I stack gold and silver and got tired of opening 5 tabs to check prices. So I built Lode. A free hub for precious metals stackers: live spot prices every 15 min (gold, silver, platinum, palladium), portfolio tracking, email alerts when a metal hits your target, a daily prediction game, and a jewelry & scrap calculator to convert grams to dollars by karat or purity. Built by a stacker, for stackers. Free.