Comparison

HARMONY vs Baby Sleep Tracker by Lulla

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

Head to head
About

HARMONY

Features
Read full description

"HARMONY" is a smart bed control application that assists users in controlling various functions of their smart bed via their smartphone or tablet. The application is designed to provide a more intelligent, comfortable, and healthier sleep experience. The "HARMONY" application offers a range of features. Users can use the application to set wake-up alarms, customizing alarm modes and times to wake up feeling refreshed and comfortable in the morning. Users can also use the application to recline the bed with a single tap, facilitating a faster transition into a sleeping state. Additionally, the application provides various sleep assistance functions such as anti-snoring mode, zero-pressure mode, movie-watching mode, and reading mode to cater to different user needs. The "HARMONY" application also includes a memory position feature, allowing users to adjust the bed's angle and firmness during sleep to meet their specific comfort requirements. Users can save different positions based on their preferences and habits, making it easy to adjust the mattress position and firmness when needed. In conclusion, "HARMONY" is a highly practical smart bed control application that helps users manage their sleep better and enhance sleep quality. If you're someone who seeks high-quality sleep, the "HARMONY" application will undoubtedly become an essential sleep tool for you.

About

Baby Sleep Tracker by Lulla

This app creates personalized sleep schedules for infants based on their age and logged sleep patterns. It offers predictive insights for naps and bedtime, gentle reminders, and integrated white noise. The interface is designed for ease of use by sleep-deprived parents.

Highlights
  • Personalized sleep plan generation
  • Predictive nap and bedtime recommendations
  • Dynamic wake window adjustment
  • Sleep pattern learning
  • Nap and night sleep tracking
  • Gentle reminders
  • Built-in white noise
Read full description

Predictable days. Calmer nights Lulla builds your baby's personalized sleep plan automatically — based on age, real wake windows, and the patterns we learn from your logs. "A lifesaver for nap times. The predictive recommendations are extremely useful and accurate." — Catalina, Mom of Mía WHAT LULLA DOES • Predicts your baby's next ideal nap and bedtime • Adapts wake windows dynamically to your baby's age • Learns from your baby's patterns in just 7 days • Tracks naps, night sleep, and morning wake-ups • Daily Insights and a Morning Debrief to improve every day • Gentle reminders so you never miss a window again • Built-in white noise to help your baby drift off • Live Activities — see nap progress on Lock Screen and Dynamic Island • Calm interface designed for sleep-deprived parents HOW IT WORKS 1. Tell us your baby's age and a few preferences 2. Log naps and night sleep with one tap 3. Lulla predicts the next nap and adjusts as your baby grows NO RIGID METHODS. NO CRY-IT-OUT. Lulla is a flexible, science-backed structure that fits your family — not a sleep training program. Built on age-based templates from pediatric sleep research, then personalized to your real baby with on-device learning. PREMIUM Lulla Premium unlocks unlimited predictions, full insights, Live Activities, and white noise. Free trial for new users. Cancel anytime in Settings. PRIVACY FIRST Your data stays yours. We never sell it. Encrypted sync via Apple ID. A NOTE FROM THE LULLA TEAM Lulla is not medical advice. Always follow your pediatrician's guidance for your baby's health and sleep. We built Lulla to take the guesswork out of nap times — so the time you spend with your baby can be a little calmer, every day. Questions? contact@lulla.io Terms: lulla.io/terms Privacy: lulla.io/privacy

Screenshots

HARMONY4 screens
Baby Sleep Tracker by Lulla4 screens

Verdict

The call

The clearest difference is in-app purchases: HARMONY at none against Baby Sleep Tracker by Lulla's 10. HARMONY also leads on iOS requirement (12.0 vs 17.0). Baby Sleep Tracker by Lulla's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads 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. Baby Sleep Tracker by Lulla sells 9 in-app purchases, starting at $9.99 per month. HARMONY asks for nothing beyond the download.

UpkeepUpdate frequency

HARMONY ships an update every 2 weeks, Baby Sleep Tracker by Lulla every 5 days. The most recent releases landed on November 8, 2026 and November 11, 2026 respectively.

Scorecard3 real differences · 7 level
HARMONY versus Baby Sleep Tracker by Lulla: the parameters behind the verdict, then further details
ParameterHARMONYBaby Sleep Tracker by Lulla
PriceFreeFree
Rating—4.6 (45 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—45 — better
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size88 MB44 MB
Age rating4+17+
DeveloperQingdao Richmat Intelligence Technology Inc.BUBBLE DOTS, S.L.

In-app purchases

None

HARMONY

No in-app purchases

9 purchases

Baby Sleep Tracker by Lulla

Subscriptions9
  • Lulla Premium Monthly2 variants$9.991 Month
  • Lulla 3 Months Subscription$12.993 Months
  • Lulla Premium Yearly promo$14.991 Year
Show 6 more
  • Lulla Premium Yearly promo7 Days trial$14.991 Year
  • Lulla Premium Annual14 Days trial$22.991 Year
  • Lulla Premium Annual7 Days trial$22.991 Year
  • Lulla Premium Annual3 Days trial$22.991 Year
  • Lulla Premium Annual3 Days trial$34.991 Year
  • Lulla Premium Annual7 Days trial$34.991 Year

Questions

Is HARMONY free?
HARMONY is free to download, with no in-app purchases.
Is Baby Sleep Tracker by Lulla free?
Baby Sleep Tracker by Lulla is free to download, with in-app purchases available.
Do HARMONY or Baby Sleep Tracker by Lulla have ads?
Neither HARMONY nor Baby Sleep Tracker by Lulla shows ads.
Which is updated more often, HARMONY or Baby Sleep Tracker by Lulla?
HARMONY ships an update every 2 weeks, and Baby Sleep Tracker by Lulla every 5 days. Most recently, HARMONY was updated on November 8, 2026 and Baby Sleep Tracker by Lulla on November 11, 2026.

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