Comparison

World Clock... vs Periodic Table 2026

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

Head to head
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/

About

Periodic Table 2026

Features
Read full description

Discover the beauty of chemistry with the most interactive periodic table on the App Store. EXPLORE ALL 118 ELEMENTS Tap any element to reveal its properties — from atomic mass and electron configuration to crystal structure and oxidation states. Beautiful color-coded categories make it easy to understand element families at a glance. TEST YOUR KNOWLEDGE Challenge yourself with 5 quiz types: Name to Symbol, Symbol to Name, Atomic Number to Element, Element to Category, and Property Matching. Track your scores and watch your chemistry knowledge grow. EARN ACHIEVEMENTS & LEVEL UP Unlock 15 unique achievements as you explore and learn. Earn XP for every element viewed and quiz completed. Rise through 6 levels from Atom to Element Master. DAILY CHALLENGES & STREAKS Stay motivated with rotating daily challenges and streak tracking. Build your chemistry habit one element at a time. WHAT'S INCLUDED FREE: - Full interactive periodic table with all 118 elements - Basic element properties (atomic number, symbol, name, mass, category, state) - 3 quizzes per day PRO FEATURES ($4.99/year): - Advanced properties: electron configuration, electronegativity, melting/boiling points, density, crystal structure, oxidation states, atomic radius, ionization energy - Unlimited quizzes — all 5 types - Full achievement system with XP levels - Streak tracking & daily challenges - Premium themes - Personal notes on any element Perfect for students, teachers, chemistry enthusiasts, and anyone curious about the building blocks of our universe. Start your free trial today — 3 days free, then just $4.99/year. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

World Clock...4 screens
Periodic Table 20264 screens

Verdict

The call

The clearest difference is ads: Periodic Table 2026 at none against World Clock...'s shown. On price, in-app purchases, device support and iOS requirement 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. World Clock... sells 2 in-app purchases, starting at $1.99 per month and Periodic Table 2026 sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
World Clock... versus Periodic Table 2026: the parameters behind the verdict, then further details
ParameterWorld Clock...Periodic Table 2026
PriceFreeFree
Update frequencyMonthly—
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size121 MB4 MB
Age rating4+4+
DeveloperOlga IvanovaEdison Espinosa

In-app purchases

2 purchases

World Clock...

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

Periodic Table 2026

Subscriptions2
  • Weekly Premium$2.997 Days
  • Yearly Premium3 Days trial$12.991 Year

Questions

Is World Clock... free?
World Clock... is free to download, with in-app purchases available.
Is Periodic Table 2026 free?
Periodic Table 2026 is free to download, with in-app purchases available.
Do World Clock... or Periodic Table 2026 have ads?
World Clock... shows ads; Periodic Table 2026 does not.

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