Comparison

D vs Memo Paper

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

Head to head
About

D

Organize all your important dates, from exams and anniversaries to birthdays and deadlines. Track upcoming events with customizable countdowns and view them on your home screen or calendar. Stay motivated with progress tracking and enjoy a private, offline experience.

Highlights
  • Unlimited D-day creation
  • Customizable categories
  • Yearly repeating event support
  • Home screen widgets
  • Calendar view
  • Statistics and progress rings
  • Offline and private usage
Features
Read full description

Never miss a day that matters. D-day Counter keeps every countdown in your life โ€” exams, anniversaries, birthdays, deadlines โ€” organized in one clean app. โ–  Made for you ifโ€ฆ โ€ข You're a student counting down to a final exam, certification test, or interview โ€ข You want to celebrate your 100th or 1000th day together as a couple โ€ข You never want to forget a family member's or friend's birthday โ€” even one kept on the lunar calendar โ€ข You're tracking a project deadline, trip departure, or any big day ahead โ–  Key features 1. Unlimited D-days Create as many countdowns as you want โ€” no limits. Pick an emoji and add a memo to make each one yours. Count down to upcoming days (D-35) or count up from past events (D+82). 2. Reminders Get notified on the day, or 1, 2, 3, 7 or 30 days before โ€” at the time you choose. 3. Home screen widgets Check your D-days right from your home screen. Pick which D-day each widget shows; with a start date it shows a progress bar too. 4. Yearly repeating events Birthdays and anniversaries roll over automatically every year. Set it once and it always shows the next occurrence. 5. Lunar calendar dates Enter a date on the Korean lunar calendar and it repeats on that lunar date every year, with the solar date worked out for you. Leap months included. 6. Statistics Year progress, what's coming up, your next 100th or 1000th day, goals in progress and a by-month chart โ€” all on one screen. 7. Calendar view See all your D-days laid out on a monthly calendar. Instantly know what's coming up this month. 8. Categories Exam, Anniversary, Birthday, Military and Other โ€” rename them, change their icon and color, or create your own. 9. Progress ring Set a start date and watch the progress ring fill up as you approach your goal. 10. Backup & restore Export your D-days to a file and bring them back on a new phone. โ–  Light and private โ€ข No sign-up โ€” start using it the moment you install โ€ข All data stays on your device (nothing is sent to a server) โ€ข Works fully offline โ€ข Dark and light themes, English & Korean supported From exam countdowns to couple anniversaries and birthday reminders โ€” start counting the days that matter with D-day Counter.

About

Memo Paper

A minimalist note-taking app that functions like a single sheet of paper, allowing quick entries and seamless continuation of to-do lists. It focuses on organizing completed tasks and carrying over unfinished ones to the next note, simplifying task management without complex folders or accounts.

Highlights
  • Quick checklist creation
  • Sort completed items
  • Pin recurring content for auto-input
  • Carry over unfinished items to next note
  • Alarm reminders for important tasks
  • Home screen widget for current notes
Read full description

Memo Paper๋Š” ํ•œ ์žฅ์˜ ์ข…์ด ๋ฉ”๋ชจ์ง€์ฒ˜๋Ÿผ ๋น ๋ฅด๊ฒŒ ์“ฐ๊ณ , ์ฒดํฌ๋ฆฌ์ŠคํŠธ๋กœ ํ•  ์ผ์„ ์ด์–ด๊ฐˆ ์ˆ˜ ์žˆ๋Š” ๋ฏธ๋‹ˆ๋ฉ€ ์ปจ์…‰์˜ ๋ฉ”๋ชจ ์•ฑ์ž…๋‹ˆ๋‹ค. ๋ณต์žกํ•œ ํด๋”, ๊ณ„์ •, ๋ถ„๋ฅ˜ ์—†์ด ์•ฑ์„ ์—ด๋ฉด ๋ฐ”๋กœ ์ ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์˜ค๋Š˜ ํ•  ์ผ, ๋– ์˜ค๋ฅธ ์ƒ๊ฐ, ๋ฐ˜๋ณต๋˜๋Š” ์ฒดํฌ๋ฆฌ์ŠคํŠธ๋ฅผ ๊ฐ€๋ณ๊ฒŒ ๊ธฐ๋กํ•˜๊ณ , ํ•„์š”ํ•œ ๋‚ด์šฉ๋งŒ ๊ณ„์† ์ด์–ด๊ฐ€์„ธ์š”. Memo Paper์˜ ํ•ต์‹ฌ์€ โ€œ๋๋‚œ ์ผ์€ ์ •๋ฆฌํ•˜๊ณ , ๋‚จ์€ ์ผ์€ ์ด์–ด๊ฐ€๋Š” ๊ฒƒโ€์ž…๋‹ˆ๋‹ค. ์ƒˆ ๋ฉ”๋ชจ๋ฅผ ์‹œ์ž‘ํ•  ๋•Œ ๋ชจ๋“  ๋‚ด์šฉ์„ ์ฒ˜์Œ๋ถ€ํ„ฐ ๋‹ค์‹œ ์“ธ ํ•„์š”๊ฐ€ ์—†์Šต๋‹ˆ๋‹ค. ์™„๋ฃŒ๋œ ์ฒดํฌ ํ•ญ๋ชฉ์€ ์ œ์™ธํ•˜๊ณ , ์•„์ง ๋๋‚˜์ง€ ์•Š์€ ํ•ญ๋ชฉ๋งŒ ๋‹ค์Œ ๋ฉ”๋ชจ๋กœ ๊ฐ€์ ธ์˜ฌ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋งค์ผ ๋ฐ˜๋ณต๋˜๋Š” ์ผ, ์•„์ง ๋๋‚ด์ง€ ๋ชปํ•œ ์ผ, ์˜ค๋Š˜ ์ด์–ด์„œ ํ•ด์•ผ ํ•  ์ผ์„ ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ๊ด€๋ฆฌํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ฃผ์š” ๊ธฐ๋Šฅ * ํŽธํ•˜๊ฒŒ ์ฒดํฌ๋ฆฌ์ŠคํŠธ ์ž‘์„ฑ * ์™„๋ฃŒ ํ•ญ๋ชฉ ์•„๋ž˜ ์ •๋ ฌ * ๋งค๋ฒˆ ๋ฐ˜๋ณต๋˜๋Š” ๋‚ด์šฉ์€ ๊ณ ์ •ํ•€์œผ๋กœ ํŽธํ•˜๊ฒŒ ์ž๋™ ์ž…๋ ฅ. * ๋ฏธ์™„๋ฃŒ ํ•ญ๋ชฉ๋งŒ ๋‹ค์Œ ๋ฉ”๋ชจ๋กœ ์ด์–ด์“ฐ๊ธฐ * ์•Œ๋žŒ ๊ธฐ๋Šฅ์œผ๋กœ ์ค‘์š”ํ•œ ๋‚ด์šฉ์€ ํ•œ๋ฒˆ ๋” ๋ฆฌ๋งˆ์ธ๋“œ * ์ง€๋‚œ ๋ฉ”๋ชจ ๋‹ค์‹œ ๋ณด๊ธฐ * ํ™ˆ ํ™”๋ฉด ์œ„์ ฏ์œผ๋กœ ํ˜„์žฌ ๋ฉ”๋ชจ ํ™•์ธ * ์•ฑ๊ณผ ์œ„์ ฏ์˜ ๋ฉ”๋ชจ ๋ฐ์ดํ„ฐ ๊ณต์œ  ์ด๋Ÿฐ ๋ถ„๋“ค์—๊ฒŒ ์ข‹์Šต๋‹ˆ๋‹ค * ๋ณต์žกํ•œ ๋ฉ”๋ชจ ์•ฑ๋ณด๋‹ค ๋‹จ์ˆœํ•˜๊ณ  ๊น”๋”ํ•œ ๋ฉ”๋ชจ์ง€๊ฐ€ ํ•„์š”ํ•œ ๋ถ„ * ํ•  ์ผ์„ ๋น ๋ฅด๊ฒŒ ์ ๊ณ  ์‰ฝ๊ฒŒ ํ™•์ธํ•˜๊ณ  ์‹ถ์€ ๋ถ„ * ๋๋‚ธ ์ผ๊ณผ ๋‚จ์€ ์ผ์„ ์ž์—ฐ์Šค๋Ÿฝ๊ฒŒ ์ •๋ฆฌํ•˜๊ณ  ์‹ถ์€ ๋ถ„ * ๋นˆ๋ฒˆํ•˜๊ฒŒ ์ผ์–ด๋‚˜๋Š” ์ˆ˜์ •์„ ํŽธํ•˜๊ฒŒ ์ฒดํฌ๋ฆฌ์ŠคํŠธ ํ˜•์‹์œผ๋กœ ๊ฐ€๋ณ๊ฒŒ ์ด์–ด๊ฐ€๊ณ  ์‹ถ์€ ๋ถ„ * ๋ฐฐ๋„ˆ ์•Œ๋ฆผ์„ ํ†ตํ•ด ์ฒดํฌ๋ฆฌ์ŠคํŠธ๋ฅผ ํ•œ๋ฒˆ ๋” ํ™•์ธํ•˜๋„๋ก ํ•˜๊ณ  ์‹ถ์œผ์‹  ๋ถ„ * ํ™ˆ ํ™”๋ฉด์—์„œ ํ˜„์žฌ ๋ฉ”๋ชจ๋ฅผ ๋ฐ”๋กœ ๋ณด๊ณ  ์‹ถ์€ ๋ถ„ Memo Paper๋Š” ๊ธฐ๋ก์„ ๋ณต์žกํ•˜๊ฒŒ ๊ด€๋ฆฌํ•˜๊ธฐ๋ณด๋‹ค, ์ง€๊ธˆ ํ•ด์•ผ ํ•  ์ผ์„ ๋†“์น˜์ง€ ์•Š๋„๋ก ๋•๋Š” ์•ฑ์ž…๋‹ˆ๋‹ค. ์‘์›ํ•˜๊ธฐ๋กœ ๋” ๋„“๊ฒŒ ํ™œ์šฉํ•˜์„ธ์š” ํ•œ ๋ฒˆ ๊ตฌ์ž…ํ•˜๋ฉด ํ•˜๋‹จ ๊ด‘๊ณ ๊ฐ€ ์ œ๊ฑฐ๋˜๊ณ  ์—ฌ๋Ÿฌ ๋ฉ”๋ชจ์ง€๋ฅผ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ผ์ƒ, ์˜คํ”ˆ, ๋งˆ๊ฐ์ฒ˜๋Ÿผ ์šฉ๋„๋ณ„ ๋ฉ”๋ชจ์ง€๋ฅผ ๋งŒ๋“ค๊ณ , ๊ฐ ๋ฉ”๋ชจ์ง€๋ฅผ ์„œ๋กœ ๋‹ค๋ฅธ ์œ„์ ฏ์ด๋‚˜ ์œ„์ ฏ ์Šคํƒ์œผ๋กœ ๋ฐฐ์น˜ํ•˜์„ธ์š”. ํƒญ ์ˆœ์„œ๋ฅผ ๋ฐ”๊พธ๊ณ  ์ฒดํฌ๋ฆฌ์ŠคํŠธ ํ•ญ๋ชฉ์„ ๋‹ค๋ฅธ ๋ฉ”๋ชจ์ง€๋กœ ์˜ฎ๊ธธ ์ˆ˜๋„ ์žˆ์Šต๋‹ˆ๋‹ค. ๊ธฐ์กด ๊ด‘๊ณ  ์ œ๊ฑฐ ๊ตฌ๋งค ๊ณ ๊ฐ๋„ ์ถ”๊ฐ€ ๊ฒฐ์ œ ์—†์ด ์ด์šฉํ•  ์ˆ˜ ์žˆ์œผ๋ฉฐ, ์ •๊ธฐ ๊ฒฐ์ œ๊ฐ€ ์•„๋‹™๋‹ˆ๋‹ค. ํ•œ ์žฅ์˜ ๋ฉ”๋ชจ์ง€์ฒ˜๋Ÿผ ์“ฐ๊ณ , ๋๋‚œ ์ผ์€ ๋น„์šฐ๊ณ , ๋‚จ์€ ์ผ์€ ๊ณ„์† ์ด์–ด๊ฐ€์„ธ์š”.

Screenshots

D4 screens
Memo Paper4 screens

Verdict

The call

The clearest difference is update cadence: Memo Paper at every 4 days against D's every 2 months. D's advantage is monetization model (ad-supported vs free with in-app purchases) and device support (3 vs 1). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

D ships an update every 2 months, Memo Paper every 4 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard4 real differences ยท 4 level
D versus Memo Paper: the parameters behind the verdict, then further details
ParameterDMemo Paper
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 2 monthsEvery 4 days โ€” better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported โ€” betterFree with in-app purchases
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size28 MB8 MB
Age rating4+4+
DeveloperSiU AhnChan Uk Park

Customer experience

D

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Memo Paper

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

D

No in-app purchases

None

Memo Paper

No in-app purchases

Questions

Is D free?
D is free to download, with no in-app purchases.
Is Memo Paper free?
Memo Paper is free to download, with no in-app purchases.
Do D or Memo Paper have ads?
Both D and Memo Paper show ads.
Which is updated more often, D or Memo Paper?
D ships an update every 2 months, and Memo Paper every 4 days. Most recently, D was updated on October 24, 2026 and Memo Paper on October 25, 2026.

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