Timeshifter

Name: Timeshifter
Rating: 4.7 (2350 reviews)
Author: Timeshifter Inc.

The Jet Lag App

Only for iPhone

Free · In‑App Purchases · Designed for iPhone

2.4K Ratings
Ages

13+
Years
Category

Travel
Developer

Timeshifter Inc.
Language

EN
English
Size

45.6
MB

iPhone

Make jet lag history with highly personalized jet lag plans. // Condé Nast Traveler: “Say goodbye to jet lag” // The Wall Street Journal: "Indispensable" // Travel + Leisure: “Game-changer” // New York Times: “Timeshifter is as good as it’s going to get." // CNBC: "Saves time and money" // WIRED: "Will help reset your [circadian] clock” // Lonely Planet: "Incredible" // Prevention: “One of the best apps according to doctors” JET LAG MYTHS VS. CIRCADIAN SCIENCE Misleading advice on conquering jet lag — often promoted by non-experts — not only fails to help travelers but can make jet lag symptoms worse and may even cause harm. It’s time to replace the myths with real science. Generic sleep advice, exercise, hydration, grounding, dietary supplements, special diets, or fasting won’t solve jet lag because they don’t "reset" your circadian clock to new time zones. THE REAL JET LAG SCIENCE // In your brain, a circadian clock helps manage the regular rhythm of your day. // Jet lag is caused when your sleep/wake and light/dark cycles shift too quickly for your circadian clock to keep up. // Light is the key time cue to “reset” your circadian clock, so the correct timing of light exposure and avoidance is the only way to adjust to new time zones quickly. If your timing is wrong, it will make your jet lag worse. WHY WE MADE TIMESHIFTER Getting the timing right is both complex and unintuitive. We created Timeshifter to make circadian science accessible and help you apply it to conquer jet lag. Timeshifter helps you tackle both the underlying cause of jet lag – the disruption of your circadian clock – as well as reduce the disruptive symptoms, such as insomnia, sleepiness and digestive discomfort. KEY FEATURES // Circadian Time™: Advice is based on your body’s clock // Practicality Filter™: Adjusts advice to the "real world" // Quick Turnaround®: Automatically detects short trips // Pre-travel advice: Start adjusting before departure // Push notifications: View advice without opening the app PROVEN RESULTS Based on ~130,000 post-flight surveys: // 96.4% of users who followed Timeshifter's advice 80% or more did not struggle with severe or very severe jet lag. // Travelers who did not follow the advice experienced a 6.2x increase in severe or very severe jet lag, and a 14.1x increase in very severe jet lag! TRY IT FREE Your first jet lag plan is free — no commitment required! After your free plan, you can choose to purchase plans as-you-go or subscribe for unlimited plans. These statements have not been evaluated by the Food and Drug Administration. Timeshifter is not intended to diagnose, treat, cure or prevent any disease, and is intended for healthy adults, 18 years of age or older. Timeshifter is not intended for pilots and flight crew on duty. Terms of use: www.timeshifter.com/terms/terms-of-use Privacy policy: www.timeshifter.com/terms/privacy-policy

Ratings & Reviews

4.7

out of 5

2.4K Ratings

Works GREAT!
04/10/2022

Sashazur
I just used this app for the first time for traveling from the USA west coast to Greece, a 10 hour difference. It’s easy to follow the recommendations - the plan before I left started 2 days ahead, telling me to go to bed progressively earlier by a couple of hours, and to avoid or seek light by no more than 2-3 hours difference than when I would anyway. It also told me when to drink or avoid caffeine, but I usually don’t do coffee, and mostly ignored that advice without problems. The only part that was a bit difficult was sleeping on the plane, which I’m very bad at, plus the plan wanted me to sleep until only an hour or two before landing which is basically impossible since that’s when the lights go back on and people start getting ready to arrive. But I took melatonin (as the app advised) and a Unisom and did manage to sleep several hours regardless. Once I landed the plan continued for another 3 days, but again with nothing crazy or challenging. I can’t say that I had no jet lag at all (I still felt like my body was vibrating at odd times), but the difference really was remarkable regardless; there never was a time when I felt like a zombie or wanted to sleep or stay up when everyone around me would be normally doing the opposite. I’m definitely going to keep using this app. I also love the pricing structure - the first trip is free and then is pay per trip which is very sensible.
Works GREAT!
04/10/2022

Sashazur

I just used this app for the first time for traveling from the USA west coast to Greece, a 10 hour difference. It’s easy to follow the recommendations - the plan before I left started 2 days ahead, telling me to go to bed progressively earlier by a couple of hours, and to avoid or seek light by no more than 2-3 hours difference than when I would anyway. It also told me when to drink or avoid caffeine, but I usually don’t do coffee, and mostly ignored that advice without problems. The only part that was a bit difficult was sleeping on the plane, which I’m very bad at, plus the plan wanted me to sleep until only an hour or two before landing which is basically impossible since that’s when the lights go back on and people start getting ready to arrive. But I took melatonin (as the app advised) and a Unisom and did manage to sleep several hours regardless. Once I landed the plan continued for another 3 days, but again with nothing crazy or challenging. I can’t say that I had no jet lag at all (I still felt like my body was vibrating at odd times), but the difference really was remarkable regardless; there never was a time when I felt like a zombie or wanted to sleep or stay up when everyone around me would be normally doing the opposite. I’m definitely going to keep using this app. I also love the pricing structure - the first trip is free and then is pay per trip which is very sensible.
I’m sold! This app is amazing!
11/17/2018

ggfnyc
Recently flew from JFK-HKG-ICN-HKG-JFK. I was worried because I usually get pretty hard with jet-lag, even on flying shorter distances - and I really had to hit the ground running when I arrived. Well I can honestly say that I never experienced any jet-lag effects during my trip - or upon my return. . My colleagues were all complaining and they would hit a wall at around 3-4pm and complain that they woke up in the middle of the night and could not go back to sleep. Meanwhile I was bright eyed and bushy tailed. One of the people I was visiting in Seoul, even commented on how refreshed I looked, given I had flown almost 20 hrs the previous day. I followed the app as close as I could. I also utilized those blue light blocking glasses when I was supposed to be avoiding light - but couldn’t completely control my environment. Regarding melatonin, I find that most people take too high of a dose. I would start with a 2.5 mg dose prior to sleep. If I woke up at least 4 hrs before I planned to - and felt I would have trouble falling back to sleep, I would take another .5 to 1.0 mg dose and would fall right back to sleep. On my outbound 16 hr flight to Hong Kong, my flight departed at 9am - and the app instructed me to sleep the first 7 hrs of the flight. Taking the low dose melatonin each time I woke up (approx) every two hrs - really helped. Will definitely subscribe to the annual plan and rely on this for all future long-haul trips.
I’m sold! This app is amazing!
11/17/2018

ggfnyc

Recently flew from JFK-HKG-ICN-HKG-JFK. I was worried because I usually get pretty hard with jet-lag, even on flying shorter distances - and I really had to hit the ground running when I arrived. Well I can honestly say that I never experienced any jet-lag effects during my trip - or upon my return. . My colleagues were all complaining and they would hit a wall at around 3-4pm and complain that they woke up in the middle of the night and could not go back to sleep. Meanwhile I was bright eyed and bushy tailed. One of the people I was visiting in Seoul, even commented on how refreshed I looked, given I had flown almost 20 hrs the previous day. I followed the app as close as I could. I also utilized those blue light blocking glasses when I was supposed to be avoiding light - but couldn’t completely control my environment. Regarding melatonin, I find that most people take too high of a dose. I would start with a 2.5 mg dose prior to sleep. If I woke up at least 4 hrs before I planned to - and felt I would have trouble falling back to sleep, I would take another .5 to 1.0 mg dose and would fall right back to sleep. On my outbound 16 hr flight to Hong Kong, my flight departed at 9am - and the app instructed me to sleep the first 7 hrs of the flight. Taking the low dose melatonin each time I woke up (approx) every two hrs - really helped. Will definitely subscribe to the annual plan and rely on this for all future long-haul trips.
Follow it & REALLY works - recommend to All
06/17/2019

EastEndPghPetiteGurl
I came across the name of this app in an article and have since come across it in more online articles since downloading and using it. I was doing some simultaneous research on my upcoming trip to Europe (from the US) and also on helping my mom reset her circadian rhythm, as it’s become a major quality of life issue for all of us. I downloaded it onto my iPhone, for this first free trip, And was determined to use it as an experiment because I remember in the past having terrible jet lag upon arrival in Europe. I admit that I followed it to a T and started following suggestions on the app starting four days before departure. I know from experience that I was in a much better state of mind upon arrival. I’ve recommended this to friends and family, particularly for the distance that you have to travel, specially for those that travel often and or for business purposes. I really appreciate the simplicity and beauty of the app with the visual cues and also the ability to read more and learn why and how things work. Because I plan to do more traveling in the coming years I will definitely purchase use of the app. I have them for their review online and found more information and research behind the app and I’m sharing this with my mom who really needs to reset her circadian rhythm but has no guidance on that. Kudos to an exceptional app that is extremely user-friendly!
Follow it & REALLY works - recommend to All
06/17/2019

EastEndPghPetiteGurl

I came across the name of this app in an article and have since come across it in more online articles since downloading and using it. I was doing some simultaneous research on my upcoming trip to Europe (from the US) and also on helping my mom reset her circadian rhythm, as it’s become a major quality of life issue for all of us. I downloaded it onto my iPhone, for this first free trip, And was determined to use it as an experiment because I remember in the past having terrible jet lag upon arrival in Europe. I admit that I followed it to a T and started following suggestions on the app starting four days before departure. I know from experience that I was in a much better state of mind upon arrival. I’ve recommended this to friends and family, particularly for the distance that you have to travel, specially for those that travel often and or for business purposes. I really appreciate the simplicity and beauty of the app with the visual cues and also the ability to read more and learn why and how things work. Because I plan to do more traveling in the coming years I will definitely purchase use of the app. I have them for their review online and found more information and research behind the app and I’m sharing this with my mom who really needs to reset her circadian rhythm but has no guidance on that. Kudos to an exceptional app that is extremely user-friendly!
10 plus 10 time zone jumps with Timeshifter.
11/23/2024

Teimuray
I may have used Timeshifter 12 times. Each time it was transatlantic or at least 8 time zones of travel. I was so skeptical the first time my buddy had it pulled up. It was COVID time and I love coffee. He was still drinking it but only a certain times. I was interested as it didn’t seem like major changes in the travel except small time windows when caffeine was used. Also, limiting and increasing light exposure seemed really important. I tried it half heartedly and had no jet lag. It was a little surreal. Then I tried it for myself. I live in Asia and America half time and the travel can be brutal. No jet lag the next time. I couldn’t believe how fast I was at meetings and back thinking clearly. The next day. I only experienced small amounts of extra sleepiness at normal bedtime. Convenient. I’m a thinker so I investigated. It’s really all about light exposure and not using caffeine at the wrong times. I have not had jet lag one time I’ve used it!!! I’m using it to travel from London to Dallas as we speak. I have 6 children and my family needs me present sometimes upon arrival. Try it even if skeptically. The first trip was free and sold me on the NASA science behind the recommendations. It’s really subtle and no hardcore advice to fight through sleepiness etc. My life is easier on Timeshifter science.
10 plus 10 time zone jumps with Timeshifter.
11/23/2024

Teimuray

I may have used Timeshifter 12 times. Each time it was transatlantic or at least 8 time zones of travel. I was so skeptical the first time my buddy had it pulled up. It was COVID time and I love coffee. He was still drinking it but only a certain times. I was interested as it didn’t seem like major changes in the travel except small time windows when caffeine was used. Also, limiting and increasing light exposure seemed really important. I tried it half heartedly and had no jet lag. It was a little surreal. Then I tried it for myself. I live in Asia and America half time and the travel can be brutal. No jet lag the next time. I couldn’t believe how fast I was at meetings and back thinking clearly. The next day. I only experienced small amounts of extra sleepiness at normal bedtime. Convenient. I’m a thinker so I investigated. It’s really all about light exposure and not using caffeine at the wrong times. I have not had jet lag one time I’ve used it!!! I’m using it to travel from London to Dallas as we speak. I have 6 children and my family needs me present sometimes upon arrival. Try it even if skeptically. The first trip was free and sold me on the NASA science behind the recommendations. It’s really subtle and no hardcore advice to fight through sleepiness etc. My life is easier on Timeshifter science.

We release updates regularly, and we're always looking for ways to make the experience better. Let's dive into the enhancements you'll find in our latest update: ## Fixed - Small bug fixes - Interface improvements If you have any feedback, or run into issues, please use the live chat in the app. We love to talk.

Version 2.1.39

Jul 2

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