Comparison

duck vs 평온한 마음

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

Head to head
About

duck

This app allows users to create and share a digital diary with friends and family. Decorate entries with stickers, build memories through comments, and stay updated with notifications. Enjoy a personalized experience with customizable themes.

Highlights
  • Decorate diary entries
  • Share daily life with friends
  • Use stickers for colorful records
  • Build memories with comments
  • Receive diary and comment notifications
  • Dark and Light themes
Features
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duck-z is a diary app for sharing everyday life with someone you care about. Write back and forth with friends or your partner, and build memories that are all your own. • Decorate a diary that's all yours • Take turns sharing daily life with friends or your partner • Brighten your entries with stickers • Memories that grow with every comment • Get notified the moment someone special writes • Your story, every day — even when you're apart • Dark and light themes

About

평온한 마음

Find inner peace by using this application to strike a wooden fish. Focus on the resonant sound to clear your mind and manage your thoughts. It's a simple tool designed for mindfulness and stress relief.

Highlights
  • Strike a wooden fish
  • Focus on sound
  • Clear your mind
  • Manage thoughts
  • Achieve peace
Features
Read full description

‘평온한 마음’과 함께 잠시 호흡과 소리에 집중해 보세요. 목탁과 싱잉볼 중 마음에 드는 소리를 골라 직접 울리며 복잡한 생각을 내려놓을 수 있습니다. 차분한 울림에 귀 기울이고, 나만의 속도로 명상을 이어가 보세요. • 목탁과 싱잉볼 두 가지 소리 • 화면을 터치해 자연스럽게 울리기 • 울린 횟수 기록 • 간결하고 편안한 화면 일상 속 짧은 휴식이 필요할 때 ‘평온한 마음’으로 마음을 가다듬어 보세요.

Screenshots

duck4 screens
평온한 마음3 screens

Verdict

The call

duck and 평온한 마음 are too close to call on the numbers: across 8 compared parameters — price, review sentiment, update cadence and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

duck ships an update every 6 weeks, 평온한 마음 monthly. The most recent releases landed on October 30, 2026 and October 17, 2026 respectively.

ScorecardNo meaningful differences
duck versus 평온한 마음: the parameters behind the verdict, then further details
Parameterduck평온한 마음
PriceFreeFree
Rating4.8 (12 ratings) — better—
Positive reviews98.3% of reviews100.0% of reviews — better
Number of ratings12 — better—
Update frequencyEvery 6 weeksMonthly — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size54 MB18 MB
Age rating4+4+
DeveloperSEUNGHWAN LEEjihyeon kang

Customer experience

duck

All ratings12 ratings
Positive91.7%
Neutral8.3%
Negative0.0%
Written reviews58 reviews
Positive98.3%
Neutral1.7%
Negative0.0%

평온한 마음

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

In-app purchases

None

duck

No in-app purchases

None

평온한 마음

No in-app purchases

Questions

Is duck free?
duck is free to download, with no in-app purchases.
Is 평온한 마음 free?
평온한 마음 is free to download, with no in-app purchases.
Do duck or 평온한 마음 have ads?
Both duck and 평온한 마음 show ads.
Which is updated more often, duck or 평온한 마음?
duck ships an update every 6 weeks, and 평온한 마음 monthly. Most recently, duck was updated on October 30, 2026 and 평온한 마음 on October 17, 2026.

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