SolarEdge, FranklinWH, and Bluetti also provide homeowner apps for battery and load control.

If you want, I can also give you:

1. a comparison table of these options,
2. the best choices for solar + battery, or
3. controllers that focus specifically on backup power, TOU savings, or load shifting.