Comparison

D vs DayTag

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

Head to head
About

D

Features
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How many days has it been? What weekday is your next milestone? See today as one large number, then turn the page to plan your next special day. • Choose from six kinds of dates: relationship, baby, birthday, wedding, upcoming, or custom. • Choose whether the first day counts as day one. Existing counting settings stay the same until you change them. • See milestones suited to each kind, including 100 days, months, anniversaries, birthdays, and past milestones. • Search all days, filter by kind, pin a date, drag your personal order, and preview the next 30 days. • Repeat Korean lunar birthdays using offline solar-date conversion for 1900–2050, with a choice of leap-month rules. • Use small and medium home screen widgets and lock screen widgets. Choose a different day for each widget (iOS 17 or later). • Set reminders in your local time. Choose date and milestone reminders and their hour. The nearest 60 reminders are refilled when you open the app. • Celebrate milestones and share square or portrait image cards. Hide the name before sharing; notes are always excluded. • Calculate the days between dates or a date N days away, then add the result directly. • Export and restore JSON backups, use dark mode, and follow your system language in Korean or English. No ads, tracking, or account. Your dates stay on your device. Fonts and Korean lunar data are bundled with the app.

About

DayTag

Features
Read full description

DayTag is a local-first countdown and anniversary tracker. Pin the days you care about to your Home Screen. Add a date in seconds ā€šĆ„Ć® a birthday, an anniversary, a trip, an exam, a habit start ā€šĆ„Ć® and see days left or days since every time you unlock your phone. WHAT YOU GET Ā¬āˆ‘ Counts both ways Future dates count down. Past dates count up. An exam is "42 days left"; a habit is "128 days since". Expired events flip automatically and never show a negative number. Ā¬āˆ‘ Home Screen widgets Small and medium widgets refresh after midnight. Tap a widget to open the event. This is the main way to use DayTag ā€šĆ„Ć® you do not need to open the app every day. Ā¬āˆ‘ Local-first privacy Everything stays on your device. No account, no login, no cloud upload, no ads, no analytics SDK. Works in airplane mode. Ā¬āˆ‘ Local reminders Remind yourself on the day, or 1, 3, or 7 days before. Reminders are scheduled on-device and restore after reboot. Ā¬āˆ‘ One-tap share cards Share through the system share sheet. No third-party social SDK. Ā¬āˆ‘ Six categories and light / dark themes Birthday, holiday, anniversary, work, study, other. WHO IT'S FOR Ā¬āˆ‘ Anyone counting down to a trip, concert, or exam Ā¬āˆ‘ People who forget birthdays and anniversaries Ā¬āˆ‘ Professionals tracking deadlines and document expiry Ā¬āˆ‘ Habit builders who want to see "N days since day one" WHAT WE DON'T DO No journaling, no team calendars, no social feed. DayTag makes the day count the first thing you see. PRIVACY DayTag does not collect personal data. Privacy policy: https://daytag.starai.tech/privacy-policy/?lang=en Support: support@starresearch.cn

Screenshots

D4 screens
DayTag3 screens

Verdict

The call

The clearest difference is in-app purchases: D at none against DayTag's 1. D also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. DayTag sells 1 one-off in-app purchase. D asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

Scorecard2 real differences Ā· 4 level
D versus DayTag: the parameters behind the verdict, then further details
ParameterDDayTag
PriceFreeFree
Update frequencyEvery 3 daysEvery 3 days
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size33 MB29 MB
Age rating4+4+
DeveloperHeungYeol KimNanjing StarResearch Intelligent Technology Co., Ltd

In-app purchases

None

D

No in-app purchases

1 purchases

DayTag

One-time1
  • DayTag Unlock$1.99

Questions

Is D free?
D is free to download, with no in-app purchases.
Is DayTag free?
DayTag is free to download, with in-app purchases available.
Do D or DayTag have ads?
Neither D nor DayTag shows ads.
Which is updated more often, D or DayTag?
D ships an update every 3 days, and DayTag every 3 days. Most recently, D was updated on October 12, 2026 and DayTag on October 3, 2026.

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