SixtySum vs QuickRoom3D

Time isn't decimal. Your calculator shouldn't be either. SixtySum is a calculator built for one job: adding and subtracting hours, minutes, and seconds — fast. A regular calculator works in tens. Time works in sixties. SixtySum does the base-60 math for you, so 50 minutes plus 20 minutes is 1 hour 10 minutes — not 70. Tap H, M, or S, type the numbers, and go. No colon to fumble with. No menus to dig through. No internet to wait for. WHO IT'S FOR Video editors, streamers, audio and stage crews, and anyone who works by the clock and needs the total now — not after another web search. WHAT YOU CAN DO - Add and subtract HH:MM:SS values - Switch instantly between H / M / S input - Drop in 15m / 30m / 45m with a single tap - Chain calculations without stopping - See negative results for time differences - Review your last 20 calculations at a glance QUIET BY DESIGN - One-time purchase — buy it once, keep it - No ads - No subscription - No login or account - No tracking - Works fully offline SixtySum stays out of your way and just gives you the number. Note: Calculation history is kept for the current session only and is not saved permanently.

QuickRoom3D turns your iPhone or iPad's LiDAR scanner into a fast, accurate room-measuring tool. Walk through a room and QuickRoom3D builds an interactive 3D model and a clean 2D floor plan in seconds — no tape measure required. SCAN • Point your device and walk the walls — powered by Apple's RoomPlan • Capture multiple rooms and merge them into a single floor • Add several floors to one plan BROWSE • Explore your space as an interactive 3D model • Switch to a top-down 2D floor plan • See automatic measurements for every wall, door, and window • Tap any surface to highlight it and read its dimensions ANNOTATE • Drop notes and pins anywhere in 3D • Add your own point-to-point measurements • Keep room-by-room notes EXPORT & SHARE • Export a 3D model (USDZ) for Quick Look and your design tools • Share a floor-plan image Perfect for planning a move, buying furniture, redecorating, real estate listings, or any time you need to know how big a space really is. Requires a device with a LiDAR Scanner (iPhone Pro or iPad Pro). Your scans stay on your device.