Comparison

클라(KLAR) vs 잘자, 수면에 특화된 음악 및 가이드 앱

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

Head to head
About

클라(KLAR)

Reduce daily stress and improve sleep quality to unlock your potential. Engage in guided meditations, calming sleep content, and regular mental check-ins to manage your well-being.

Highlights
  • Stress relief meditations
  • Sleep improvement content
  • Mental self-check surveys
  • Brain training exercises
  • Relaxing sleep sounds
Read full description

일상에서의 스트레스를 줄이고, 수면의 질을 높여 여러분의 잠재력을 되찾아보세요. 1. 스트레스 완화 명상 우리가 몸의 건강을 위해 헬스장에 가서 운동하듯이, 명상은 마음의 건강을 위해 뇌를 훈련하는 운동입니다. 10분 명상을 통해 복잡한 생각을 잠재우고, 지금 이 순간, 여러분만의 여유를 만들어가는 연습을 해보세요. 2. 꿀잠 수면 콘텐츠 평소 잠들기 어렵거나 깊은 잠을 유지하기 어려우셨나요? 오디오 가이드를 들으며 잠들기 전 몸의 긴장을 풀어보세요. 또 잔잔한 수면 사운드를 들으며 꿀잠 자고 에너지 충전하세요. 3. 스스로 멘탈 체크 일주일 한번 일상생활에서 느꼈던 스트레스와 최근 수면 상태에 대해 간단한 설문을 해보세요. 주기적으로 내 스트레스와 수면 지수를 확인하고 스스로 멘탈을 관리해보세요. KLAR는 카이스트 뇌과학 전문가들이 만든 셀프케어 앱입니다. 우리 모두가 본연의 컨디션을 되찾아 잠재된 능력을 발현할 수 있도록 KLAR는 끊임없이 인간의 뇌와 마음을 연구합니다.

About

잘자, 수면에 특화된 음악 및 가이드 앱

Features
Read full description

Your Professional Sleep Music Service Guiding You to a Healthy Sleep Pattern, Zalza! Zalza is for those who wake up frequently during the night, or those who want to wake up quickly and less tired in the morning. Also anyone concerned about their sleep environment due to jet lag, shift work, or living with pets, can find a solution with Zalza. Our 'Sleep Music Specialists' are dedicated to addressing the sleep challenges people face across various environments. To ensure that you can start and end your day with us, Zalza continues to innovate daily. ■ Easy to Fall Asleep and Stay Asleep, with Quick Awakening! Sleep music designed in phases according to normal brain wave patterns during sleep helps you easily fall asleep and wake up refreshed in the morning. ■ Designed with Advice from Sleep Specialists: 'Normal Sleep Brainwave Timeline' Based on the '90-minute sleep cycle,' we provide brainwave entrainment frequencies that match the 'normal sleep wave' pattern, integrated with our unique sleep music. Experience the effects of Zalza’s exclusive 'Normal Sleep Brainwave Timeline' frequencies and various music genres today! ■ Sleep Content Created Based on Validated Scientific Theories Zalza offers a range of musically diverse, scientifically approached sleep-focused tracks. Music tuned to the 'healing frequency' of 432hz and 'pink noise' guide you to psychological stability and deep sleep. Enjoy comfortable music as you fall asleep, maintain your sleep with frequency and noise, and wake up to pleasant alarm tunes when it's time. ■ Sleep Content Tailored to Various Needs Whether you need a short nap, have a pet with separation anxiety, or want to relax your muscles with PMR content, Zalza has something for everyone. ■ Finding the Right Sleep Duration for You Align your sleep with Zalza’s recommended sleep times or set your own sleep target time. Zalza offers various sleep durations to promote efficient sleep and a refreshing wake-up. ■ Zalza is Ready for People Who: • Toss and turn all night long • Go to sleep tense and wake up frequently • Always feel tired, even after sleeping • Want to find a healthy sleep pattern and improve sleep quality • Need to adjust to night shifts or overcome jet lag • Seek soothing sounds like white noise or ASMR every night • Needs for efficient naps • Have tried everything to fall asleep but remain unsatisfied • Are tired of monotonous sleep music or haven't seen its effects • With Zalza, enhance your sleep experience and wake up feeling revitalized every day. Then Have a Goodnight with ‘Zalza’! Privacy policy: https://www.soundplatform.io/privacypolicy Terms of use : https://www.soundplatform.io/termsandservice

Screenshots

클라(KLAR)4 screens
잘자, 수면에 특화된 음악 및 가이드 앱4 screens

Verdict

The call

The clearest difference is in-app purchases: 클라(KLAR) at none against 잘자, 수면에 특화된 음악 및 가이드 앱's 4. 클라(KLAR) also leads on update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement 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. 잘자, 수면에 특화된 음악 및 가이드 앱 sells 4 in-app purchases, starting at $2.99 per month. 클라(KLAR) asks for nothing beyond the download.

UpkeepUpdate frequency

클라(KLAR) ships an update fortnightly, 잘자, 수면에 특화된 음악 및 가이드 앱 every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
클라(KLAR) versus 잘자, 수면에 특화된 음악 및 가이드 앱: the parameters behind the verdict, then further details
Parameter클라(KLAR)잘자, 수면에 특화된 음악 및 가이드 앱
PriceFreeFree
Rating3.4 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.013.0
Further details — not scored
Size156 MB56 MB
Age rating4+4+
DeveloperYBRAIN Inc.Sound Platform Co., Ltd.

In-app purchases

None

클라(KLAR)

No in-app purchases

4 purchases

잘자, 수면에 특화된 음악 및 가이드 앱

Subscriptions2
  • Monthly Premium Membership1 Month trial$2.991 Month
  • Yearly Premium Membership$22.991 Year
One-time2
  • Zalza 7 days Ticket$0.99
  • Zalza 30 days Ticket$1.99

Questions

Is 클라(KLAR) free?
클라(KLAR) is free to download, with no in-app purchases.
Is 잘자, 수면에 특화된 음악 및 가이드 앱 free?
잘자, 수면에 특화된 음악 및 가이드 앱 is free to download, with in-app purchases available.
Do 클라(KLAR) or 잘자, 수면에 특화된 음악 및 가이드 앱 have ads?
Neither 클라(KLAR) nor 잘자, 수면에 특화된 음악 및 가이드 앱 shows ads.
Which is updated more often, 클라(KLAR) or 잘자, 수면에 특화된 음악 및 가이드 앱?
클라(KLAR) ships an update fortnightly, and 잘자, 수면에 특화된 음악 및 가이드 앱 every 2 months. Most recently, 클라(KLAR) was updated on October 24, 2026 and 잘자, 수면에 특화된 음악 및 가이드 앱 on October 27, 2026.

Other comparisons