Frictionless Decisions

01. The Problem

The Google Play Store is saturated with Random Name Picker and Decision Maker apps. However, almost all share a fatal flaw: they are bloated data-miners. Users shouldn't have to endure a 50MB download and unskippable video ads just to figure out who is paying for dinner.

I built Simply Spin™ to be Invasive Ad-Free. While the app utilizes a minimal, static banner to support ongoing development, it strictly prohibits pop-ups, interstitials, or any monetization that interferes with the user's workflow. It is a lightweight, strictly local randomization suite that executes instantly with zero bloat.

02. The Tech Stack

Creating a digital wheel that feels "real" requires moving beyond basic views and into physics-based rendering using 100% native Kotlin and Jetpack Compose.

• Physics-Driven Animation By utilizing Compose's Animatable with a custom DecayAnimationSpec, the wheel naturally decelerates based on simulated friction, behaving exactly like a physical object.
• Dynamic Haptic Feedback A custom haptic engine tracks the exact rotation angle, firing a precise vibration event exactly when the digital "peg" crosses a segment boundary to create a mechanical clicking sensation.
• Cryptographic Fairness Simply Spin uses java.security.SecureRandom to generate enterprise-grade entropy, ensuring every spin, flip, and roll is statistically impartial.

03. The Aesthetic

To maintain a frictionless interface, segment customization is handled via an inline ModalBottomSheet. Users can add, edit, or delete options in real-time without navigating away from the wheel. It is distraction-free utility in its purest form.