Comparison

YH Diary vs Sleep_keeper

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

Head to head
About

YH Diary

Features
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A personal library where every day forms a page in your story. Pick a sticker for your mood today and record what happened. A month's worth of journal entries turns into a unique book, taking its place on your library shelf.

About

Sleep_keeper

Features
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Wake up feeling tired, even after a full night's sleep? Maybe it's time to get to know your sleep a little better. SleepKeeper helps you understand your sleep patterns with Jambi, your friendly sleep companion, and build healthier sleep habits through small, achievable daily steps. Even with an irregular work schedule, you can take better care of your sleep and everyday life. ■ Sleep Easy, Leave the Analysis to Jambi Simply tap "Start Sleep" and rest comfortably. SleepKeeper analyzes sounds recorded during your sleep to help you understand your sleep patterns. Explore your total sleep time, sleep efficiency, time to fall asleep, sleep stages, and snoring records. ■ Understand Your Sleep, One Small Step at a Time Make sense of your sleep data with easy-to-understand insights from Jambi. Discover three personalized suggestions based on your sleep records and start with small changes you can make today. Track your sleep trends through daily, weekly, monthly, and yearly reports. ■ Grow Your Own Forest with Better Sleep Habits Nurture your plants by completing healthy sleep habits, including getting bright morning light, creating a relaxing evening light environment, following bedtime routines, and tracking your sleep. Each plant you grow becomes part of your personal forest, reflecting the healthy habits you've built over time. ■ Your Personal Bedtime Routine Unwind with gentle stretching, breathing exercises, meditation, and calming sounds. Choose a bedtime routine that feels right for you and prepare your mind and body for a restful night. ■ Keep Track of Your Sleep Debt Check your estimated sleep debt based on recent sleep records and explore guidance to help you recover from insufficient sleep. Start with one night's data and gradually build a clearer picture of your sleep health. ■ Manage Your Shifts and Shared Days Off Organize your work shifts and personal events in one convenient calendar. Share and view schedules with coworkers and friends through groups, making it easier to find common days off and plan time together. Tonight is the first step toward understanding your sleep. Start building healthier sleep habits with Jambi and discover a better way to rest. ※ Sleep analysis information is provided for general health and wellness purposes only and is not intended to replace professional medical diagnosis or treatment.

Screenshots

YH Diary4 screens
Sleep_keeper4 screens

Verdict

The call

The clearest difference is update cadence: YH Diary at daily against Sleep_keeper's every 2 months. On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

YH Diary ships an update daily, Sleep_keeper every 2 months. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

Scorecard1 real difference · 5 level
YH Diary versus Sleep_keeper: the parameters behind the verdict, then further details
ParameterYH DiarySleep_keeper
PriceFreeFree
Update frequencyDaily — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone
Requires iOS16.616.0 — better
Further details — not scored
Size65 MB69 MB
Age rating4+17+
Developeryunhyung nam슬립포레스트

In-app purchases

None

YH Diary

No in-app purchases

None

Sleep_keeper

No in-app purchases

Questions

Is YH Diary free?
YH Diary is free to download, with no in-app purchases.
Is Sleep_keeper free?
Sleep_keeper is free to download, with no in-app purchases.
Do YH Diary or Sleep_keeper have ads?
Neither YH Diary nor Sleep_keeper shows ads.
Which is updated more often, YH Diary or Sleep_keeper?
YH Diary ships an update daily, and Sleep_keeper every 2 months. Most recently, YH Diary was updated on November 9, 2026 and Sleep_keeper on November 10, 2026.

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