Timeshifter

Timeshifter

The #1 Jet Lag App

2.6K ratings
1406 reviews
#31 in top-grossing Travel
💪 Health & Fitness
✈️ Travel
Free
In-App Purchases

Details

  • Released
  • Updated
  • June 20, 2018
  • July 29, 2026

Features

Timeshifter video #1 for iPhone
Timeshifter screenshot #2 for iPhone
Timeshifter screenshot #3 for iPhone
Timeshifter screenshot #4 for iPhone
Timeshifter screenshot #5 for iPhone
Timeshifter screenshot #6 for iPhone
Timeshifter screenshot #7 for iPhone
Timeshifter screenshot #8 for iPhone
Timeshifter screenshot #9 for iPhone
Timeshifter screenshot #10 for iPhone
🖼️Get Icon
Icons↘︎

About

This app provides personalized plans to combat jet lag based on circadian science. It offers practical advice for light exposure and avoidance to help you adjust to new time zones quickly and reduce symptoms like insomnia and sleepiness.

Personalized jet lag plans
Circadian Time™ advice
Practicality Filter™
Pre-travel adjustment advice
Push notifications for advice
Automatic detection of short trips
Show original description

What users say

See all reviews

What's New in Timeshifter

2.5.2

July 29, 2026

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: ## Added - Option to delete greyed out flights - Option to select date when replacing flights - Overall design and performance improvements If you have any feedback, or run into issues, please use the live chat in the app. We love to talk.

More

Subscription plans

Timeshifter

Unlimited jet lag plans for 1 year

$24.991 Year
How to cancel Timeshifter subscription ⁉️
2

In-App Purchases

$9.99

jet lag plan

1 jet lag plan (one-way or roundtrip)

Charts

Top Grossing

📊 31

Travel

The app has maintained its position at 31 recently.

Last updated on August 8, 2026.

User reviews

Worked great!

I traveled from Philly to Korea (13 hour difference) and back and followed the advice from the app 98%. I had zero jet lag!

It worked!

At first, I was unsure about this app but traveling to Australia from the USA, I had nothing to lose. It worked wonderfully. I’m not sure how it will work going home, but I’m definitely going to give it a try.

Fantastic!

I did a trip to Europe and back from Sydney. No jet lag on arrival in Europe. Usually the trip back makes re-adjusting difficult, but I had minimal jet lag and the following days were fine. A top app and will use it now for any time zone changes.

It actually works

When I travel London to Sydney i usually have awful jet lag for about 10 days. I tried Timeshifter and stuck to the plan (even using a sun lamp under my sleeping bag on the flight while everyone was asleep!) and about 50 hours after arriving in Sydney I felt normal again. It’s not fun sticking to the plan sometimes when all you want is sleep but it is so worth it. I’ve already subscribed for my trip back to the UK.
Show more

Really works

As someone who suffers really badly from jet lag and travels a lot, this app is a game changer. I have travelled from Australia and China using it and while I have had some moderate effects when not following strictly - waking up a few times at night but then going back to sleep- they have cleared by day 3. Amazing. Highly recommend.
Show more

Developer apps

Featured on

User experience

🐞

Reported Bugs

2 issues

App crashing or getting stuck on a white screen

Bug

Issues with account login and data loss

Bug

Requested Features

3 requests

Ability to adjust plan for unexpected schedule changes

Feature

Integration with fitness trackers or sleep apps

Feature

Recommendations for meal timing and nutrition

Feature

FAQ

What does the Timeshifter app do?

Timeshifter creates personalized jet lag plans based on scientific principles of circadian rhythms. It helps you adjust your body's internal clock to new time zones by providing specific advice on when to expose yourself to light and when to avoid it, aiming to reduce symptoms like insomnia and sleepiness.

How does Timeshifter use circadian science?

The app leverages the understanding that light is the primary cue for your body's circadian clock. It provides tailored recommendations for light exposure and avoidance, timed precisely to help your internal clock synchronize with your destination's time zone, addressing the root cause of jet lag.

Is Timeshifter free to use?

Your first jet lag plan is provided for free with no commitment. After that, you can choose to purchase individual plans as needed or opt for a subscription to get unlimited plans for all your travels.

What kind of advice does the app offer?

The app offers practical advice that considers your real-world schedule, thanks to its Practicality Filter™. This includes guidance on light exposure, sleep timing, and pre-travel adjustments to help you prepare for your journey and minimize jet lag symptoms.

Who is Timeshifter intended for?

Timeshifter is designed for healthy adults aged 18 and older who frequently travel across time zones. It is not intended for pilots and flight crew on duty. The app aims to help users conquer jet lag and improve their travel experience.