Android Cost Calculator
2026
Local ReviewCostPulse
Overview
An Expo React Native Android app for estimating personal fuel and electricity costs across selected date ranges.
The Challenge
People hear that fuel or energy prices changed, but they often do not know what that means for their own commute, billing period, or usage pattern.
The Solution
I built a mobile-first calculator with realistic sample price data, saved scenarios, comparison periods, and clear cost summaries for Android review.
Local
Status
Android
Platform
6
Tests
Mobile
Focus
Key Features
What it does.
01
Fuel Calculator
Calculates estimated fuel cost from date range, region, miles per day, MPG, and fuel type.
02
Electricity Calculator
Estimates billing-period electricity costs from kWh usage and sample regional price data.
03
Saved Scenarios
Stores example calculations locally so users can revisit commute, delivery, and energy-use scenarios.
04
Comparison Logic
Compares a selected period against a previous period and shows estimated extra cost or savings.
05
Android-First UI
Built with Expo React Native, mobile navigation, native-feeling forms, and emulator review in mind.
06
Demo-Safe Data
Uses realistic fictional sample data only, with a clean path for official APIs later.
Tech Stack
Built with.
Mobile
State
Logic
Review