Comparison

StopJetLag vs Flykitt

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

Head to head
About

StopJetLag

This app provides personalized plans to combat jet lag using a science-backed sleep method. It optimizes your schedule based on flight details, sleep patterns, and destination time zones to help you arrive refreshed and productive.

Highlights
  • Flight-Aligned Sleep Method™
  • Personalized jet lag plans
  • Optimized for flight schedules
  • Considers sleep patterns
  • Destination time zone synchronization
  • Advice on sleep, light, food, and caffeine
Features
Read full description

StopJetLag's Flight-Aligned Plans Don't Just Ask, "How Do I Avoid Jet Lag?" Ask the more important question: ■ When is my first realistic opportunity for core sleep in sync with destination-time and what needs to happen before then? That's at the heart of StopJetLag's Flight-Aligned™ travel planning. The best biological time to sleep and the time your flights allow it can be very different. Your body clock doesn't know you have a connection to make. StopJetLag does. ■ Jet Lag Science Has to Work With Your Flights "Sleep now" isn't useful advice when you're landing, clearing immigration, changing terminals or boarding another flight. StopJetLag analyzes your itinerary, connections and normal sleep patterns to identify a critical anchor: your first realistic opportunity for destination-time core sleep. Then your plan coordinates what happens before and after it. ■ StopJetLag's Flight-Aligned™ Sleep Method StopJetLag provides personalized timing for: • Sleep & rest • Bright light exposure & avoidance • Meals—timing, type & size • Caffeine use & avoidance • Light exercise • Optional melatonin • Transitioning to destination time These recommendations aren't the endpoint-Their coordination with your flights is of primary importance. A sleep recommendation can't ignore when you have to board. Caffeine can't ignore when you need to sleep. None should act as though your connections don't exist. ■ Every Connection Changes What Is Possible An ideal time to sleep is useless if you have to be awake to change planes. A sleep opportunity can disappear because you need to deplane, clear immigration and board again. That's why connections aren't footnotes in a StopJetLag Plan. They help determine the plan. The goal isn't a perfect schedule on paper. It's one you can actually follow. ■ What Happens Before Core Sleep Matters The hours before your first destination-time core sleep matter—when you sleep, stay awake, seek or avoid bright light, eat, use caffeine, exercise and, if you choose, take melatonin. StopJetLag coordinates these influences with your itinerary so they work together rather than as disconnected jet lag tips. The flight itself becomes part of your adjustment strategy. ■ When to Sleep—and When Your Flights Won't Let You. You need enough sleep. Your body clock also needs to move toward destination time. Getting every possible hour of sleep isn't necessarily the same as sleeping at the most useful times. StopJetLag identifies practical sleep opportunities while keeping you awake when your itinerary requires it. The question isn't simply, "Can I sleep?" It's "Is this the right sleep opportunity for where my body clock needs to go next?" ■ Built Around Your Real Trip Your plan can account for departures, arrivals, connections, multi-stop itineraries, normal sleep patterns, practical sleep opportunities, destination time and important events you provide. Trip Notes address itinerary-specific timing issues. StopJetLag Mobile keeps your recommendations available while you travel. ■ Why StopJetLag's Flight-Aligned™ Plans Matter Most jet lag advice tells you what affects your body clock. The harder problem is knowing when you can realistically use those influences. Jet lag advice asks what your body needs. StopJetLag's Flight-Aligned™ planning asks when your journey will actually let you do it. StopJetLag builds your plan around the answer. ■ What Travelers and the Press Have Said Katie Couric Show: "There's a great service called StopJetLag" United Airlines Hemispheres: "The best approach is StopJetLag" Clare Vooght—iNews: "The best app by a million (air) miles...was StopJetLag" ■ StopJetLag on Your Next Trip Don't settle for jet lag advice that assumes your journey will cooperate. Start with your flights. Find your first realistic opportunity for destination-time core sleep. Coordinate what happens before it. Protect what happens after it. That's StopJetLag's Flight-Aligned™ travel planning.

About

Flykitt

This AI-powered travel companion offers personalized recommendations for sleep, jet lag, workouts, and healthy eating. It analyzes your preferences and available resources to provide tailored advice for business and leisure travelers.

Highlights
  • Personalized sleep and jet lag advice
  • AI-driven workout generation
  • Healthy restaurant and menu analysis
  • Customized meal recommendations
  • Travel fitness optimization
Features
Read full description

Developed based on research with Navy SEALs and fighter pilots, loved by pro sports teams, and optimized for business and leisure travelers, Flykitt's healthy-travel AI leverages unique insights across sleep, inflammation, workout optimization, and even commercial food preparation to provide the most tailored and effective recommendations in the world for sleep, jet lag, travel workouts, and finding healthy food on the road. Foodie – Smart Restaurant Choices Eat healthier when you travel. Just upload a restaurant name or menu, and Foodie will analyze your options based on your taste profile and suggest the healthiest picks personalized just for you. Fit – On Demand Gym Workouts Traveling with limited time or unfamiliar equipment? Take a picture of a gym setup and Fit will generate a customized workout using what's available. Contact Us: flykitt.com/pages/contact Terms of Service: flykitt.com/pages/terms-conditions Privacy Policy: flykitt.com/pages/privacy

Screenshots

StopJetLag4 screens
Flykitt4 screens

Verdict

The call

The clearest difference is review sentiment: Flykitt at 77% against StopJetLag's 8%. Flykitt also leads on rating (4.8 vs 2.3) and update cadence (weekly vs every 2 months). On price, ads, in-app purchases and monetization model 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. StopJetLag sells 1 one-off in-app purchase and Flykitt sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Flykitt holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: Flykitt has 242 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 8% of StopJetLag's written reviews are positive against 77% of Flykitt's.

UpkeepUpdate frequency

StopJetLag ships an update every 2 months, Flykitt weekly. The most recent releases landed on September 22, 2026 and September 27, 2026 respectively.

Scorecard4 real differences · 6 level
StopJetLag versus Flykitt: the parameters behind the verdict, then further details
ParameterStopJetLagFlykitt
PriceFreeFree
Rating2.3 (12 ratings)4.8 (242 ratings) — better
Positive reviews7.7% of reviews76.9% of reviews — better
Number of ratings12242 — better
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size24 MB56 MB
Age rating12+17+
DeveloperStopJetLagKitt Bio Inc.

Customer experience

StopJetLag

All ratings12 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews52 reviews
Positive7.7%
Neutral0.0%
Negative92.3%

Flykitt

All ratings242 ratings
Positive93.0%
Neutral2.1%
Negative5.0%
Written reviews26 reviews
Positive76.9%
Neutral11.5%
Negative11.5%

Bugs and requests

StopJetLag

Not enough reviews yet to summarise bugs or requests.

Flykitt

Reported bugs

3 issues
  • App requires internet connection
  • Error creating account ('notinternetconnection')
  • Scheduling errors with flight delays

Requested features

6 requests
  • Allow for last-minute schedule changes
  • Add events to iCalendar
  • Display both time zones on calendar/todo list
  • Option to reorder via the app
  • Add diet reminders back
Show 1 more
  • Show percentage of completion

In-app purchases

1 purchases

StopJetLag

One-time1
  • Access Your StopJetLag PlanFree
4 purchases

Flykitt

Subscriptions4
  • Flykitt Pro Light Monthly$4.991 Month
  • Flykitt Pro Monthly$12.991 Month
  • Flykitt Pro Light Yearly$49.991 Year
Show 1 more
  • Flykitt Pro Yearly$119.991 Year

Questions

Is StopJetLag free?
StopJetLag is free to download, with in-app purchases available.
Is Flykitt free?
Flykitt is free to download, with in-app purchases available.
Which has better reviews, StopJetLag or Flykitt?
Flykitt is rated higher. StopJetLag averages 2.3 out of 5 from 12 ratings, while Flykitt averages 4.8 from 242 ratings.
Do StopJetLag or Flykitt have ads?
Neither StopJetLag nor Flykitt shows ads.
Which is updated more often, StopJetLag or Flykitt?
StopJetLag ships an update every 2 months, and Flykitt weekly. Most recently, StopJetLag was updated on September 22, 2026 and Flykitt on September 27, 2026.

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