Comparison

World Clock Time Zone Widgets vs Timeshifter

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

Head to head
About

World Clock Time Zone Widgets

Easily track the time in multiple cities worldwide with customizable analog or digital clock widgets. Get instant access to local times from your Home Screen, Lock Screen, or Dynamic Island. Includes a conversion tool for comparing times and managing schedules across different zones.

Highlights
  • Analog and digital clock displays
  • Search and manage 10,000+ cities
  • Customizable city names
  • Home, Lock Screen, and Dynamic Island widgets
  • Live Activities support
  • Time zone conversion tool
  • Sunrise/sunset and moon phase information
Features
Currently charting
Read full description

Check the time, anytime! Track the local time in cities across the world, right from your Home Screen, Lock Screen, or Dynamic Island. Add cities to World Clock and select the analog or digital clocks. Then check the World Clock widget whenever you need to know the time. Features: • Attractive analog and digital clock displays, with options to display seconds and 24-hour time. • Simple UI for adding and managing cities. Search or browse 10,000+ cities by name. • Rename a city to create a custom clock, e.g., “Grandma’s House”. • Get your local time using location (GPS). • Widgets are available in many sizes and styles, including Lock Screen, Home Screen, and Today widgets. • Live Activities available on iOS 16.2+ and iPadOS 17+. See the Live Activity on your Apple Watch with iOS 18 and watchOS 11. • Stick a clock or two in the Dynamic Island with Live Activities and see them across all your apps. • Convert tool: set the date and time, compare the times across all your time zones, and then share, create a reminder, or add to your calendar with just a few taps. This is a must-have productivity tool for remote workers or anyone coordinating across time zones. • Includes easy instructions for adding the Widget to your home and lock screens. • Daylight hours shown visually, based on actual sunrise and sunset times. • Look up a location’s sunrise time, moon phase, time zone details, and more. • In-app purchase to remove ads and unlock extra features. One-time purchase — no subscriptions!

About

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.

Highlights
  • Personalized jet lag plans
  • Circadian Time™ advice
  • Practicality Filter™
  • Pre-travel adjustment advice
  • Push notifications for advice
  • Automatic detection of short trips
Features
Read full description

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

Screenshots

World Clock Time Zone Widgets4 screens
Timeshifter4 screens

Verdict

The call

The clearest difference is ads: Timeshifter at none against World Clock Time Zone Widgets's shown. Timeshifter also leads on review sentiment (92% vs 77%) and update cadence (every 9 days vs every 3 weeks). World Clock Time Zone Widgets's advantage is ratings volume (22K vs 2.6K) and device support (4 vs 1). On price, rating, 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. World Clock Time Zone Widgets sells 1 one-off in-app purchase and Timeshifter sells 3 in-app purchases, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for World Clock Time Zone Widgets against 4.7 for Timeshifter. That said, the two scores are not equally well evidenced: World Clock Time Zone Widgets has 22K ratings behind it against 2.6K, so its average is the more settled of the two. Written reviews are what separate them: 77% of World Clock Time Zone Widgets's written reviews are positive against 92% of Timeshifter's.

UpkeepUpdate frequency

World Clock Time Zone Widgets ships an update every 3 weeks, Timeshifter every 9 days. Both last shipped on September 24, 2026.

Scorecard7 real differences · 4 level
World Clock Time Zone Widgets versus Timeshifter: the parameters behind the verdict, then further details
ParameterWorld Clock Time Zone WidgetsTimeshifter
PriceFreeFree
Rating4.7 (22K ratings)4.7 (2.6K ratings)
Positive reviews77.1% of reviews92.0% of reviews — better
Number of ratings22K — better2.6K
Update frequencyEvery 3 weeksEvery 9 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#192#29 — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.4 — better17.0
Further details — not scored
Size158 MB64 MB
Age rating9+17+
DeveloperOverdesigned, LLCTimeshifter Inc.

Customer experience

World Clock Time Zone Widgets

All ratings22,401 ratings
Positive93.0%
Neutral2.8%
Negative4.2%
Written reviews620 reviews
Positive77.1%
Neutral5.5%
Negative17.4%

Timeshifter

All ratings2,635 ratings
Positive90.8%
Neutral2.1%
Negative7.1%
Written reviews1,459 reviews
Positive92.0%
Neutral1.6%
Negative6.4%

User reviews

World Clock Time Zone Widgets

From 22K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Accurate time display
  • 🌍 Helpful for tracking multiple time zones
  • 💡 Customizable widgets
  • 👍 Simple and clean interface

Room to improve

  • 🐛 Widget issues (not updating, displaying incorrect time)
  • 💰 Ads can be intrusive
  • 🐛 Occasional crashes or bugs
  • 🔋 Widget drains battery
  • 🔒 Lack of iCloud sync between devices

Timeshifter

From 2.6K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Effective at reducing jet lag
  • 💡 Personalized recommendations
  • ⏱️ Helpful notifications
  • 🔍 Explains the science behind the recommendations

Room to improve

  • 🕰️ Difficult to follow recommendations during travel
  • 🤒 Melatonin not always readily available
  • 💰 Expensive subscription model

Bugs and requests

World Clock Time Zone Widgets

Reported bugs

3 issues
  • Widget not updating correctly
  • App crashing when adding/editing locations
  • Incorrect time zone offsets for some locations

Requested features

5 requests
  • Add more customization options for widgets
  • Improve widget reliability and update speed
  • Integrate with Apple Watch
  • Add ability to calculate time differences between locations
  • Provide a smaller widget size option

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

In-app purchases

1 purchases

World Clock Time Zone Widgets

One-time1
  • World Clock Pro$4.99
3 purchases

Timeshifter

Subscriptions1
  • Timeshifter$24.991 Year
One-time2
  • discounted jet lag plan$4.99
  • jet lag plan$9.99

Questions

Is World Clock Time Zone Widgets free?
World Clock Time Zone Widgets is free to download, with in-app purchases available.
Is Timeshifter free?
Timeshifter is free to download, with in-app purchases available.
Which has better reviews, World Clock Time Zone Widgets or Timeshifter?
World Clock Time Zone Widgets and Timeshifter are both rated 4.7 out of 5 on the App Store, from 22K and 2.6K ratings respectively.
Do World Clock Time Zone Widgets or Timeshifter have ads?
World Clock Time Zone Widgets shows ads; Timeshifter does not.
Which is updated more often, World Clock Time Zone Widgets or Timeshifter?
World Clock Time Zone Widgets ships an update every 3 weeks, and Timeshifter every 9 days. Most recently, World Clock Time Zone Widgets was updated on September 24, 2026 and Timeshifter on September 24, 2026.
Which is more popular, World Clock Time Zone Widgets or Timeshifter?
World Clock Time Zone Widgets currently peaks at #192 in the App Store charts, and Timeshifter at #29. Chart position reflects recent download velocity rather than total install base.

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