WattWise

WattWise is a premium, offline-first appliance wattage consumption calculator and energy logger designed for homeowners, tenants, and energy-conscious individuals who want to track, estimate, and optimize their electrical power consumption without generic designs or invasive internet permissions.

Featuring a striking Neon Sci-Fi Industrial design with clean circuit board outlines, electric mint green highlights, and large high-visibility monospace readouts, WattWise makes analyzing your utility bills engaging and simple.

KEY FEATURES:

* Appliance Power Estimator: Input appliance wattage, average daily active hours, and local utility rates to instantly compute hourly, daily, monthly, and annual utility consumption and estimated costs.
* Energy Sandbox Logbook: Catalog and compare multiple household appliances (such as refrigerators, air conditioners, heaters, and computers) directly to your device with our offline Room database sandbox.
* Customizable Energy Rates: Save your local grid electricity rates per kWh to make estimations accurate for your region.
* Unit conversion & Toggles: Switch effortlessly between Wattage (W) and Kilowatts (kW) inputs.
* WattWise Settings Deck: Save default electricity rates, persistent currency codes, and custom tactile haptic vibration settings.

WHY WATTWISE?

* 100% Offline-First: Run energy estimations and calculations on the go, even in areas without cellular networks or internet coverage.
* Absolute Privacy: No account registrations, no ads, no trackers, and no third-party Firebase telemetry. All calculations remain sandboxed on your device.
* Minimal Resource Footprint: Optimized with native Jetpack Compose UI and R8 minification to keep the app lightweight and under 25MB.
* Zero Permission Bloat: WattWise does not request permission to access your location, storage, camera, or contacts.

Take control of your home power budget. Download WattWise today!