Comparison

Countdown vs World Time Calc

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

Head to head
About

Countdown

Easily track important upcoming events with customizable countdowns. Set reminders, sync with your calendar, and share progress with friends and family. Organize your life and never miss a moment.

Highlights
  • Customizable countdowns
  • Event reminders
  • Calendar event sync
  • Home and lock screen widgets
  • Share countdowns
  • Light and dark mode
Features
Read full description

Welcome to DayPlus. We make counting down days and events easy. Customize the countdown to perfectly suit your needs with backgrounds, colors, and reminders. Keep track of your countdowns on the app, lock screen, and home screen. You can even import and sync calendar events. Highlights: • Quickly create and track countdowns for goals, trips, births, weddings and other important events. • Customizable event balls and cards • Reminders for each countdowns • Sync Calendar items into DayPlus • Share event countdowns with friends and family • Track all countdowns on the timeline • Light and dark mode • Repeat countdowns every day or week • Pin important events • Easy sorting Download DayPlus now! Counting down days and events just got easy. Customize, sync, track, and share countdowns on your app, lock screen, and home screen. Don’t miss any important event - Set reminders and stay organized. Let the countdown begin! Do you have suggestions? Contact us at hlai.manjun@gmail.com Privacy Policy: https://manjun.tech/doc/en/privacy-policy.html Terms of Service: https://manjun.tech/doc/en/user-agreement.html

About

World Time Calc

Visualize day/night cycles and working hours across different cities with an interactive timeline. Receive custom notifications for sunrise and sunset. Manually adjust work hours for precise scheduling.

Highlights
  • Day/night and working hour graphs
  • Automatic time updates
  • Manual work hour adjustment
  • Interactive time cursor
  • Sunrise/sunset alarm notifications
Features
Read full description

・Features of the WorldTimeCalc ・Graph of day/night and working hours in each city. - Day and night time will be updated automatically every day. Working hours can be changed manually for each city. ・By sliding the cursor, the time for each city will change in the list. ・In normal times, the cursor points to the current time in real time, so you can see at a glance whether it is daytime, nighttime, during business hours, or outside in each city. ・You can send alarm notifications for sunrise, sunset, start time, and end time.

Screenshots

Countdown4 screens
World Time Calc3 screens

Verdict

The call

The clearest difference is price: World Time Calc at Free against Countdown's $4.99. Countdown's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, 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

World Time Calc is free to download; Countdown costs $4.99 up front. World Time Calc sells 1 one-off in-app purchase. Countdown asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Countdown against 5.0 for World Time Calc. That said, the two scores are not equally well evidenced: Countdown has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 92% of Countdown's written reviews are positive against 67% of World Time Calc's.

UpkeepUpdate frequency

Countdown ships an update fortnightly, World Time Calc every 6 weeks. The most recent releases landed on October 24, 2026 and October 23, 2026 respectively.

Scorecard7 real differences · 3 level
Countdown versus World Time Calc: the parameters behind the verdict, then further details
ParameterCountdownWorld Time Calc
Price$4.99Free — better
Rating5.0 (7 ratings)5.0 (1 ratings)
Positive reviews92.3% of reviews — better66.7% of reviews
Number of ratings7 — better1
Update frequencyFortnightly — betterEvery 6 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size44 MB10 MB
Age rating+44+
DeveloperManjun TechHajime Suzuki

Customer experience

Countdown

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews26 reviews
Positive92.3%
Neutral3.8%
Negative3.8%

World Time Calc

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

Countdown

No in-app purchases

1 purchases

World Time Calc

One-time1
  • PremiumPlan$7.99

Questions

Is Countdown free?
Countdown costs $4.99, with no in-app purchases.
Is World Time Calc free?
World Time Calc is free to download, with in-app purchases available.
Which has better reviews, Countdown or World Time Calc?
Countdown and World Time Calc are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.
Do Countdown or World Time Calc have ads?
World Time Calc shows ads; Countdown does not.
Which is updated more often, Countdown or World Time Calc?
Countdown ships an update fortnightly, and World Time Calc every 6 weeks. Most recently, Countdown was updated on October 24, 2026 and World Time Calc on October 23, 2026.

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