Comparison

Breastfeeding Timer vs Sleep Diary

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

Head to head
About

Breastfeeding Timer

Features
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This app automatically notifies you when it is time for your babys next feeding. You can fully customize how notifications are delivered, and the built-in nursing light and Dark Mode make nighttime feedings easier. The simple, clean interface lets you manage feeding times without stress. Features: - Automatic reminders for the next feeding - Customizable notifications (sound, vibration, etc.) - Nursing light for nighttime use - Dark Mode support - Automatic saving of the previous feeding record This app helps lighten the daily load of childcare and supports a healthy feeding rhythm for your baby.

About

Sleep Diary

Features
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PREMIUM โ€” PURCHASE REQUIRED: All features described below are part of Pro and require a purchase: a weekly or yearly auto-renewing subscription, or a one-time lifetime purchase. A private sleep diary you fill in yourself โ€” no watch, no microphone, no HealthKit. Log last night in under a minute and let the patterns surface on their own. Every auto-tracker guesses. SleepTrack asks. You record what actually happened โ€” when you got into bed, when you got up, how often you woke, how you felt โ€” and it turns those honest entries into sleep debt, efficiency and bedtime consistency you can act on. It is the same manual method clinical sleep diaries have used for decades, wrapped in a calm, dark interface made for bleary morning eyes. WHAT YOU GET โ€ข Last night on one card the moment you open the app โ€” hours slept, quality stars, times you woke โ€ข A one-minute morning log: bedtime, wake time, awakenings, minutes awake, quality, restedness, dream notes โ€ข 12 factor tags โ€” caffeine, alcohol, screens, exercise, stress, reading, meditation and more โ€” correlated against your quality so you see what actually moves it โ€ข Sleep debt counted nightly against your own goal and summed by week, so "I'll catch up on the weekend" becomes a number โ€ข Bedtime consistency plotted night by night โ€” the tighter the cluster, the steadier the routine โ€ข A doctor/clinic report โ€” your whole diary as a clean summary or CSV, ready to hand to a professional PERFECT FOR โ€ข Anyone who wants to track sleep without buying a wearable โ€ข People working through insomnia who have been told to keep a sleep diary โ€ข Side sleepers, stomach sleepers, watch-haters โ€” anyone who will not wear a device to bed โ€ข Shift workers and new parents trying to find a pattern in the chaos WHY NOT JUST USE AN AUTO-TRACKER? Auto-trackers need a device on your wrist or a phone on your mattress, and they still guess. A diary records what you know to be true โ€” and writing it down each morning is itself the habit sleep clinics recommend first. Two taps of honesty beat a night of estimated motion data. PRIVATE BY DEFAULT Every night you log stays in a local database on your iPhone. No account, no cloud, no microphone, no motion sensing โ€” nothing leaves the device unless you export a report yourself. PREMIUM (PURCHASE REQUIRED) SleepTrack Premium unlocks the complete Insights tab (duration and quality trends, factor correlation, weekly sleep debt, bedtime consistency), your full diary history, the doctor/clinic report export, and a custom reminder time. Choose a weekly or yearly auto-renewing subscription, or a one-time lifetime purchase. Log tonight's sleep tomorrow morning โ€” your first patterns appear within a week. SleepTrack is a personal journal, not a medical device. For ongoing sleep problems, talk to your doctor. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia

Screenshots

Breastfeeding Timer3 screens
Sleep Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: Breastfeeding Timer at none against Sleep Diary's 3. Breastfeeding Timer also leads on update cadence (every 4 days vs every 5 months). On price, ads, device support and iOS requirement 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. Sleep Diary sells 3 in-app purchases, starting at $3.99 per 7 days. Breastfeeding Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Breastfeeding Timer ships an update every 4 days, Sleep Diary every 5 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

Scorecard2 real differences ยท 4 level
Breastfeeding Timer versus Sleep Diary: the parameters behind the verdict, then further details
ParameterBreastfeeding TimerSleep Diary
PriceFreeFree
Update frequencyEvery 4 days โ€” betterEvery 5 months
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS16.6 โ€” better17.0
Further details โ€” not scored
Size13 MB5 MB
Age rating4+4+
DeveloperTakahiko InadaLEAN ASIA CO., LTD

In-app purchases

None

Breastfeeding Timer

No in-app purchases

3 purchases

Sleep Diary

Subscriptions2
  • Insomnia Journal Weekly$3.997 Days
  • Bedtime Habit Yearly$19.991 Year
One-time1
  • Wake Pattern Lifetime$39.99

Questions

Is Breastfeeding Timer free?
Breastfeeding Timer is free to download, with no in-app purchases.
Is Sleep Diary free?
Sleep Diary is free to download, with in-app purchases available.
Do Breastfeeding Timer or Sleep Diary have ads?
Neither Breastfeeding Timer nor Sleep Diary shows ads.
Which is updated more often, Breastfeeding Timer or Sleep Diary?
Breastfeeding Timer ships an update every 4 days, and Sleep Diary every 5 months. Most recently, Breastfeeding Timer was updated on October 28, 2026 and Sleep Diary on October 24, 2026.

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