Timeshifter

Timeshifter is a jet-lag management app that helps frequent travelers adjust to new time zones more quickly. Using circadian rhythm science, it provides personalized schedules on when to sleep, avoid or seek light exposure, and take optional caffeine or melatonin. The interface is straightforward—after inputting your flight details and usual sleep habits, Timeshifter generates a step-by-step plan for minimizing jet lag. While some features require a subscription, many travelers find it invaluable for staying alert and productive during trips.

Pros:

-Science-backed approach to reducing jet lag
-Personalized, easy-to-follow schedules
-Straightforward interface and clear instructions

Cons:

-Some features behind a paywall
-Requires discipline to follow the schedule precisely
-Most effective for longer trips or frequent travelers