Before my partner and I embarked across the globe I pondered how to reduce jetlag. ‘There must be an app for that?’ I thought. I discovered Timeshifter and it delivered. Traveling from San Francisco to Iceland then Paris wasn’t so bad. The app gave us a plan to sleep on the flight and calibrate day by day considering our caffeine intake at certain times, exposure to light and taking melatonin. Instead of sleeping through our vacation we enjoyed it! Best part was on the return we had a busy weekend back in San Francisco. Thanks to the app we didn’t miss a beat. Highly recommend to anyone traveling across time zones. It also has a well designed interface.