Umbra Sphere vs Log Your Log

Umbra Sphere is a proof-of-concept app, we use a geospatial technology called "S²Geometry" to store the locations you've visited, identify which country or region they belong to and present them on a map as cleared shadows (umbra). S²Geometry is a geocoding system that divides the Earth's surface into "cells" ranging from 85 million square kilometers to 0.5 square centimeters. These cells are converted into 64-bit integers using the Hilbert curve. Compared with traditional latitude-longitude coordinate system and map projections, S²Geometry is less intuitive, but it avoids significant distortion, delivers globally consistent accuracy, and offers extraordinary indexing and querying performance. With these advantages, Umbra Sphere converts traces into a series integers and stores them in database with appropriate indexes to generate umbra fast in real-time for displaying. It also provides statistical features, presenting the areas of countries or regions you've visited on "visa" cards. Additionally, Umbra Sphere also features a simple S²Geometry visualization tool, allowing you to view S²Geometry cells and their corresponding integer IDs directly on the map. ● Umbra Sphere supports importing these file types: • GPX and KML trace files • Sync files and snapshot files from Fog of World • Backup CSV files from StepLife ● Privacy We respect privacy, and simply do not collect any of your data. All your data are stored in your device. Umbra Sphere does not provide sync feature, you can manually export and import your data.

Log Your Log is the ultimate global tracker for your most personal missions. Turn your travels into a mission of determined world conquest. From the peaks of mountains to 5-star hotels, every location you conquer is added to your permanent heatmap and stats. Unlock hidden accolades, climb various leaderboard leaderboard, own locations. WHY LOG YOUR LOG? Stop treating your business like a chore and start treating it like a global campaign. With Log Your Log, you aren't just tracking health—you’re building a legacy. CORE FEATURES: • INTERACTIVE WORLD MAP: Visualize your global reach. See every location you’ve conquered with a high-detail map, heatmap overlays, and a "Favorites" list for those truly elite locations. • PRECISION MAPPING: Accuracy is the key to victory. Use GPS-precision pin drops to capture exact locations. From the summit of a mountain to a quiet corner of a local cafe—mark it all. • ELITE RATING SYSTEM: Not all logs are created equal. Rate your experience from 0.0 to 10.0 (to the tenth decimal) to keep a precise record of the legendary sessions versus the ones you’d rather forget. • ADVANCED ANALYTICS: Geek out on your own "movements." Track total logs, daily averages, countries visited, and territories captured. Use our deep search & filter tool to find that one specific log from last summer's vacation. • HIDDEN ACCOLADES & ACHIEVEMENTS: Earn your stripes. Unlock fun, rare accolades as you hit major milestones. From your "First Deposit" to secret Hidden Accolades that only the most elite loggers will discover. • GLOBAL LEADERBOARD: Do you have what it takes to be the #1 logger on Earth? Opt-in to the leaderboard feature and see how your stats stack up against anonymous legends in your area or around the world! • DAILY BRIEFINGS: Stay informed while you perform. Get daily digestive facts and health tips sourced from leading clinical journals. • MISSION SECURITY (PRIVACY): Your data is for your eyes only. Your detailed location data and notes stay 100% private. Leaderboard opt-in is completely optional, and only your username and log tally are shared. Your territory remains your own. Download Log Your Log today and start conquering the world, one pin at a time.