Zenith Builder

The ultimate companion app for experimental aircraft builders. Track your build, find a DAR, and fly with confidence. All models and aircraft

Zenith Builder is the all-in-one companion app for experimental amateur-built (EAB) aircraft builders. Whether you're just starting your kit or preparing for your first flight, Zenith Builder keeps everything you need in one place.

TRACK YOUR BUILD Log every build session with notes, photos, and hours worked. Watch your project grow from kit to airworthy aircraft with a running total of build days, hours, and photos — ready to export as a DAR Report when inspection day comes.

PARTS CHECKLIST Keep track of every part in your kit. Mark parts as received, flag missing items with quantities, and print or email your missing parts list directly to your supplier.

BUILD INSTRUCTIONS & RESOURCES Quick access to your aircraft's official kit info, builder resources, Zenith's members-only builder portal, and the full Zenith Aircraft website — all without leaving the app.

ORDER PARTS Direct links to Zenith's parts store, Aircraft Spruce, Wicks Aircraft Supply, and all major engine suppliers including Rotax, Continental, and Lycoming. Contact Zenith directly with a built-in call and email form.

AIRWORTHINESS MADE EASY Step-by-step N-number registration guide, all required FAA forms (8130-12, 8050-1, 8050-2, 8130-6), and a paperwork checklist to make sure nothing gets missed before your DAR shows up.

FIND A DAR & FSDO Search the full FAA FSDO database by state or city with one-tap calling. Find a Designated Airworthiness Representative through the EAA and FAA designee tools.

PHASE 1 & 2 FLIGHT TESTING Reference guides for FAA Phase 1 and Phase 2 flight testing requirements, including AC 90-89C, the EAA Stage One preparation guide, and the new 17-task testing program.

COMMUNITY Direct access to builder forums, Facebook groups, and YouTube channels from the Zenith community and beyond.

Built by a builder, for builders.