Comparison

CoupleLog vs D

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

Head to head
About

CoupleLog

Features
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Count the days that matter - CoupleLog Enter the one date you started dating and CoupleLog takes care of the rest. Day one is the day you met, and every milestone after that is worked out for you. - What you get β€’ D-Day counter How many days you have been together, with both of your names, a photo and your start date. β€’ Automatic anniversaries 100 days through 1,000 days, and one year through ten years. Twenty milestones, generated for you. β€’ Anniversary tab Grouped by year, split into upcoming and past, each with a D-N badge. The next three sit on your home screen. β€’ Reminders A notification at 9 AM on D-7, D-3 and the day itself. Turn reminders on or off in Settings. β€’ Home screen widgets A small widget with your names and day count, and a medium one that adds your start date and the next milestone. On iOS and Android. β€’ Your own dates First kiss, first trip, the day you moved in. Give it a name and a date and it joins the list. β€’ Photo timeline Save a photo with an optional note and a date, then read your story back as a vertical timeline. Entries can be linked to an anniversary. β€’ A soft pink and rose design made for two - Who it is for β€’ Couples who never want to miss a milestone β€’ Anyone who knows the date but hates doing the math β€’ People who want the count on their home screen - Private by design Everything stays on your device. Nothing is sent to a server, and there is no account and no sign-up. CoupleLog is free, supported by banner ads and an occasional full-screen ad when you save a memory.

About

D

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D-Day Keep β€” a beautiful countdown widget for every day that matters. Anniversaries, birthdays, exams, trips β€” keep every important date at your fingertips. # Key features β€’ D-Day countdown β€” register any date, past or future. Days are calculated automatically every day. β€’ Home screen widget β€” see your D-Days at a glance, no need to open the app. β€’ Photo backgrounds β€” place a memory on your D-Day card. β€’ 8 themes β€” Coral, Ocean, Forest, Sunset, Gold, Midnight, Blossom, Ivory. β€’ Milestone alerts β€” D-100, 1-year, the day itself, and more. β€’ Cloud backup (optional) β€” sign in to keep your D-Days across devices. β€’ 20 languages β€” Korean, English, Japanese, Chinese, Spanish and more. β€’ Minimal ads β€” light and unobtrusive. # Perfect for β€’ Couples tracking 100-day & anniversary milestones β€’ Family birthdays and wedding anniversaries β€’ Exam prep β€” college entrance, certification, professional tests β€’ Trips, concerts, military discharge, big events β€’ Diet, quit-smoking, workout β€” track when you started β€’ Keeping memories of someone special, with a photo # Why D-Day Keep? β€’ Start instantly β€” no sign-up required β€’ Sign in is optional β€” Google, Apple, or Kakao for cloud backup β€’ Beautiful cards with photos & themes β€” every day feels like a memory β€’ Home widget β€” your D-Days stay visible every day β€’ Localized for 20 languages β€” naturally, not auto-translated # Privacy-first If you don't sign in, your D-Days never leave your phone. Cloud backup only applies after sign-in, and you can delete your account at any time to permanently erase all data. β€’ Privacy policy: https://codesand.co.kr/app/dkeep/privacy β€’ Terms of service: https://codesand.co.kr/app/dkeep/terms β€’ Support: support@codesand.co.kr

Screenshots

CoupleLog3 screens
D4 screens

Verdict

The call

The clearest difference is update cadence: D at every 3 days against CoupleLog's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

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

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CoupleLog ships an update every 10 days, D every 3 days. The most recent releases landed on October 4, 2026 and October 8, 2026 respectively.

Scorecard1 real difference Β· 5 level
CoupleLog versus D: the parameters behind the verdict, then further details
ParameterCoupleLogD
PriceFreeFree
Update frequencyEvery 10 daysEvery 3 days β€” better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS15.115.0 β€” better
Further details β€” not scored
Size43 MB52 MB
Age rating4+4+
DeveloperSeonggon SimCodeSand Co. Ltd.

In-app purchases

None

CoupleLog

No in-app purchases

None

D

No in-app purchases

Questions

Is CoupleLog free?
CoupleLog is free to download, with no in-app purchases.
Is D free?
D is free to download, with no in-app purchases.
Do CoupleLog or D have ads?
Both CoupleLog and D show ads.
Which is updated more often, CoupleLog or D?
CoupleLog ships an update every 10 days, and D every 3 days. Most recently, CoupleLog was updated on October 4, 2026 and D on October 8, 2026.

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