Comparison

Sphere Time vs Time Zone Difference Planner

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

Head to head
About

Sphere Time

Easily convert time zones to stay connected globally. This app helps frequent travelers, those with international family, or professionals working across different regions understand the time in any city worldwide. It offers an intuitive interface for seamless time zone management.

Highlights
  • Intuitive time zone conversion
  • Supports multiple time zones simultaneously
  • Works offline with cached data
  • Global city database
  • Reduces meeting time zone confusion
Features
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Powerful time zone converter for global citizens Frequent traveler? Family in other countries? Working across multiple time zones? Need to always know the time in other cities? Make the world a smaller place. Always know the time anywhere in the world. Connect more intelligently with family, business partners and customers. Important features include: Jump between time zones with a simple and intuitive interface. End time zone confusion in meetings. Multiple time zones supported for comparison Works in airplane mode with cached data Add any of the cities available world-wide

About

Time Zone Difference Planner

Features
Read full description

PREMIUM — 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 — 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 — daylight saving shifts, half-hour zones like India, even quarter-hour zones like Kathmandu — 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 • A 24-hour overlap band in your own local time — gold hours mean everyone is at their desk; tap one for the exact local time and day in every city • Best meeting windows ranked by length, so the longest shared stretch is always suggestion number one • Live clocks for up to 8 cities with an at-their-desk indicator, chosen from 400+ searchable time zones • Working hours per zone — set Berlin to 8–16 and Sydney to 10–18 and the overlap recalculates instantly • A daily reminder the moment your team's shared window opens, so you catch everyone while they are online • One-tap sharing that writes the proposed meeting out in every invitee's own local time and date PERFECT FOR • Remote teams spread across continents who lose the first ten minutes of every week to scheduling • Freelancers and agencies booking calls with the US, Europe, and Asia in the same week • Long-distance families and couples who want to ring while everyone is actually awake • 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 — 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 — 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

Sphere Time4 screens
Time Zone Difference Planner4 screens

Verdict

The call

The clearest difference is in-app purchases: Sphere Time at none against Time Zone Difference Planner's 3. Sphere Time also leads on update cadence (every 5 weeks vs every 4 months) and iOS requirement (9.3 vs 17.0). On price, ads and device support 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. Time Zone Difference Planner sells 3 in-app purchases, starting at $2.99 per 7 days. Sphere Time asks for nothing beyond the download.

UpkeepUpdate frequency

Sphere Time ships an update every 5 weeks, Time Zone Difference Planner every 4 months. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Sphere Time versus Time Zone Difference Planner: the parameters behind the verdict, then further details
ParameterSphere TimeTime Zone Difference Planner
PriceFreeFree
Rating4.2 (10 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS9.3 — better17.0
Further details — not scored
Size33 MB5 MB
Age rating4+4+
DeveloperSphere Consulting, Inc.LEAN ASIA CO., LTD

In-app purchases

None

Sphere Time

No in-app purchases

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 Sphere Time free?
Sphere Time is free to download, with no in-app purchases.
Is Time Zone Difference Planner free?
Time Zone Difference Planner is free to download, with in-app purchases available.
Do Sphere Time or Time Zone Difference Planner have ads?
Neither Sphere Time nor Time Zone Difference Planner shows ads.
Which is updated more often, Sphere Time or Time Zone Difference Planner?
Sphere Time ships an update every 5 weeks, and Time Zone Difference Planner every 4 months. Most recently, Sphere Time was updated on November 2, 2026 and Time Zone Difference Planner on October 31, 2026.

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