Avion Shift

Jet lag is optional. Get a free, science-backed plan the moment you book — light, sleep, and melatonin, timed to the minute

Jet lag is optional.

Avion Shift builds you a personalized, science-backed plan for every flight — telling you exactly when to seek light, when to avoid it, when to sleep, and when to take melatonin so you arrive on local time instead of body time.

Most jet lag apps charge $25 a year for this. Avion gives you unlimited plans for free.

HOW IT WORKS

Enter your flight. Avion calculates your body's internal clock and the timezone shift ahead of you, then generates a complete day-by-day schedule built on published circadian research — the same phase-response science used by sleep labs.

Every recommendation is timed to the minute and adapts to the direction you're traveling, how many zones you're crossing, your chronotype, and your sleep habits.

WHAT YOU GET, FREE

• Unlimited personalized jet lag plans • Precise timing for light, darkness, sleep, caffeine, and melatonin • Timed notifications for every step — no clock-watching • A clear daily timeline of exactly what to do and when • Fully offline — your whole plan works at 38,000 feet with no signal

AVION PRO

Upgrade once for the features frequent flyers need:

• Multi-city and connecting itineraries • Live delay updates that adjust your plan automatically • Lock Screen widgets and Live Activities for your next action • Custom app icons

WHY AVION

Built on peer-reviewed circadian science — light and melatonin phase-response curves, core-body-temperature timing, and direction-aware adaptation. Designed to feel native on iOS, work entirely offline, and respect your privacy. No ads. No data sold. Just a plan that gets you there sharp.

Jet lag has a solution. Avion is it.

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Avion provides general wellness information and is not a substitute for professional medical advice. Consult a clinician before taking melatonin or making changes to your sleep, especially if you have a medical condition or take medication.

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