Smelter

Smelter

Gold, Karat & Alloy Calculator

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$4.99 Free

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Details

  • Released
  • Updated
  • August 14, 2026
  • August 21, 2026

Features

Smelter screenshot #1 for iPhone
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About

Smelter is a precise pocket workbench for jewelers, jewelry students, teachers, and makers who work with precious metals. Prepare alloys, adjust fineness, work with scrap, estimate casting weight, compare densities, calculate fine-metal content, and solve the everyday metal calculations that happen at the bench. BUILT AROUND THE JOB IN FRONT OF YOU Start with what you need to do: • Prepare an alloy • Correct fineness • Calculate a casting • Work with scrap Smelter takes you directly to the right calculation and presents the result in a clear, practical way — including the amounts to weigh and the mathematics behind them. CALCULATE WITH CONFIDENCE Use Smelter for: • Alloy and fineness calculations • Raising or lowering purity • Fine-metal content • Scrap and mixed-metal calculations • Casting-weight estimates • Density conversions • Precious-metal conversions • Ring and stock calculations • Workshop planning BENCH LOG Save useful calculations as workshop records so you can return to previous melts, batches, notes, measured final weights, and process results. It turns a calculation into something you can actually refer to at the bench. PRECIOUS METALS, NOT JUST NUMBERS Smelter is designed around jewelry metals such as gold, silver, platinum, and palladium, with familiar fineness standards and practical workshop terminology. OPTIONAL SPECIALIST EXTENSIONS Smelter’s essential calculation tools are included. If you need more, permanent one-time extensions add deeper specialist capabilities. SMELTER LAB Go further with scrap mixing, advanced formulation, recipes, planning, and multi-element alloy work. JEWELLER’S BENCH Add production-focused tools for stock, ring blanks, geometry, investment, and workshop preparation. MATERIALS LAB Explore a detailed reference library of jewelry and fabrication materials. Compare metals side by side, understand density and working characteristics, and create custom supplier or measured material profiles for use in calculations. SMELTER ACADEMY Learn the principles behind the numbers through structured lessons covering purity, alloys, scrap correction, casting mathematics, melting, process control, and troubleshooting. Interactive exercises connect theory directly to Smelter’s real calculators. The Foundations path is included so you can experience the learning system before deciding whether to unlock the complete Academy. FOR THE BENCH, CLASSROOM, OR STUDIO Whether you are learning jewelry making, teaching metallurgy and calculation, preparing a casting, or working professionally with precious metals, Smelter is designed to make the numbers easier to understand and faster to use. Precise when it matters. Calm when you need it.
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What's New in Smelter

1.2

August 21, 2026

Smelter 1.2 brings more personalization, smoother navigation, and improved reliability across the app. • Choose your accent color — personalize Smelter with seven carefully selected color options, including Smelter Orange, Gold, Copper, Jade, Ocean, Violet, and Rose. • Smoother Calculate experience — scrolling is now properly locked to the vertical axis, eliminating unwanted sideways movement. • More reliable extensions — improved purchase, restore, and entitlement handling for Smelter Lab, Jeweller’s Bench, Materials Lab, and Smelter Academy. • Purchased extensions now refresh automatically when Smelter returns to the foreground, helping keep access in sync across devices. • Improved StoreKit loading and recovery when opening extension purchase screens. • Additional interface, stability, and usability refinements throughout the app. Thank you for using Smelter.

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