Timeshifter vs GEAR Tech
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
GEAR Tech
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When travellers are in distress GEAR Tech provides direct access to the SPS Global Response Centre. Our team of experts will advise, guide and if required send medical or security support to extract you to safety. Access to GEAR Tech is provided through the GEAR membership programme. The GEAR Membership programme is a Global Emergency Assistance and Response Membership, focussed on providing evacuation from life threatening situations. GEAR Tech is a powerful mobile solution that assists travellers by providing real-time status warnings, alerts, country security, travel and medical information. It allows for push and SMS alerts to help you navigate potential danger, such as extreme weather warnings, political and civil unrest, and terrorism threats. If you are under threat, simply activate the emergency button to communicate with the SPS Global Response Centre who are on hand to assist members. The GEAR membership provides assistance to a full range of situations such as: Violent Crime Political Risks Strikes, Riots & Civil Commotion Terrorism Natural and Man-Made Disasters Hi-Jacking Missing Persons Detention and Extortion Kidnap for Ransom Medical Emergencies and Evacuation Repatriation of mortal remains
Screenshots
Verdict
The clearest difference is in-app purchases: GEAR Tech at none against Timeshifter's 3. Timeshifter's advantage is update cadence (weekly vs every 7 months) and chart position (#28 vs unranked). On price, ads, device support and iOS requirement 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. GEAR Tech asks for nothing beyond the download.
Timeshifter ships an update weekly, GEAR Tech every 7 months. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.
| Parameter | Timeshifter | GEAR Tech |
|---|---|---|
| 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 | Every 7 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #28 — better | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 62 MB | 32 MB |
| Age rating | 17+ | 12+ |
| Developer | Timeshifter Inc. | Safeture AB |
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
GEAR Tech
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
GEAR Tech
No in-app purchases









