Comparison

Sphere Time vs ONE WATCH

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
Read full description

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

ONE WATCH

Features
Read full description

ONE WATCH shows you the local time, live weather, and the perfect moment to call - for everyone who matters to you. Across iPhone, iPad, Apple Watch, and home-screen widgets. +++ KNOW WHEN TO CALL A traffic-light indicator tells you in one glance: green when it's a good time, orange when it's borderline, red when it's the middle of the night. Set per-contact call windows, weekday availability, and time-zone preferences. +++ PHOTO WIDGETS Add your contacts with their real photo and see them on your home screen and Apple Watch. World clock, but personal. +++ LIVE WEATHER Each contact card shows the current weather at their location, powered by Apple Weather. Useful for travel planning, meeting coordination, or just being a thoughtful friend. +++ APPLE WATCH + COMPLICATIONS Full Apple Watch app with all complication slots — see your people on every watch face. +++ EVENT CONVERTER Plan meetings across time zones. Pick a moment, see what time it is for everyone. +++ 12 LANGUAGES English, German, Spanish, Portuguese, French, Italian, Dutch, Japanese, Korean, Chinese, Hindi, Arabic. +++ LIGHT & DARK MODE Beautifully designed for both — choose your preference or follow the system. +++ PRIVACY FIRST No accounts. No tracking. No analytics. No ads. Contact data stays on your device, never uploaded anywhere. Weather data is fetched via Apple WeatherKit. +++ ONE WATCH PREMIUM Unlock home-screen widgets, Apple Watch app + complications, multiple contact photos, weekday selector, per-contact availability toggle, and analog clock styles. Choose monthly, yearly, or a one-time lifetime purchase. Family Sharing supported. Privacy Policy: https://onewatch.onepage.me/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Made in Austria.

Screenshots

Sphere Time4 screens
ONE WATCH4 screens

Verdict

The call

The clearest difference is in-app purchases: Sphere Time at none against ONE WATCH's 3. Sphere Time also leads on iOS requirement (9.3 vs 18.0). ONE WATCH's advantage is update cadence (every 3 days vs every 5 weeks). 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. ONE WATCH sells 3 in-app purchases, starting at $2.99 per month. Sphere Time asks for nothing beyond the download.

UpkeepUpdate frequency

Sphere Time ships an update every 5 weeks, ONE WATCH every 3 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
Sphere Time versus ONE WATCH: the parameters behind the verdict, then further details
ParameterSphere TimeONE WATCH
PriceFreeFree
Rating4.2 (10 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS9.3 — better18.0
Further details — not scored
Size33 MB52 MB
Age rating4+4+
DeveloperSphere Consulting, Inc.Johann Szebeni

In-app purchases

None

Sphere Time

No in-app purchases

3 purchases

ONE WATCH

Subscriptions2
  • Premium Monthly$2.991 Month
  • Premium Yearly$24.991 Year
One-time1
  • Premium Lifetime$99.99

Questions

Is Sphere Time free?
Sphere Time is free to download, with no in-app purchases.
Is ONE WATCH free?
ONE WATCH is free to download, with in-app purchases available.
Do Sphere Time or ONE WATCH have ads?
Neither Sphere Time nor ONE WATCH shows ads.
Which is updated more often, Sphere Time or ONE WATCH?
Sphere Time ships an update every 5 weeks, and ONE WATCH every 3 days. Most recently, Sphere Time was updated on November 2, 2026 and ONE WATCH on October 31, 2026.

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