Comparison

JetShift vs Time Zone Shifter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

JetShift

This app uses circadian rhythm science to help your body adjust to new time zones quickly. It provides personalized guidance on light exposure, sleep, melatonin, and caffeine intake to minimize jet lag symptoms like fatigue and sleeplessness.

Highlights
  • Circadian rhythm science
  • Personalized light exposure timing
  • Melatonin scheduling
  • Stepwise sleep shifts
  • Smart caffeine intake
  • Offline functionality
  • Calendar integration
Features
Read full description

Whether you're a frequent flyer, international traveler, or planning your first long-haul trip, JetShift helps your body adapt to new time zones quickly and efficiently. Say goodbye to sleepless nights, daytime fatigue, and foggy mornings. --- Built on Circadian Rhythm Science JetShift applies cutting-edge research on the circadian cycle, your body’s internal clock that regulates sleep, mood, and energy. Travel disrupts this rhythm, but with precise timing of light, sleep, melatonin, and caffeine, JetShift guides you back on track. --- How JetShift Works: - Light exposure timing: Light is your strongest cue for shifting your internal clock. JetShift tells you exactly when to seek or avoid light. - Melatonin scheduling: The app helps you take melatonin at the right time, supporting your body's natural adjustment. - Stepwise sleep shifts: Gradually adjust your sleep schedule before or after your flight to reduce the shock of sudden changes. - Smart caffeine intake: Stay alert without disrupting your sleep by following optimal caffeine windows. All plans are personalized, easy to follow, and automatically synced to your flight and calendar. --- Perfect For: - Long-haul travelers - Business professionals - Athletes and performers - Jet setters and digital nomads Why JetShift? - Scientifically validated strategies - The easiest solution to skip jetlag - Fits into any schedule - automatically adapted to your calendar - Works offline during your flight - Fully adaptable for multi-stop and return trips --- The easiest solution to skip jetlag. Let JetShift help you feel great, wherever you land. Download now and give it a try on your next trip! --- Terms of Use: https://www.jet-shift.com/terms-and-conditions Privacy Policy: https://www.jet-shift.com/privacy-policy

About

Time Zone Shifter

This app creates a personalized schedule to minimize jet lag based on your travel itinerary and normal routine. It provides guidance on sleep, light exposure, and caffeine intake to help you adjust to new time zones.

Highlights
  • Personalized jet lag schedule
  • Sleep and wake time recommendations
  • Light exposure guidance
  • Caffeine timing advice
  • Nap and alertness recommendations
  • Offline-capable planning
Features
Currently charting
Read full description

Travel across time zones with a plan built around your flights and your normal routine. JetSync creates a personalized jet lag schedule for the moments that matter: before departure, during travel, and after arrival. Add a one-way or round-trip itinerary by flight number, then follow clear recommendations in one timeline. YOUR PERSONAL TRAVEL SCHEDULE • Sleep and wake times matched to your route • Bright-light and dim-light guidance • Caffeine windows and times to avoid it • Short nap and alertness recommendations • Optional melatonin timing guidance, with no dosage advice BUILT AROUND YOUR TRIP JetSync uses your usual bedtime, wake time, chronotype, sleep regularity, ability to sleep in flight, caffeine habits, light sensitivity, nap preference, and travel priorities to shape the plan. EASY TO FOLLOW See the current recommendation, upcoming actions, local time-zone changes, and practical details in the Today timeline. Turn on reminders to stay on schedule without constantly checking your phone. READY WHEN PLANS CHANGE Edit flight times, replace or remove flights, or add connections. When supported, JetSync revises the remaining schedule while preserving completed actions. PRIVATE, PRACTICAL, AND OFFLINE-CAPABLE Planning is deterministic and runs on device after flight details are available. Saved trips and plans remain available without a network connection. JetSync is a wellness planning tool, not medical care. It does not diagnose, treat, or cure medical conditions. Optional melatonin guidance covers timing only and never provides dosage advice. PRIVACY Your travel data is personal. TripScout is designed to help you manage your trips clearly and securely while keeping you in control of your information. SUBSCRIPTION DETAILS • Subscribe for unlimited access to all features. • Subscriptions are billed automatically based on the plan you select. • Payment will be charged to your iTunes Account at confirmation of purchase. • Your subscription automatically renews unless auto-renewal is turned off at least 24 hours before the end of the current period. • You will be charged for renewal within 24 hours prior to the end of the current period. • You can cancel your subscription anytime through Account Settings without any cancellation fee. • You can use your subscription on any device registered with your Apple ID. Support islapixelstudio@gmail.com Privacy Policy https://islapixelstudio.github.io/jetsync-legal/privacy Terms of Use (Apple Standard EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula

Screenshots

JetShift4 screens
Time Zone Shifter3 screens

Verdict

The call

The clearest difference is rating: JetShift at 5.0 against Time Zone Shifter's 4.7. JetShift also leads on iOS requirement (15.0 vs 17.0). Time Zone Shifter's advantage is ratings volume (18 vs 1) and chart position (#191 vs unranked). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. JetShift sells 3 in-app purchases, starting at $4.99 per month and Time Zone Shifter sells 6 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

JetShift holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Time Zone Shifter has 18 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 13, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 7 level
JetShift versus Time Zone Shifter: the parameters behind the verdict, then further details
ParameterJetShiftTime Zone Shifter
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (18 ratings)
Positive reviews—0.0% of reviews
Number of ratings118 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
Best chart rank—#191 — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size71 MB113 MB
Age rating17+4+
DeveloperJannik ObenhoffNataliia Litvinova

Customer experience

JetShift

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Time Zone Shifter

All ratings16 ratings
Positive87.5%
Neutral6.3%
Negative6.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

JetShift

Subscriptions3
  • JetShift Super - Monthly7 Days trial$4.991 Month
  • JetShift Super Annual Discount7 Days trial$29.991 Year
  • JetShift Super - Annual7 Days trial$49.991 Year
6 purchases

Time Zone Shifter

Subscriptions6
  • Premium3 Days trial$6.997 Days
  • Premium$7.991 Month
  • Premium$19.991 Year
Show 3 more
  • Premium3 Days trial$19.991 Year
  • Premium$29.991 Year
  • Premium3 Days trial$29.991 Year

Questions

Is JetShift free?
JetShift is free to download, with in-app purchases available.
Is Time Zone Shifter free?
Time Zone Shifter is free to download, with in-app purchases available.
Which has better reviews, JetShift or Time Zone Shifter?
JetShift is rated higher. JetShift averages 5.0 out of 5 from 1 ratings, while Time Zone Shifter averages 4.7 from 18 ratings.
Do JetShift or Time Zone Shifter have ads?
Neither JetShift nor Time Zone Shifter shows ads.
Which is updated more often, JetShift or Time Zone Shifter?
JetShift ships an update fortnightly, and Time Zone Shifter fortnightly. Most recently, JetShift was updated on October 13, 2026 and Time Zone Shifter on October 29, 2026.

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