Comparison

Birthdays Countdown vs DayMark

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

Head to head
About

Birthdays Countdown

This app helps you keep track of upcoming birthdays with timely notifications. Customize reminder settings and choose whether to display years and ages. An optional add-on can remove ads and increase widget capacity.

Highlights
  • Birthday countdowns
  • Customizable notifications
  • Year and age display options
  • Widget customization
  • Ad removal option
Features
Read full description

This app counts down until birthdays ! Once set, it will be notify on that day every year. There are notify settings such as the day, the previous day, two days before etc, so it should help remembering. ※ Notification will be notified when iPhone/iPad 's power is on., please do not overconfidence. There are settings that do not display year and age. [Additional feature by add-on] - Increase widget cells You can customize the number of display in the widget. - Remove Ads Do not show ads. Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DayMark

Features
Read full description

Count down to the days that matter, and count up from the ones you want to remember, right on your Home Screen and Lock Screen widgets. - "12 days" until the day, "Day 913" since it began. Birthdays and anniversaries can repeat every year, counting down to the next one - Pick a buddy for each mark from 10 characters. Their expression changes as the day gets closer, and they say something new every day - 4 styles (Buddy, Stamps, Ring, Photo) and 8 colors - Use your own photo as the background, from a wedding to a child's birthday - Works on Lock Screen widgets too Your marks and photos stay on your device. No account needed. [Unlimited Plan] Your first 5 marks are free. From the 6th mark on, the Unlimited Plan (monthly, auto-renewing) lets you add as many as you like. - Length: renews automatically every month - Your subscription renews at the same price unless you cancel at least 24 hours before the end of the current period - You can cancel anytime under Subscriptions in your App Store account settings - If you cancel, the marks you made and your widgets keep working Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://watrix.co.jp/privacy/daymark

Screenshots

Birthdays Countdown4 screens
DayMark4 screens

Verdict

The call

The clearest difference is ads: DayMark at none against Birthdays Countdown's shown. DayMark also leads on update cadence (daily vs every 3 months). Birthdays Countdown's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and in-app purchases 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. Birthdays Countdown sells 4 in-app purchases, starting at $1.99 per month and DayMark sells 1 in-app purchase, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Birthdays Countdown ships an update every 3 months, DayMark daily. The most recent releases landed on November 6, 2026 and October 29, 2026 respectively.

Scorecard4 real differences · 6 level
Birthdays Countdown versus DayMark: the parameters behind the verdict, then further details
ParameterBirthdays CountdownDayMark
PriceFreeFree
Rating4.7 (46 ratings) — better—
Positive reviews68.5% of reviews—
Number of ratings46 — better—
Update frequencyEvery 3 monthsDaily — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.0
Further details — not scored
Size64 MB19 MB
Age rating4+4+
Developertadashi atojiwataru takahashi

In-app purchases

4 purchases

Birthdays Countdown

Subscriptions2
  • Pro version (monthly)$1.991 Month
  • Pro version(Year)$19.991 Year
One-time2
  • Increase widget cells$1.99
  • Remove Ads$4.99
1 purchases

DayMark

Subscriptions1
  • 無制限プラン$0.491 Month

Questions

Is Birthdays Countdown free?
Birthdays Countdown is free to download, with in-app purchases available.
Is DayMark free?
DayMark is free to download, with in-app purchases available.
Do Birthdays Countdown or DayMark have ads?
Birthdays Countdown shows ads; DayMark does not.
Which is updated more often, Birthdays Countdown or DayMark?
Birthdays Countdown ships an update every 3 months, and DayMark daily. Most recently, Birthdays Countdown was updated on November 6, 2026 and DayMark on October 29, 2026.

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