Toolbox™ vs RTAB

iMetalBox is the most elegant and handy toolkit ever created for your iPhone. Get 12 professional tools for the price of one! -------------------------------- User reviews: • "Nicely done ! Clever design and a must have for all. " - Dr5000 • "Pretty much any useful utility you'll need." - kfduv • "Versatile, functional, and easy to use." - MuzikGawd • "I love how the flashlight can be turned on as the first thing and that the light can be dimmed." - Reitveld • "This is my go to device for flashlight, stopwatch, levels, and it even has a built-in ruler." - grailpuffin • "Best compact app ever. It is very useful apps for daily use" - tinymoon -------------------------------- • Flashlight The brightest, fastest and most advanced flashlight for iPhone. It contains a compass and the brightness is adjustable. • Magnifier Transforms your phone into a magnifying glass with light. It will help you to read small text when you forgot your glasses. • Unit Converter Elegant and powerful unit converter with 16 categories. It can convert most currencies in the world. The exchange rate is updated frequently. • Tip Calculator Offer quick and easy way to calculate tips and split the bill among friends. Cash rounding is included for convenient. • Fraction Calculator Helps you to solve fraction maths quickly and easily. For example feet and inch calculator. • Stopwatch Great for timing sport events and contest. It has a hybrid design that combine both mechanic and digital stopwatch. Accurate to 1/100 second. Records can be copied to the clipboard. • Spirit level Use this tool to measure angles of any object. You can use this tool for picture alignment and home decoration. • Surface level Measure the slope of any flat surface such as pool table and table tops. • Ruler Support both inches and centimeters. It contains sliders to help measure small objects. • Protractor Measure angles from 0 to 180 degrees. Support degree and radian mode. • Battery Info Displays remaining time for various type of tasks such as surfing the internet or playing games. • Features: - A mini compass is included with the flashlight - Flashlight brightness is adjustable (iOS6 and later) - Authentic looking mechanical stopwatch - Calibrate and lock buttons for levels - Ruler with sliders for precise measurement

RTAB-Map (Real-Time Appearance-Based Mapping) is an Open Source LiDAR / RGB-D / Stereo Graph-Based SLAM (Simultaneous Localization and Mapping) approach based on an online incremental appearance-based loop closure detector. The loop closure detector uses a bag-of-words approach to determinate how likely a new image comes from a previous location or a new location. When a loop closure hypothesis is accepted, a new constraint is added to the map's graph, then a graph optimizer minimizes the errors in the map in real-time. An optional memory management approach can be used to limit the number of locations used for loop closure detection and graph optimization, so that real-time constraints on large-scale environnements are always respected. ARKit's visual inertial odometry (VIO) is used as the SLAM front-end for RTAB-Map (the SLAM back-end). * Note that unlike other scanning apps that optimize the map only after mapping, with RTAB-Map you get loop closure detection and map optimization online so you can have a live feedback to know when you have enough constraints in the map for good global optimization before stopping the scan. *** 3D reconstruction available only with LiDAR sensor. Features: * Online 3D scanning/mapping of the environment. * Online loop closure detection and map correction. * Save in DB format (RTAB-Map desktop and rtabmap_ros format). * Export in PLY, LAS or OBJ. * Multi-session mapping (save and continue later). * Use Apriltags to help finding loop closures in textureless environments. * Mixed AR/VR First-Person in visualization mode. * Raw ARKit data recording (up to 60 Hz!), useful to record long sessions without comprising battery life.