NanoTire vs Smelter

NanoTire brings tire-size comparison, premium 3D visualization and a full-screen GPS driving gauge together in one carefully designed app for iPhone and iPad. TIRE SIZE COMPARISON • Compare original and target width, aspect ratio and rim diameter. • View nominal sidewall, radius, diameter, circumference, revolutions, ride-height change and speedometer/distance difference. • Adjust reference speed and switch between metric and imperial units. • Explore mathematically matched candidate sizes with a configurable safety tolerance. 3D APPEARANCE STUDIO • Rotate a detailed 3D tire freely. • Choose wheel designs, finishes, tread patterns, caliper colors, brake-rotor sizes and types, and studio scenes. • Keep appearance choices consistent across the main preview and vehicle photo preview. VEHICLE PHOTO PREVIEW • Place the selected wheel style on a side-view vehicle photo. • Manually align size, perspective, wheel-face angle, occlusion and rotation. • Export and share the composed preview image. • This is a visual preview, not a fitment guarantee. GPS DRIVING GAUGE • Six visual themes with portrait and landscape layouts. • HUD mirror mode, speed alert, trip distance, maximum/average speed and duration. • Map-enhanced landscape layout using Apple MapKit. • NanoTire uses foreground location only while the gauge is active and does not record your route. SAVE, SHARE & WIDGETS • Save common tire comparisons and restore them later. • Share a clear text or image comparison report. • The optional WidgetKit widget shows recent 7-day steps and walking distance. NanoTire supports English, Simplified Chinese, Traditional Chinese, Japanese, Korean, German, Spanish and French, with Light and Dark Mode and dedicated iPad layouts. IMPORTANT Calculations are based on nominal tire dimensions. Actual dimensions and fitment vary by manufacturer, rim width, load, pressure, suspension, clearance and vehicle configuration. Always verify with the tire or vehicle manufacturer, or a qualified professional, before installation.

Know what to weigh before you melt. Smelter brings jewelry calculations, material references and practical learning together in one workshop app for iPhone and iPad. Prepare a gold alloy, adjust purity, plan a casting or make use of precious-metal scrap. Get clear results for the job in front of you, whether you work at the bench, teach jewelry making or are learning your craft. ALLOYS, PURITY AND SCRAP Calculate alloy proportions, raise or lower fineness, and find the fine-metal content of a batch. Work with gold, silver, platinum and palladium, combine scrap, and save useful alloy recipes. CASTING AND BENCH TOOLS Estimate metal weight from a wax model, convert between weight and volume using density, and calculate ring-blank dimensions and stock weights. Ring-sizing tools, investment mix calculations and unit converters keep everyday workshop calculations together. MATERIALS LAB AND ACADEMY Compare materials and their properties, consult reference densities, and create custom profiles using supplier data or your own measurements. Explore structured lessons and interactive exercises on alloys, purity, casting and workshop practice. KEEP THE JOB, NOT JUST THE ANSWER Save calculations, notes, measured weights and results in the Bench Log. Return to previous batches and keep your workshop records in sync with iCloud. MADE FOR YOUR WORKSPACE Pin and arrange your most-used calculators. Work with clear inputs and live results on iPhone, or use the extra room on iPad for a more spacious layout. Choose your accent color and keep the focus on your work. TRY EVERYTHING. UNLOCK IT ONCE. Start a free 14-day trial when you are ready. The trial includes all calculators, workshop tools, Materials Lab and Academy. After the trial, continued use of the tools requires Smelter Complete, a one-time in-app purchase for iPhone and iPad. No subscription. No automatic charge when the trial ends. Your saved workshop records remain available to read and export. All your workshop tools. One purchase.