Comparison

World Clock vs SunArc

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

Head to head
About

World Clock

Features
Read full description

World Clock - Time Zones β€” Your all-in-one world clock & time zone converter Instantly check the current time zone anywhere in the world. Whether you're scheduling a meeting across US time zones, planning international travel, or keeping in touch with family overseas, this world clock app gives you accurate, live time zone information at a glance. WORLD CLOCK, MADE SIMPLE See the live time in every US time zone β€” Pacific, Mountain, Central, and Eastern β€” plus Alaska, Hawaii, and Atlantic time, all updating in real time. INTERACTIVE TIME ZONE MAP Explore a color-coded, interactive map for USA, North America, South America, Europe, Australia, and Asia. Tap any region to instantly see its current local time. TIME ZONE CONVERTER Compare time zones side-by-side β€” perfect for scheduling calls with remote teams, coordinating travel plans, or catching a live event happening in another part of the world. COORDINATED UNIVERSAL TIME (UTC) Always know the current UTC time, kept accurate and synced automatically. DEVICE CLOCK & DRIFT CHECK See your device's own local time with a clean analog clock display. 12-HOUR / 24-HOUR TOGGLE Switch instantly between 12-hour and 24-hour time formats to match your preference. KEY FEATURES: - Live world clock with real-time updates - Time zone converter for USA & international zones - Interactive, color-coded time zone map - Covers all major regions: USA, North America, South America, Europe, Australia, Asia - UTC / GMT time always visible - 12-hour and 24-hour display toggle - Clean, modern, easy-to-read design - Works for travel planning, remote work, global meetings & international calls PERFECT FOR: - Remote teams scheduling meetings across time zones - Travelers checking time zones before they land - Families and friends staying connected across countries - Professionals working with international clients - Anyone who needs to know "what time is it in..." β€” instantly Download World Clock - Time Zones today and never lose track of time again, no matter where in the world you (or your plans) are.

About

SunArc

Features
Read full description

SunArc shows the sun’s path and position on a map for your location, date and time. See where shadows will fall, from buildings, trees or custom objects placed manually. Check how shadows change throughout the day and across different seasons. Will your solar panels still get enough sun in winter? Will that tree block the afternoon sun from your kitchen window? Or when will your terrace finally be in the shade? Useful for photographers, hikers, home buyers, balcony owners, campers, gardeners, beach lovers, future solar power heroes and vitamin D hunters. One purpose. No account. No ads. No subscription.

Screenshots

World Clock4 screens
SunArc4 screens

Verdict

The call

The clearest difference is update cadence: SunArc at every 3 weeks against World Clock's every 6 weeks. World Clock's advantage is iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

World Clock ships an update every 6 weeks, SunArc every 3 weeks. The most recent releases landed on October 7, 2026 and October 20, 2026 respectively.

Scorecard2 real differences Β· 4 level
World Clock versus SunArc: the parameters behind the verdict, then further details
ParameterWorld ClockSunArc
PriceFreeFree
Update frequencyEvery 6 weeksEvery 3 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 β€” better16.4
Further details β€” not scored
Size38 MB50 MB
Age rating4+4+
DeveloperBhavin HarsodaPascal von Burg

In-app purchases

None

World Clock

No in-app purchases

None

SunArc

No in-app purchases

Questions

Is World Clock free?
World Clock is free to download, with no in-app purchases.
Is SunArc free?
SunArc is free to download, with no in-app purchases.
Do World Clock or SunArc have ads?
Neither World Clock nor SunArc shows ads.
Which is updated more often, World Clock or SunArc?
World Clock ships an update every 6 weeks, and SunArc every 3 weeks. Most recently, World Clock was updated on October 7, 2026 and SunArc on October 20, 2026.

Other comparisons