Comparison

World Clock & Time Zones vs Time Zone Difference Planner

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

Head to head
About

World Clock & Time Zones

Features
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See what time it is for every teammate right now โ€” and find the one hour that works for all of them before you send the invite. Most world clock apps stop at a list of cities. This one adds the part you actually need: each person's working hours. Give every city a name and a start/end hour, and the app turns that into a 24-hour ring, a live overlap arc, and a ranked list of the best times to meet. No mental math, no "wait, is that their morning?", no spreadsheet. WHAT YOU GET - Know instantly whether a colleague is at their desk or asleep, without asking - See the exact hours when everyone on the team is working, drawn as one glowing arc - Get a ranked shortlist of the best meeting hours, in UTC, for today or any of the next 6 days - Read a color grid of who is working across all 24 hours, so you can spot a compromise slot - Watch every city's clock tick live, with its UTC offset and today's date - Browse cities by region โ€” Americas, Europe, Asia, Pacific โ€” and add one in a tap PERFECT FOR - Remote and distributed teams running standups across continents - Freelancers and agencies juggling clients in other countries - Managers scheduling 1:1s without waking anyone at 3am - Anyone keeping in touch with family or friends living abroad WHY NOT JUST USE THE BUILT-IN CLOCK? The stock clock shows you times. It doesn't know that London stops at 17:00, that Tokyo starts at 10:00, or that your designer in Sydney is already offline. Working hours are the whole point โ€” they are what turns a wall of numbers into an answer. PRIVACY Everything stays on your iPhone. No account, no sign-up, no ads, no tracking, and nothing uploaded anywhere. The app works fully offline. FULL ACCESS Full access unlocks unlimited cities and team members, the live overlap ring, the meeting finder with its best-time ranking and 24-hour grid, and the city explorer. Choose the plan that suits you: weekly, yearly, or a one-time lifetime unlock (pay once, keep it forever). Prices are shown in your local currency before you confirm. Add your first three cities and see your team's overlap in under a minute. Terms of Use (EULA): https://web-levi.web.app/terms Privacy Policy: https://web-levi.web.app/privacy-policy Questions? tphuc.work@gmail.com

About

Time Zone Difference Planner

Features
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PREMIUM โ€” PURCHASE REQUIRED: All features described below are part of Pro and require a purchase: a weekly or yearly auto-renewing subscription, or a one-time lifetime purchase. Stop doing time zone math before every call. TimezoneWorld lays your whole team on one 24-hour band, colors the hours when everyone is actually at their desk, and ranks the best meeting windows for you โ€” so "does 9 AM my time work for Sydney?" is answered the moment you open the app. Most world clocks show you a row of times and leave the hard part to you. TimezoneWorld starts where they stop: you set each city's working hours, and its overlap engine walks the real calendar โ€” daylight saving shifts, half-hour zones like India, even quarter-hour zones like Kathmandu โ€” to find the hours when every city is inside its working day. Tap any hour on the band and see exactly what the clock reads in every city, and on which date. WHAT YOU GET โ€ข A 24-hour overlap band in your own local time โ€” gold hours mean everyone is at their desk; tap one for the exact local time and day in every city โ€ข Best meeting windows ranked by length, so the longest shared stretch is always suggestion number one โ€ข Live clocks for up to 8 cities with an at-their-desk indicator, chosen from 400+ searchable time zones โ€ข Working hours per zone โ€” set Berlin to 8โ€“16 and Sydney to 10โ€“18 and the overlap recalculates instantly โ€ข A daily reminder the moment your team's shared window opens, so you catch everyone while they are online โ€ข One-tap sharing that writes the proposed meeting out in every invitee's own local time and date PERFECT FOR โ€ข Remote teams spread across continents who lose the first ten minutes of every week to scheduling โ€ข Freelancers and agencies booking calls with the US, Europe, and Asia in the same week โ€ข Long-distance families and couples who want to ring while everyone is actually awake โ€ข Travelers who need home time, destination time, and the difference between them at a glance WHY NOT JUST USE A WORLD CLOCK? A world clock tells you it is 3 AM in Tokyo. It does not tell you when Tokyo, Berlin, and Chicago are all working at the same time โ€” that is a search across 24 hours and every zone's own working day, with daylight saving moving the goalposts twice a year. TimezoneWorld runs that search for you and simply shows the answer. PRIVATE BY DEFAULT Everything is computed on your iPhone from the system's own time zone database. No account, no sign-in, no tracking โ€” and the app works fully offline. PREMIUM (PURCHASE REQUIRED) TimezoneWorld is unlocked by a single purchase of your choice: a Weekly subscription, a Yearly subscription, or a one-time Lifetime purchase. Full access includes all 8 zone slots, the 24-hour overlap band, ranked meeting windows, per-zone working hours, the daily overlap reminder, and meeting-time sharing. Add your cities, set the working hours, and let your next "when works for you?" answer itself. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia

Screenshots

World Clock & Time Zones4 screens
Time Zone Difference Planner4 screens

Verdict

The call

The clearest difference is update cadence: World Clock & Time Zones at monthly against Time Zone Difference Planner's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. World Clock & Time Zones sells 3 in-app purchases, starting at $2.99 per 7 days and Time Zone Difference Planner sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

World Clock & Time Zones ships an update monthly, Time Zone Difference Planner every 4 months. Both last shipped on October 31, 2026.

Scorecard1 real difference ยท 5 level
World Clock & Time Zones versus Time Zone Difference Planner: the parameters behind the verdict, then further details
ParameterWorld Clock & Time ZonesTime Zone Difference Planner
PriceFreeFree
Update frequencyMonthly โ€” betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS18.017.0 โ€” better
Further details โ€” not scored
Size11 MB5 MB
Age rating4+4+
DeveloperPhuc PhamLEAN ASIA CO., LTD

In-app purchases

3 purchases

World Clock & Time Zones

Subscriptions2
  • Weekly$2.997 Days
  • Yearly$14.991 Year
One-time1
  • Lifetime Pro$29.99
3 purchases

Time Zone Difference Planner

Subscriptions2
  • World Clock Weekly$2.997 Days
  • Remote Work Yearly$14.991 Year
One-time1
  • UTC Converter Lifetime$29.99

Questions

Is World Clock & Time Zones free?
World Clock & Time Zones is free to download, with in-app purchases available.
Is Time Zone Difference Planner free?
Time Zone Difference Planner is free to download, with in-app purchases available.
Do World Clock & Time Zones or Time Zone Difference Planner have ads?
Neither World Clock & Time Zones nor Time Zone Difference Planner shows ads.
Which is updated more often, World Clock & Time Zones or Time Zone Difference Planner?
World Clock & Time Zones ships an update monthly, and Time Zone Difference Planner every 4 months. Most recently, World Clock & Time Zones was updated on October 31, 2026 and Time Zone Difference Planner on October 31, 2026.

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