Trace Elements

Trace Elements is a private, offline food diary for people on a restricted diet — a low-nickel diet for Systemic Nickel Allergy Syndrome (SNAS) or nickel-sensitive dermatitis, or a low-cobalt diet. Log what you eat and the app estimates how much nickel (or cobalt) each meal and each day adds up to, against a daily limit you set. It works fully offline, has no account, no ads, and no tracking. Your data stays on your iPhone. FAST DAILY LOGGING • Add foods to Breakfast, Lunch, Dinner, and Snacks • Enter amounts in grams or common serving sizes • A progress ring shows your running daily total at a glance • Copy a meal forward from yesterday with one tap • Save favorite meals and re-add them in seconds A FOOD DATABASE THAT GROWS WITH YOU • Hundreds of foods with reference values from the Rebelytics low-nickel and low-cobalt diet datasets • Edit or add your own values — they're saved and reused • Scan a packaged product's barcode to pull in its ingredient list • Can't find a food? Look it up in the USDA FoodData Central database, or use the in-app web lookup. These optional lookups are the only times the app goes online. RECIPES • Build compound foods (a sandwich, a stew, a takeout order) from ingredients and the app totals them automatically • Save them as reusable recipes SEE YOUR TRENDS • A calendar colors each day Good, Caution, or Over against thresholds you choose • Keep a per-day journal with mood and notes PRIVATE BY DESIGN • No sign-in, no user accounts • No advertising, analytics, or crash-reporting SDKs • Camera images from barcode and menu scans are read on the device and never stored or uploaded TRACE ELEMENTS PRO (optional subscription) • Track cobalt alongside nickel, with its own daily limit and dataset • Scan a restaurant menu: photograph it, pick your dish, and its ingredients are looked up — on supported iPhones, your phone's own on-device AI can estimate ingredients and portions without anything leaving the device • Export PDF reports to share with your clinician • Back up and restore everything: to a file, or to your own iCloud • $1.99 per month or $12.99 per year. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the end of the current period. Manage or cancel subscriptions in your App Store account settings after purchase. • Prefer a one-time thank-you? A tip jar is there too. Core tracking stays free. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://traceelements.app/privacy A NOTE FROM THE DEVELOPER I built this app for my wife after she was diagnosed with a nickel sensitivity. Managing it day to day was harder than it needed to be, and this was the only way I knew how to help. If it makes your days a little easier too, it's done its job. Please note: Trace Elements is a self-tracking aid. Reference values are estimates and vary by source, growing region, and preparation. It is not a medical device and does not provide medical or dietary advice. Always consult a qualified healthcare professional about your diet and any food sensitivities.