WattSave: EV vs Gas Costs

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100+
Downloads
Content rating
Everyone
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About this app

WattSave compares how much energy your trip would use as an EV vs a petrol/diesel vehicle — in real time.

Drive as usual while the app estimates and displays side-by-side consumption and cost impact based on speed, acceleration, elevation changes, and vehicle parameters.

It’s a practical way to understand the real energy profile of your route.

REAL-TIME COMPARISON
• EV energy estimate vs petrol/diesel equivalent
• Live updates while driving
• Route-aware behavior (accelerate, brake, climb, descend)

COST INSIGHT
• Enter local fuel and electricity prices
• Compare trip cost between vehicle types
• Understand potential savings with electric driving

VEHICLE FLEXIBILITY
• Pick from supported EV profiles
• Add custom vehicle parameters (mass/aerodynamics)
• Tune assumptions for more realistic comparisons

TRIP METRICS
• Distance and speed tracking
• Elevation-aware estimation
• Sensor-based motion input from your phone

WHY USE WATTS APP
• Make EV decisions with route-level data
• Visualize hidden energy differences in daily driving
• Useful for commuters, EV-curious users, and energy-conscious drivers

If you’ve ever asked “How different would this trip be in an EV?”, WattSave gives you a clear, data-driven answer.
Updated on
Mar 22, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 4 others
This app may collect these data types
Location, Personal info and 4 others
Data is encrypted in transit
Data can’t be deleted

What’s new

Bug fixed.