Spyridon Pikoulas

iPhone apps

Lagmend: Jet Lag Planner

Plans when to seek light, avoid it and sleep, before and after a flight, until your body clock is on local time.

$19.99 a year or $39.99 once, 7 days freeComing soon

Lagmend turns your flight into a plan: when to seek bright light and when to avoid it, when to sleep, and, if you like, when to take melatonin and your last coffee, from the days before you leave until your body clock has arrived.

No account, no sign-up, no tracking: your flights and sleep times stay on your iPhone.

Free and Lagmend Pro

Lagmend is free to download and use for the light and sleep plan for one trip. Lagmend Pro unlocks unlimited trips, reminders through the trip, melatonin and caffeine timing, and the lock-screen widgets, with a weekly subscription, a yearly one that starts with a 7-day free trial, or one payment for good. The App Store shows the price in your currency before you buy.

Guidance, not medical advice

Lagmend’s plans follow published research on light, sleep and melatonin, worked out from the flights and sleep times you enter. Bodies differ, and how fast a body clock shifts varies from person to person, so treat a plan as guidance.

Support

Restore a purchase. In Lagmend, open Lagmend Pro and tap Restore. Purchases belong to your Apple Account, so they come back on a new iPhone or after reinstalling.

Cancel a subscription. Open Settings, tap your name, then Subscriptions, choose Lagmend and tap Cancel Subscription, at least 24 hours before it renews. Lagmend Pro stays until the end of the period you paid for (Apple’s guide).

Refunds. Purchases are made through Apple, so Apple handles refunds: request one from Apple.

Your data. Everything you enter stays on your iPhone. There is nothing to sign in to, and we cannot see or recover it. Deleting Lagmend deletes its data from the iPhone.

Anything else. Write to spyridwn.pd@gmail.com with your iPhone model and iOS version; a screenshot helps.