Timeshifter
Personalized light, sleep, and caffeine plans for jet lag and shift work.
- What it is
- Personalized light, sleep, and caffeine plans for jet lag and shift work.
- Best for
- Jet lag management · Adaptation to shift work · Circadian rhythm optimization
- Platforms
- iOS · Android
Strengths
- Personalized light, sleep, and caffeine plans
- Useful for long-haul flights and shift work
Weak points
- English only
- Subscription or per-trip purchase
What is Timeshifter?
Timeshifter is a mobile application designed to help users manage the effects of jet lag and shift work. It uses principles of circadian science to provide personalized plans aimed at optimizing sleep, alertness, and recovery based on individual biological rhythms.
At a glance
- Type
- App
- Platforms
- iOS, Android
- Subscription required
- No
- Free trial
- Yes
- French
- No
- Availability
- France, Canada
- Uses AI
- Yes
- Evidence level
- No known evidence
This information is indicative and may change: only the publisher's own website is authoritative.
What the AI does: The application uses algorithms based on circadian science to generate personalized plans for light exposure, sleep, and caffeine consumption.
Who uses Timeshifter?
Frequent travelers
Individuals crossing multiple time zones who want to anticipate the effects of jet lag.
Shift workers
Professionals working rotating or night shifts seeking to improve their sleep quality and alertness.
Key features
Circadian Time
Personalized advice based on the user's biological clock to schedule specific actions.
Practicality Filter
Adjustment of recommendations to make the advice applicable in real and daily situations.
Quick Turnaround
Automatic detection of short-duration trips to adapt the plans accordingly.
Pricing
Jet lag plans are US$9.99 each or US$24.99 per year. Shift work is US$6.99 per month or US$69.99 per year. Canadian pricing is not explicitly published.
Pricing recorded on November 1, 2026. Excluding taxes and shipping. Prices change: the amount that applies is the one shown by the publisher's own checkout.
Jet lag (Single plan)
US$9.99
First plan is free, then pay-per-use.
- Personalized plan
- Full access
Jet lag (Unlimited)
US$24.99 / year
Annual subscription for unlimited plans.
- Unlimited plans
- Full access
Shift work
US$6.99 / month or US$69.99 / year
30-day free trial included.
- Personalized plans
- Full access
The app offers a first plan for free to test the service. Occasional users may prefer the single-use purchase, while frequent travelers or shift workers may choose the annual subscription.
Use cases
Transcontinental travel
The user enters their flight itinerary into the application.
Outcome: Generation of a personalized plan to reduce symptoms related to jet lag.
Night work
The user integrates their work schedule into the application.
Outcome: Advice on adjusting sleep and alertness periods to support health and quality of life.
How it works in practice
Creating a travel plan
- 1Entry of flight details and time zones
- 2Consultation of personalized recommendations
- 3Application of suggested actions at specified times
In your daily routine
Mobile compatibility
The application is available on iOS and Android platforms.
Known limits
Non-medical use
The application is not intended to diagnose, treat, cure, or prevent any disease.
Target audience
The service is designed for healthy adults aged 18 years or older.
Consider something else if
- General sleep tracking applications
- Specialized sleep medicine consultations
- Calendar management tools without a circadian component
How to use it
Initial configuration
Download the app and create an account to access planning tools.
Following recommendations
Follow the instructions provided by the app regarding optimal times for light exposure or caffeine consumption.
Frequently asked questions
Is the app available in French?+
No, the app interface is currently in English.
Is there a charge for the first plan?+
No, the first jet lag plan is offered for free without obligation.
Does the app replace medical advice?+
No, Timeshifter does not replace a medical diagnosis or treatment.
Which devices can it be used on?+
The application is available on iOS and Android smartphones.
What are the pricing models?+
It is possible to purchase single plans or subscribe to an annual plan for unlimited access.
Sources
Evidence level shown: No known evidence
No published controlled trials on the application itself. The method relies on light chronobiology; systematic reviews of non-pharmacological interventions for jet lag show inconsistent benefits.
No published source specific to this product has been identified so far.
Background on the approach
General references on the category or technology: they do not cover this specific product.
These references cover the approach or technology, not an evaluation of the product by us. None of these links is an affiliate link. Read our method.
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