World Clock... vs LanguageKnow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
World Clock...
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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/
LanguageKnow
Learn or teach any language, from endangered dialects to global languages, with AI tutors and native speakers. Features personalized lessons, speech practice, and tools for educators to share and preserve linguistic heritage.
- AI conversation practice
- Personalized lessons & quizzes
- Speech and pronunciation practice
- Verified dictionary
- Tools for language teachers
- Preservation of endangered languages
- Community language groups
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Teach your language or learn a new one, with native speakers and an AI tutor, free. From Yoruba, Igbo, Hausa, and Swahili to Spanish, French, Mandarin, Arabic, and Hindi, LanguageKnow is a language teaching, learning, and preservation platform on a mission to keep every language alive and within reach of everyone, on every continent. EVERY LANGUAGE, EVERY CONTINENT Teach or learn the language that matters to you, wherever it comes from: - Africa: Yoruba, Igbo, Hausa, Swahili, Amharic, Zulu, Twi, and West African Pidgin - Europe: Spanish, French, German, Italian, Portuguese, and Russian - Asia: Mandarin, Hindi, Arabic, Japanese, Korean, Bengali, Tagalog, and Vietnamese - The Americas: English, Portuguese, Haitian Creole, and Indigenous languages - Oceania and beyond: Maori, Samoan, and heritage languages worldwide If you can name it, you can learn it. If you speak it, you can teach it. FOR LEARNERS - AI conversation practice with instant feedback that adapts to your level - Personalized lessons and automatically generated quizzes - Flashcards and vocabulary review that help you remember - Speech practice to improve pronunciation - A verified dictionary across hundreds of languages - Challenges and leaderboards to stay motivated FOR TEACHERS AND NATIVE SPEAKERS - Share and preserve your language for learners around the world - AI teaching assistant to create and manage lessons - Upload lessons, vocabulary, and exercises - Grade essays with structured feedback - Peer review and a teacher dashboard - Earn verified teacher certificates and recognition COMMUNITY AND PRESERVATION - Browse and learn endangered and minority languages - Create language groups that connect native speakers and learners - Earn points and rewards for learning milestones - A safe, moderated platform for all ages WHY LANGUAGEKNOW We preserve endangered and heritage languages by giving native speakers a place to teach, share, and document their language for future generations. Whether you are reconnecting with your roots, preparing to travel, teaching the language you grew up with, or learning something entirely new, every lesson helps keep a language alive. Teach or learn on LanguageKnow and start today.
Screenshots
Verdict
The clearest difference is in-app purchases: LanguageKnow at none against World Clock...'s 2. LanguageKnow also leads on update cadence (every 2 weeks vs monthly). On price, ads, 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
Both are free to download. World Clock... sells 2 in-app purchases, starting at $1.99 per month. LanguageKnow asks for nothing beyond the download.
World Clock... ships an update monthly, LanguageKnow every 2 weeks. The most recent releases landed on October 3, 2026 and September 23, 2026 respectively.
| Parameter | World Clock... | LanguageKnow |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 121 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Olga Ivanova | Koms Services LLC |
In-app purchases
World Clock...
- timezones_by_oliva_subscription$1.991 Month
- timezones_by_oliva_donation$1.99
LanguageKnow
No in-app purchases









