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.
HARMONY
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"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.
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.
- 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
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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
Verdict
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
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.
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.
| Parameter | HARMONY | Baby Sleep Tracker by Lulla |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (45 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 45 — better |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 88 MB | 44 MB |
| Age rating | 4+ | 17+ |
| Developer | Qingdao Richmat Intelligence Technology Inc. | BUBBLE DOTS, S.L. |
In-app purchases
HARMONY
No in-app purchases
Baby Sleep Tracker by Lulla
- Lulla Premium Monthly2 variants$9.991 Month
- Lulla 3 Months Subscription$12.993 Months
- Lulla Premium Yearly promo$14.991 Year
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- 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?
Is Baby Sleep Tracker by Lulla free?
Do HARMONY or Baby Sleep Tracker by Lulla have ads?
Which is updated more often, HARMONY or Baby Sleep Tracker by Lulla?
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