Tail Number offline database vs Zeroed

Use Tail Number offline database to look up aircraft even when you don't have cell service! Tail Number offline database has a copy of all aircraft publicly registered with the FAA and Transport Canada, and can be used to keep track of which ones you've seen while airborne.

Zeroed is the ultimate digital armory built for the privacy-conscious firearm owner. Ditch the physical notebooks and vulnerable cloud spreadsheets. Zeroed gives you an offline-first, highly detailed inventory and operational tracker that mathematically guarantees your privacy. Zeroed includes a free trial with full access. A Zeroed Pro subscription or one-time lifetime purchase is required to continue after the trial. Whether you are a collector managing high-value assets for insurance, or a high-volume competitor tracking barrel life and split times, Zeroed adapts to your needs. If you do not want your data in the cloud, it never leaves your physical device. THE VAULT Manage your entire collection in a secure, searchable database. Add custom photos, record serial numbers, and track acquisition details. Toggle Privacy Mode to instantly hide sensitive values like prices and serial numbers from shoulder-surfers when showing off your collection. SMART AMMO & PARTS TRACKING Stop wondering what is sitting in the safe. Track every accessory, optic, and batch of ammunition. Use the built-in barcode scanner to instantly log new boxes of ammo in seconds. Zeroed calculates your total round counts and cost-per-round metrics automatically so you always know the exact value of your stockpile. LIVE RANGE SESSIONS & ODOMETER Turn your static inventory into an active operational log. The Live Session dashboard acts as a smart odometer for your firearms. Log rounds as you shoot, track malfunctions, and let Zeroed automatically deduct fired rounds from your ammo stash while adding them to your specific firearm's total round count. MAINTENANCE ALERTS Never miss a recoil spring replacement again. Zeroed tracks your firearm usage and triggers maintenance alerts based on your customized round-count schedules, keeping your equipment running flawlessly. INSURANCE & DATA EXPORT You own your data. Generate formatted PDF or CSV reports of your entire collection with a single tap. Perfect for maintaining pristine insurance documentation or securing personal hard-copy backups. LOCAL-FIRST SECURITY Your privacy is our baseline, not a premium feature. Zeroed uses a local database to store everything directly on your phone. Cloud backup is entirely optional. If you choose to sync your data for multi-device access, it is secured with zero-knowledge architecture.