CNC Utility Pro

Persistence & UX Favorites — long-press any tab to pin it to a dedicated Favorites row Last-used tab is remembered between launches Search bar to filter calculators by name Export/share button on several results (Speeds & Feeds, Tap Drill, Triangle Solver, Material Weight, Masonry, Fencing, Job Cost, Panel Load) Settings screen with an appearance mode toggle — System / Light / Dark now genuinely change the color palette (previously "Light" didn't actually render light colors) Optional one-time "tip" purchase in Settings for anyone who wants to support development — not a paywall, the app stays fully unlocked at your $5 one-time price New trades calculators Plumbing — pipe slope/fall, pipe volume & flow/fill time HVAC — BTU heat load estimator, duct sizing Electrical — new Panel/Service Load mode (whole-panel sizing via simplified NEC 220 method), added alongside your existing wire gauge, voltage drop, and conduit fill tools Framing — stud count, deck joist span checker, deck board calculator Masonry — block/brick + mortar calculator Landscaping — mulch/soil/gravel volume, paver/patio calculator Fencing — posts, rails, pickets, concrete Job Cost Estimator — full quote builder (materials + labor + overhead + contingency + markup → final price and margin)