6MWT Guide vs Trace Elements
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
6MWT Guide
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6MWT Guide - Educational Reference for the 6-Minute Walking Test 6MWT Guide is an educational and self-tracking app that helps you understand your walking performance through the framework of the 6-minute walking test (6MWT). Enter your distance, age, height, and weight, and the app shows you estimated reference values along with everyday activities and sports matched to your current level. Note: This app is for educational and self-tracking purposes only. It is not a medical device and is not intended to diagnose, treat, or monitor any medical condition. If you have health concerns, please consult a qualified healthcare professional. KEY FEATURES - 6-Minute Walking Test Logging Record your walking distance with date and notes. Track changes in your performance over weeks and months. - Personalized Activity Reference Browse a curated list of everyday activities, sports, and exercises matched to your estimated level. Understand which activities align with your current capacity. - Progress Visualization View your test history with simple charts and tables. See how your numbers evolve over time. - PDF Export Export your records as a PDF for personal review or to share with your trainer or coach. - Privacy First All data stays on your device. We do not collect, transmit, or store any personal information on external servers. No accounts, no tracking, no ads. WHO IS THIS FOR - Anyone curious about their walking fitness - Walking enthusiasts who want to track progress - Fitness-conscious users looking for an objective self-check tool - Educators, students, and trainers interested in walking-based assessment SUBSCRIPTION 6MWT Guide offers a subscription with a 3-day free trial: - Monthly Plan: $3.99 / month The free trial automatically converts to a paid subscription unless canceled at least 24 hours before the trial ends. Subscriptions auto-renew unless turned off in your Apple ID account settings. Manage or cancel anytime in Settings > Apple ID > Subscriptions. IMPORTANT DISCLAIMERS - This app does not provide medical advice, diagnosis, or treatment. - Estimated reference values are calculated from established formulas and are intended for educational and self-monitoring purposes only. - Always consult a qualified professional before starting any new exercise routine, especially if you have any health conditions. - Stop exercising immediately if you experience pain, dizziness, shortness of breath, or any unusual symptoms. Privacy Policy: https://puakekokumaikahee2024-pixel.github.io/6mwt-guide-privacy-policy/ Terms of Use (EULA): https://puakekokumaikahee2024-pixel.github.io/6mwt-guide-eula/
Trace Elements
This app helps individuals manage restricted diets by logging food intake and estimating nickel or cobalt content. It offers offline functionality, a customizable food database, and trend tracking to monitor daily intake against set limits.
- Offline food logging
- Nickel and cobalt intake estimation
- Customizable food database
- Barcode scanning
- Recipe building
- Daily trend calendar
- Journaling for mood and notes
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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.
Screenshots
Verdict
The clearest difference is update cadence: Trace Elements at weekly against 6MWT Guide's monthly. 6MWT Guide's advantage is iOS requirement (13.0 vs 15.5). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. 6MWT Guide sells 1 in-app purchase, starting at $3.99 per month and Trace Elements sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
6MWT Guide ships an update monthly, Trace Elements weekly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.
| Parameter | 6MWT Guide | Trace Elements |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 46 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroshi Adachi | Code Cowboys |
In-app purchases
6MWT Guide
- 6MWT Guide Pro3 Days trial$3.991 Month
Trace Elements
- Trace Elements Pro$1.991 Month
- Trace Elements Pro$12.991 Year
- A coffee$1.99
- A big coffee$4.99
- Coffee for a week$9.99








