ScrewTrail

Keep every screw on the right trail. ScrewTrail helps DIY and electronics repairers record exactly where each removed screw or small part came from and where it was placed. Pin the origin on a step photo, choose the matching cell in your physical tray, and keep the connection visible throughout the repair. When it is time to rebuild, ScrewTrail reverses your recorded mappings into a clear reassembly queue. Each step keeps the origin, tray cell, photo, and note together so you can confirm the physical work directly. WHAT YOU CAN DO • Try a guided sample before creating a project • Choose an arbitrary tray grid that matches your workspace • Import a step photo with Android Photo Picker • Place an origin pin and connect it to a tray cell • Add a short note for visually similar parts • Prevent duplicate occupied origins and tray cells in the digital record • Pause locally and resume at the exact next action • Follow an explicit reverse reassembly queue • Delete one project or clear all local project data • Use the app in English or Korean PRIVATE BY DEFAULT No account is required. Project titles, photos, pins, tray mappings, notes, and completion state stay in app-private local storage and are not uploaded to a ScrewTrail server. Core mapping and reassembly work offline. IMPORTANT LIMIT ScrewTrail is an organizational aid. It does not sense your physical tray, identify parts, provide repair instructions, or decide whether a repair, tool, component, torque, electrical condition, or workspace is safe. Always verify the physical device and follow manufacturer guidance. ScrewTrail is free and contains ads. Ads never appear while you capture a mapping or follow the reverse reassembly queue.