Spirit Level vs GPF Bubble Level

This application is professional spirit level tool or just bubble level with nice bubble physics. It is a simple but extremely useful tool in your pocket to check whether a surface is level or not. Its app`s range from entertained purposes such as checking pool billiard tables in the bar to serious usages like constructions, carpenter, etc. This app stands out from the other similar tools by its nice design, high accuracy and many other functionality. After correct calibration you can go ahead and use this app tool instead a real spirit level.. To calibrate the levels, hold the phone against a reference surface.

GPF Bubble Level is a minimal, high-contrast spirit level app for iPhone, built around real-time accelerometer data. It uses Core Motion to read device gravity and translates movement into a smooth on-screen bubble inside a circular level grid. The interface is intentionally clean: black background, white elements, Menlo typography, and a compact layout designed for quick visual alignment in everyday use. Key features: - Real-time level detection using accelerometer/device motion - Smooth bubble movement with light filtering for stability - Tilt angle readout in degrees - Live X/Y gravity values for reference - Dedicated Info screen with app icon, title, and version/build footer - Custom monochrome app icon (white on black) consistent with the app style Design goals: - Fast glanceability - No clutter - Strong visual contrast for indoor/outdoor visibility - Coherent monochrome identity across UI and iconography Technical notes: - SwiftUI-based UI - CoreMotion integration via observable motion manager - Motion privacy usage description configured - Build/version shown directly from bundle metadata This app is ideal for quick leveling checks on surfaces, shelves, frames, and small DIY tasks, with a focused UX that prioritizes readability and responsiveness.