Comparison

Geometry vs World Clock...

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

Head to head
About

Geometry

Features
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The GeometrySolver is not just an app, its a canvas and a book too. This app not only solves the geometric shapes, it also teaches you the formulas related to each geometric shape as well as it draws the geometric shapes when solved. This app is designed by an engineer to the perfection with every details in mind. It calculates side, height, diagonals, apothem, diameter, radius, perimeter, circumference, area, lateral area, surface area, volume. Some shapes have a dedicated interactive tab to play around and draw those shapes of different dimensions. Each geometric shape has its corresponding formulas written beautifully in mathematical way. This is a perfect app for your kids to learn geometry interactively. Draw, solve, share the geometric shapes. Drawn/solved shapes are displayed with their properties (numeric values). The Solve tab of angle is dynamic and interactive. You can touch/drag on the surface to draw an angle or use the slider to draw an angle. It automatically saves your hard work locally on your device so you can come back and pick up from where you left off as your great effort will not be lost. There are so many common geometric shapes to learn from like square, circle, cylinder, cone, cuboid, pyramid, sphere and more There is also a Study page to help you with learning formulae related to many common geometric shapes. This is an app for all student groups. From high school to college to university students. Be creative. Enjoy the app!

About

World Clock...

Features
Read full description

World Clock helps you track global time, compare cities, and plan meetings across regions with ease. Designed for travelers, remote teams, and anyone working across multiple time zones. Stay organized and always know the right time anywhere in the world. World Timezones • Browse all global timezones with live time • Search cities and regions instantly • View offsets, day/night, and full timezone info Favorites • Save frequently used cities • Quickly access important locations • Reorder and manage favorites easily Planner • Compare multiple timezones at once • Select a base time and see global equivalents • Ideal for scheduling across regions Meet • Find the best meeting time across participants • Identify overlapping working hours • Simplify global coordination Map • Visualize timezones geographically • Understand regional time differences • Explore locations interactively Customization • 12/24-hour format options • Show or hide seconds, offsets, country names • Flexible date formats and preferences Offline Access • Works without internet connection • Access saved data anytime • Reliable for travel and remote use Premium Features Upgrade for additional benefits: • Offline mode support • Ad-free experience • Enhanced usability Privacy Focused • No personal data collection • No unnecessary permissions • Your data stays on your device Who This App Is For • Travelers • Remote teams • Digital nomads • Global businesses • Anyone managing time across locations World Clock provides a simple and powerful way to view world time, organize schedules, and coordinate globally. Download World Clock to manage time worldwide with clarity and ease. LICENSED APPLICATION END USER LICENSE AGREEMENT: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Geometry4 screens
World Clock...4 screens

Verdict

The call

The clearest difference is price: World Clock... at Free against Geometry's $1.99. Geometry's advantage is in-app purchases (none vs 2) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

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

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

World Clock... is free to download; Geometry costs $1.99 up front. World Clock... sells 2 in-app purchases, starting at $1.99 per month. Geometry asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Geometry versus World Clock...: the parameters behind the verdict, then further details
ParameterGeometryWorld Clock...
Price$1.99Free — better
Update frequencyMonthlyMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size31 MB121 MB
Age rating4+4+
DeveloperOm Prakash ChapagainOlga Ivanova

In-app purchases

None

Geometry

No in-app purchases

2 purchases

World Clock...

Subscriptions1
  • timezones_by_oliva_subscription$1.991 Month
One-time1
  • timezones_by_oliva_donation$1.99

Questions

Is Geometry free?
Geometry costs $1.99, with no in-app purchases.
Is World Clock... free?
World Clock... is free to download, with in-app purchases available.
Do Geometry or World Clock... have ads?
World Clock... shows ads; Geometry does not.
Which is updated more often, Geometry or World Clock...?
Geometry ships an update monthly, and World Clock... monthly. Most recently, Geometry was updated on November 12, 2026 and World Clock... on November 8, 2026.

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