Comparison

World Clock Pro vs Birds@SG

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

Head to head
About

World Clock Pro

Easily track and convert time across multiple global time zones. Schedule events, share accurate times instantly, and access a vast database of cities and time zones. Ideal for international communication and planning.

Highlights
  • Universal clock access
  • Effortless time conversion
  • Schedule calendar events
  • Instant time sharing
  • Large city and timezone database
  • Automatic timezone updates
Features
Read full description

TIMEZONE CALCULATOR – YOUR ULTIMATE WORLD TIME COMPANION Master global time with a tool that is clear, concise, and built for busy international lives. Whether you’re scheduling business meetings or connecting with friends overseas, World Clock Pro keeps you in sync—simply and directly. ESSENTIAL FEATURES UNIVERSAL CLOCK ACCESS: View accurate times in cities around the world—New York, London, Tokyo, Sydney. No fuss, just the facts. EFFORTLESS TIME CONVERSION: Swipe to convert and compare time zones with precision. Plan your calls and meetings with ease. SCHEDULE WITH CONFIDENCE: Create and integrate calendar events quickly. Organize trips, group activities, and international calls without confusion. INSTANT TIME SHARING: Share exact times via email, SMS, social media, or messengers. Coordination is just a click away. HUGE CITY & TIMEZONE DATABASE: Access over 160,000 cities and popular time zones like GMT, UTC, EST, and PST at your fingertips. WHY THIS APP MATTERS Say goodbye to timezone confusion. This isn’t just another world clock—it’s a powerful tool for global thinkers, frequent travelers, and anyone who values clear, reliable time data. Streamline your schedule and manage your day without delay. EXTEND YOUR EXPERIENCE For a deeper dive into global time management, World Clock Pro is also available on Mac. Just search “World Clock Pro” in the Mac AppStore * * * World Clock Pro offers a premium subscription: Subscribe to get access to unlimited timezones, and timely automatic updates of our timezone database of more than 160,000 locations and timezones. – Length of subscription: 1 month or 1 year – Payment will be charged to iTunes Account at confirmation of purchase – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period – Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal – Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase – Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable – Terms & Conditions: https://timemaster.s3.amazonaws.com/Time-master-terms.pdf – Privacy Policy: https://timemaster.s3.amazonaws.com/Time-master-privacy-policy.pdf

About

Birds@SG

Features
Read full description

Birds@SG is your birding companion for Singapore — helping you discover recent sightings, record your own field notes, and explore local birdlife in one app. Instead of browsing multiple platforms, you can quickly see what birds were reported, where they were observed, and how recently they were seen — all in one streamlined interface designed specifically for Singapore birders. Birds@SG also includes Field Notes, allowing you to record your own birding experiences with text, photos and audio while you are out in the field. Birds@SG brings together curated eBird data and additional community observations into a lightweight, easy-to-use app. ---------- Key Features Recent Sightings View bird reports from the last 14 days across the island. Each entry clearly shows the data source, distance from your location, observation time, and local status grouping. Singapore Tides & Shorebird Planning Check current and upcoming Singapore tide predictions when planning your birding trips. Browse future dates and see suggested daytime windows when lower tide levels may provide better opportunities for shorebird watching at suitable coastal locations. Instant Map Access Tap any sighting to open the exact coordinates in Google Maps for quick navigation. Full eBird Checklist eBird observations include full checklist details, with additional comments and photos when available. Species Detail View Check official local status such as Resident, Migratory, Visitor or Vagrant. Review recent reports and historical breakdowns for each species, browse available photos and community media, and access the official eBird species reference page. Community Observations Admin-curated sightings allow inclusion of interesting reports that may not yet appear in eBird. Field Notes Keep a personal birding journal by recording notes, photos and audio observations. Photos support fullscreen zoom and camera photos are automatically saved to your Photos app for easy sharing. Gallery Explore bird photos in a clean grid layout. Browse species visually, with new photos added regularly from my field trips. Alerts Notable eBird and Community sightings are broadcast to all users. Subscribers receive enhanced alert notifications with additional analytical details, readable directly from the notification. ---------- Support the App Birds@SG is independently developed and maintained. Your support helps cover server costs and continuous improvements. Subscribers receive: • Enhanced alert notifications with extended details If you find the app useful, please consider subscribing to support its continued development. ---------- Subscription Information Payment will be charged to your Apple ID account at confirmation of purchase. Your account will be charged for renewal within 24 hours prior to the end of the current period. Auto-renewal may be turned off at any time in your Apple ID account settings after purchase. No cancellation of the current subscription is allowed during an active subscription period. Subscription price: SGD 2.98 per month SGD 29.98 per year Prices may vary by country. Privacy Policy: http://hosaystudios.com/privacy.html Terms of Use: http://hosaystudios.com/terms.html All feedback and suggestions are welcome. You can reach us via email at support@hosaystudios.com or through the contact feature within the app.

Screenshots

World Clock Pro4 screens
Birds@SG4 screens

Verdict

The call

The clearest difference is ads: World Clock Pro at none against Birds@SG's shown. World Clock Pro also leads on iOS requirement (13.0 vs 15.6). Birds@SG's advantage is update cadence (every 6 days vs every 2 months). On price, in-app purchases 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. World Clock Pro sells 5 in-app purchases, starting at $1.99 per month and Birds@SG sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

World Clock Pro ships an update every 2 months, Birds@SG every 6 days. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 7 level
World Clock Pro versus Birds@SG: the parameters behind the verdict, then further details
ParameterWorld Clock ProBirds@SG
PriceFreeFree
Rating4.8 (1.4K ratings) — better—
Positive reviews76.7% of reviews—
Number of ratings1.4K — better—
Update frequencyEvery 2 monthsEvery 6 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.0 — better15.6
Further details — not scored
Size41 MB58 MB
Age rating4+4+
DeveloperAlex Komarov Inc.Hosay Studios

Bugs and requests

World Clock Pro

Reported bugs

3 issues
  • Widget not working on iOS 14 and newer
  • Issues with local time zone detection and display
  • Inconsistent behavior after app updates

Requested features

4 requests
  • Add date function for future time zone changes
  • Ability to customize and sort displayed time zones
  • Implement an Apple Watch app
  • Improve widget functionality and customization

Birds@SG

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

World Clock Pro

Subscriptions5
  • 1 month$1.991 Month
  • 1 month2 variants$2.991 Month
  • 1 year3 Days trial$9.991 Year
Show 2 more
  • 1 year3 Days trial$11.991 Year
  • 1 year3 Days trial$19.991 Year
2 purchases

Birds@SG

Subscriptions2
  • Birds@SG Pro Monthly$1.991 Month
  • Birds@SG Pro Yearly$19.991 Year

Questions

Is World Clock Pro free?
World Clock Pro is free to download, with in-app purchases available.
Is Birds@SG free?
Birds@SG is free to download, with in-app purchases available.
Do World Clock Pro or Birds@SG have ads?
Birds@SG shows ads; World Clock Pro does not.
Which is updated more often, World Clock Pro or Birds@SG?
World Clock Pro ships an update every 2 months, and Birds@SG every 6 days. Most recently, World Clock Pro was updated on October 22, 2026 and Birds@SG on October 20, 2026.

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