Nitrox Buddy vs TrackLinc

Nitrox Buddy is a no-frills calculator app for nitrox/enriched air divers - use it to quickly calculate the most important data for your dive: Maximum Operating Depth/MOD, Equivalent Air Depth/EAD, Best Mix and PPO2. The app works with imperial or metric measurements, sea or fresh water, and allows you to select the maximum oxygen content and partial pressure. A companion watch app puts lets you perform all these calculations on your wrist.

TrackLinc — race-day ticketing for motorsports. Buy tickets to the events you care about, keep them on your phone, and scan straight in at the gate — even when there's no signal in the pits. BUILT FOR THE TRACK Drag strips, road courses, and oval nights live in dead zones. TrackLinc saves your tickets on your device, encrypted, so your QR code is ready to scan whether you've got five bars or none. Walk up to a packed gate with no service and your ticket still works. WHAT YOU CAN DO • Browse upcoming motorsports events and buy tickets in a few taps • See exactly what you're paying — fees are itemized before you check out, with secure payment by Stripe • Keep every ticket in one place and pull up its QR code at the gate • Use your tickets offline — they're saved to your device and work with zero signal • Get order confirmations and event updates so you don't miss a gate time or schedule change • Manage your account: order history, ticket transfers, and refunds where the event allows • Sign in fast and securely with a passkey, Face ID, or Touch ID HONEST BY DESIGN When you're offline, the app tells you clearly that you're seeing saved tickets — never live data dressed up as live. Your card number never touches our servers (Stripe handles payments), and we don't sell your data or run ad trackers. For race fans, by race people. Download TrackLinc, grab your tickets, and show up ready.