Comparison

Duck's Dream vs 루미

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

Head to head
About

Duck's Dream

This app uses your daily behavior patterns to suggest personalized self-care missions. It offers CBT-based guidance and quick puzzle games to help manage mood and build sustainable mental wellness through fun, achievable daily actions.

Highlights
  • Personalized self-care missions
  • CBT-based guidance (QuackTalk)
  • Puzzle game for mood interruption (QuackPop)
  • Behavioral pattern tracking (Mind Chart)
  • Duck customization and leveling
  • Global leaderboard
Features
Read full description

Duck’s Dream: Lighthearted Play for a Clearer Mind Everyone has those moments when their mood dips. Therapy can be expensive and hard to keep up with, and most mental health apps feel repetitive or overwhelming. Duck’s Dream is different: it reflects your daily behavior patterns like a mirror and turns them into simple self-care missions—making mental health management fun, easy, and sustainable. [What makes it different] Your behavioral data—like sleep, activity rhythms, and phone use—gently reveals your current state. Based on those signals, the app suggests personalized self-care missions right when you need them. Every mission you complete lets you customize and level up your duck, turning small everyday actions into meaningful emotional progress. [Inside the app] Meet QuackTalk, a short and supportive CBT-based guide that helps reshape unhelpful thoughts and behaviors. When you feel stuck in a negative loop, jump into QuackPop, a quick puzzle game that interrupts spirals and re-energizes you. Your daily check-ins come together in the Mind Chart, where you can see your patterns and progress at a glance. And if you’re competitive, climb the global leaderboard and aim for the top 1%. [Easy to start, simple to keep going] Each day, your AI duck companion asks how you feel and offers one mission tailored to your current mood. Completing it earns you items to customize your duck—and a small win for your mental health. On busy days, it takes just a minute or two. The goal isn’t dramatic change overnight, but small, consistent actions that add up. [Perfect for you if…] You’ve tried counseling but struggled to stay consistent. You’ve downloaded wellness apps but lost motivation quickly. You want something light and playful, yet grounded in CBT principles that actually work. Duck’s Dream is designed to combine fun, practicality, and science—so you don’t have to choose. [Privacy and care] Your mental health matters. All data is protected and fully under your control. Duck’s Dream is a wellness app, not a medical diagnosis or treatment, and it’s built to support daily rhythm and self-care. If you ever feel you’re in crisis, please reach out to local professionals right away. Start small, today. Care for your mind—one mission, one duck at a time. [Premium] - unlimited use of Quack Talk - Everyday item - a steady change of heart - Remove Advertisement You will be charged to your iTunes Apple account when you confirm your purchase or when you end your free period. If you do not terminate the automatic renewal 24 hours before the end of the subscription period, the subscription will be automatically renewed and charged. You can manage subscriptions and terminate automatic renewals in Settings > App Store > Select Apple ID > View Apple ID > Subscribe. Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://be-symple.notion.site/151afb07c3b880c58f72fa008347de4e?source=copy_link

About

루미

This app helps improve sleep by addressing the root causes of insomnia, focusing on changing habits and thoughts rather than relying on temporary aids. It offers personalized programs based on sleep psychology, daily journaling, and detailed sleep reports to help users understand and fundamentally improve their sleep patterns.

Highlights
  • Sleep psychology-based programs
  • Sleep status surveys
  • Daily sleep journaling
  • Sleep reports with feedback
  • Personalized sleep routines
Features
Read full description

불면증을 개선하기 위해 멜라토닌, ASMR, 수면제 등을 사용해보신 적이 있을 거예요. 그때는 잠시 도움이 되기도 합니다. 하지만 이런 방법들은 말 그대로 ‘보조 수단’일 뿐, 수면의 질을 근본적으로 개선하지는 못합니다. 진짜 중요한 건 ‘더 잘 자려고 애쓰는 것’이 아니라, 내 몸의 습관과 생각을 바꾸는 것입니다. 한번 떠올려보세요. 예전에 잘 자던 시절, 잠들기 위해 특별히 노력했었나요? 아마 아니었을 거예요.
 그냥 누우면, 어느새 자연스럽게 잠이 들었을 겁니다. 이처럼, 잠이란 원래 억지로 만들어내는 것이 아니라, 몸과 마음이 스스로 잠들 수 있는 환경을 만들어주는 것입니다. 루미는 바로 그 지점에 집중합니다. ― 이런 분들께 추천드려요 - 멜라토닌이나 수면제에 의존하지 않고 잠들고 싶은 분 - 잠에 드는게 어려우신 분 - 잠은 자는데 개운하지 않고, 자주 깨는 분 - ‘잘 자야 한다’는 압박 때문에 오히려 잠이 더 어려운 분 - 내 수면 상태를 제대로 이해하고, 근본적으로 수면을 개선하고 바꾸고 싶은 분 ― 루미의 주요 기능 ▶ 수면 심리학 원리 기반 프로그램 수면을 방해하는 생각과 습관을 점검하고,
내 몸에 맞는 수면 루틴을 제안합니다. ▶ 나의 수면 상태를 파악하는 수면 설문 현재 수면 상태와 방해 요인을 체계적으로 확인할 수 있어요. ▶ 매일 작성하는 수면 일지 잠든 시간, 깬 시간, 수면의 질을 기록하며
내 수면 패턴을 눈으로 확인합니다. ▶ 수면 리포트로 한눈에 보는 변화 수면 효율과 흐름을 점수와 그래프로 확인하고,
지금 상태에 맞는 피드백을 받아보세요. ― 잠을 ‘관리’하지 말고, 다시 ‘맡겨보세요’ 루미는 잠을 통제하려 하지 않습니다. 대신, 잠이 자연스럽게 찾아올 수 있도록 몸과 마음을 원래의 상태로 되돌려줍니다. 루미와 함께,
아무 걱정 없이 잠들던 그때로 돌아가요. ― *Morin CM, et al. JAMA. 2009;301(19):2005-2015 **Glass J, et al. BMJ. 2005;331(7526):1169 ***Jacobs GD, et al. Arch Intern Med. 2004;164(17):1888-1896 ― 이용약관(Terms of Use): https://lumisleep.app/terms 개인정보처리방침(Privacy Policy): https://lumisleep.app/privacy

Screenshots

Duck's Dream4 screens
루미4 screens

Verdict

The call

The clearest difference is monetization model: Duck's Dream at free with in-app purchases against 루미's subscription. 루미's advantage is ads (none vs shown). On price, rating, review sentiment and ratings volume 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. Duck's Dream sells 10 in-app purchases, starting at $4.99 per month and 루미 sells 6 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Duck's Dream against 5.0 for 루미. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 94% of Duck's Dream's written reviews are positive against 100% of 루미's.

UpkeepUpdate frequency

Duck's Dream ships an update every 4 days, 루미 weekly. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
Duck's Dream versus 루미: the parameters behind the verdict, then further details
ParameterDuck's Dream루미
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews94.1% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 4 days — betterWeekly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhoneiPhone, iPod — better
Requires iOS16.615.1 — better
Further details — not scored
Size133 MB112 MB
Age rating4+4+
Developerminsoo kimJae Chan Lee

Customer experience

Duck's Dream

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews17 reviews
Positive94.1%
Neutral5.9%
Negative0.0%

루미

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Duck's Dream

Subscriptions1
  • Premium$4.991 Month
One-time9
  • 아이템 4종$0.99
  • 500 Diamonds$1.99
  • 1,000 Diamonds$3.99
Show 6 more
  • 아이템 4종 5세트$3.99
  • 아이템 4종 5세트, 하트 10개$5.99
  • 5,000 Diamonds$6.99
  • Dream Pass$6.99
  • 10,000 Diamonds$11.99
  • 20,000 Diamonds$19.99
6 purchases

루미

Subscriptions2
  • 투나잇 월간 구독$4.991 Month
  • 투나잇 연간 구독$49.991 Year
One-time4
  • 스타터$29.99
  • 딥케어$69.99
  • 루미 인텐시브$89.99
Show 1 more
  • 루미 코어$149.99

Questions

Is Duck's Dream free?
Duck's Dream is free to download, with in-app purchases available.
Is 루미 free?
루미 is free to download, with in-app purchases available.
Which has better reviews, Duck's Dream or 루미?
Duck's Dream and 루미 are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Duck's Dream or 루미 have ads?
Duck's Dream shows ads; 루미 does not.
Which is updated more often, Duck's Dream or 루미?
Duck's Dream ships an update every 4 days, and 루미 weekly. Most recently, Duck's Dream was updated on October 23, 2026 and 루미 on October 9, 2026.

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