Timeshifter vs Vikasa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timeshifter
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
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Reduce jet lag with personalized plans based on the latest sleep and circadian science. Timeshifter creates a plan for every flight and time zone, tailored to your chronotype, sleep pattern, itinerary and personal preferences. Used by NASA astronauts, F1 teams, NBA players, Olympic athletes and frequent travelers - and rated "as good as it's going to get" by The New York Times. - The Wall Street Journal: "Indispensable" - Condé Nast Traveler: "Say goodbye to jet lag" - WIRED: "Will help reset your [circadian] clock" - Travel + Leisure: "Game-changer" WHAT YOU GET Jet lag plans that show exactly when to seek light, when to avoid it, when to sleep and when to nap, and how to use melatonin (optional) and caffeine correctly (optional) - hour by hour. PROVEN RESULTS Based on ~130,000 post-flight surveys: - 96.4% of travelers who followed their plan avoided severe jet lag entirely. - Travelers who ignored the advice were 6.2x more likely to experience severe jet lag - and 14.1x more likely to experience very severe jet lag. YOUR FIRST PLAN IS FREE Your first jet lag plan is free, with no commitment. After your free plan, you can buy plans as you go for US$9.99 per plan, or subscribe for unlimited plans at US$24.99. KEY FEATURES - Circadian Time™: advice timed to your circadian 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 JET LAG MYTHS VS. CIRCADIAN SCIENCE Jet lag cannot be fixed with generic sleep advice, exercise, hydration, dietary supplements, special diets or fasting. None of these reset your circadian clock quickly to a new time zone. Light is the key time cue that resets your circadian clock. Individually-timed light exposure and light avoidance - based on your chronotype, your normal sleep pattern and your itinerary - is the only way to adjust to a new time zone quickly. Get the timing wrong and jet lag gets worse. Getting that timing right is complex and unintuitive, which is why generic advice fails. Timeshifter works as your jet lag calculator and planner, doing that timing for you. WHY WE MADE TIMESHIFTER We built Timeshifter to make circadian science accessible and help you apply it to reduce jet lag. It targets the underlying cause of jet lag - the disruption of your circadian clock - and reduces the symptoms that come with it, including insomnia, daytime sleepiness, fatigue and digestive discomfort. Timeshifter was developed with Dr. Steven W. Lockley, a Harvard Medical School faculty member for over 20 years and former neuroscientist at Brigham and Women's Hospital. He is an international authority on circadian rhythms and sleep, with more than 30 years of clinical research experience in humans, and works with NASA astronauts and mission controllers, F1 teams, NBA players, national soccer teams and Olympic athletes. Whether you are crossing one time zone or ten, on a long-haul flight or a quick turnaround, Timeshifter gives you a jet lag plan built for that trip. Download Timeshifter and make jet lag history on your next flight. 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/legal/terms-of-use Privacy Policy: www.timeshifter.com/legal/privacy-policy
Vikasa
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Enhance your travel experience at your fingertips with our app. Features include: - Live Chat - Facility and service bookings - Access to newest promotions - Up-to-date hotel information Located on the picturesque island of Koh Samui in the Gulf of Thailand, Vikasa is a yoga and wellness retreat focused on supporting and inspiring people to create transformation and personal growth. In Sanskrit, Vikasa means evolution. Our diverse range of offerings has been designed to meet people at every level on their wellness journey. Regardless of background or experience, our strength lies in our ability to cater to all needs and goals. The Vikasa Academy offers a diverse range of beginner, advanced and specialised training programs that meet and exceed Yoga Alliance requirements. Perched high on a clifftop, our Black Lotus Sala looks across the sparkling ocean with unfettered views of the golden sunrise. Vikations are a classic yoga vacation available year round which blends, yoga, healthy meals and unique wellness experiences. Guests can opt for ethical curated adventures around the island, enjoy rejuvenating spa therapies, or simply enjoy lounging by the pool with a cold coconut in hand. Vikasa Signature Retreats are week-long retreats led by our Senior Vikasa teachers - Balance, Evolve, Silent, Escape, Thrive and Move. Each one has its own theme and focus, allowing guests to find a retreat that fits their yoga goals. Personal Programs invite guests to focus on sustainable lifestyle change, supported by their own Wellness Coach. Each program- Begin, Deepen,Vitox and Recharge- includes private coaching sessions, private yoga sessions, specialised treatments and therapies and nourishing healthy meals. For those not staying onsite, options are also available to allow people to get a taste for what Vikasa offers. The Vikasa Life Cafe offers an eclectic menu of healthy and flavoursome cuisine. We prioritise natural whole foods, sourcing local and organic ingredients where possible to create dishes that are as nutritiously dense as they are delicious. Locally brewed, custom made coffee, signature smoothies and juices, salads, mains and guilt-free desserts are all available. Meals are enjoyed with spectacular views across the ocean and island Landscape. For those looking to experience a Vikasa Yoga Class, our White Prana Sala holds daily yoga classes, led by our experienced and passionate Vikasa-trained yoga teachers. Classes are suited to all levels with teachers on hand to modify, adjust and support students in each pose. Vikasa Complete Classes are based on traditional Hatha yoga with a meditation, pranayama and asana component to ensure the most effective and beneficial results on both
Screenshots
Verdict
The clearest difference is in-app purchases: Vikasa at none against Timeshifter's 3. Vikasa also leads on iOS requirement (15.6 vs 17.0). Timeshifter's advantage is update cadence (weekly vs monthly) and chart position (#28 vs unranked). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Timeshifter sells 3 in-app purchases, starting at $24.99 per year. Vikasa asks for nothing beyond the download.
Timeshifter ships an update weekly, Vikasa monthly. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.
| Parameter | Timeshifter | Vikasa |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.7K ratings) — better | — |
| Positive reviews | 91.8% of reviews | — |
| Number of ratings | 2.7K — better | — |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #28 — better | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 62 MB | 78 MB |
| Age rating | 17+ | 4+ |
| Developer | Timeshifter Inc. | HANDIGO COMPANY LIMITED |
Bugs and requests
Timeshifter
Reported bugs
2 issues- App crashing or getting stuck on a white screen
- Issues with account login and data loss
Requested features
3 requests- Ability to adjust plan for unexpected schedule changes
- Integration with fitness trackers or sleep apps
- Recommendations for meal timing and nutrition
Vikasa
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Timeshifter
- Timeshifter$24.991 Year
- discounted jet lag plan$4.99
- jet lag plan$9.99
Vikasa
No in-app purchases
Questions
Is Timeshifter free?
Is Vikasa free?
Do Timeshifter or Vikasa have ads?
Which is updated more often, Timeshifter or Vikasa?
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