Ohmbench

Description

Offline Ohm's law workbench. Enter any two of voltage, current, and resistance. The app solves the third value, the power in watts, and the nearest E12 resistor.

• Seller: Yuri Morkhov
• Package: ru.ohmbench.app
• UI: Kotlin, Jetpack Compose, Material 3
• Min SDK: 26, target SDK: 35
• Price: $9

Features

• Solve for voltage, current, or resistance
• Power in watts, with a quarter-watt warning
• Nearest value on the E12 resistor series
• Session history of saved readings
• Short formula card for V, I, R, and P
• No network permission and no API key

Who it is for

A small electrical or maker utility. The calculation core is plain Kotlin with JVM unit tests, so a reskin does not have to retouch the math.

What the buyer gets

• Android Studio project (Kotlin + Gradle wrapper)
• JVM unit tests for the logic core
• Adaptive icon, strings, colors, and theme
• README with build and reskin steps
• LICENSE for one shipped application

Requirements

• JDK 17
• Android SDK 35
• No API keys, no backend, no network permission

Reskin

Change the name in strings.xml, the seed colors in MainActivity.kt, and the adaptive icon drawables. Package rename steps are in the README.