EstreluWhite Noise App for Baby That Works Offline
Estrelu includes a white noise app for your baby that works offline. Choose from 7 sounds with a timer, and they keep playing with no internet. The same evening toolkit has a cry timer with step-by-step ideas, colic notes, your bedtime routine and a night-light clock. It runs in your browser, with no app store and no ads.
Bedtime when nothing is working
It's late, your baby is crying, and you've already tried feeding, rocking and a fresh diaper. Your brain goes blank on what to try next. You reach for white noise, and the streaming app wants to play an ad or the Wi-Fi drops. Estrelu keeps the sounds on your phone and keeps a list of what to try, in order.
How the bedtime tools work
- Start white noise. Pick one of 7 noise types and set a timer. Sounds play offline.
- Tap "Crying." A cry timer starts, and Estrelu suggests, one at a time, things you can try.
- Check "Colic and crying." See what has helped your baby on past evenings, from your own notes.
- Follow your routine. "Bedtime ritual" holds your own bedtime steps in order, so anyone putting the baby down does the same thing.
- Set the night-light clock. Your phone by the crib shows the moon, and at a time you set a sun "wakes up." You can add a quiet chime as a simple signal that morning has come.
A typical white noise app vs Estrelu
| Usually | In Estrelu |
|---|---|
| Streams sounds and stops when the signal drops | 7 sounds that play offline |
| Ads or upsells before the sound starts | No ads |
| Only sounds, nothing else | Sounds, cry timer, colic notes, routine and night-light clock |
| A separate app for the bedtime routine | Your routine steps in the same place |
| A separate sleep tracker | Sleep logging and nap forecasts in the same app |
What it's based on and what it doesn't do
The NHS describes colic as when a baby cries a lot but there's no obvious cause, and notes it usually gets better by 3 to 4 months (NHS). Estrelu's cry timer and colic notes help you keep track of what's happening and what has helped. They don't explain why your baby is crying.
If you do use noise machines in your baby's room, experts suggest that you place them more than 200 centimeters from the crib and keep the volume low.
What Estrelu does not do:
- It does not diagnose colic, reflux or any other cause of crying.
- It does not detect crying or monitor your baby. It's not a baby monitor.
- It does not connect to smart speakers or sound machines.
Keep your phone out of the crib. The AAP advises a sleep space free of pillows, blankets, bumpers and toys (AAP). Place the phone at a distance and keep the volume low.
A good bedtime often starts with good timing. The baby sleep tracker predicts the next sleep window, and the wake window calculator shows typical ranges by age. If evenings get harder during teething, mark an off day.
When to call your pediatrician
The NHS advises getting medical help if you're worried about your baby's crying, if soothing doesn't help, if you're struggling to cope, or if your baby isn't gaining weight. Get urgent help if the cry sounds weak, high-pitched or different from your baby's usual cry (NHS). In the US, call your pediatrician, or 911 in an emergency.
Estrelu is not a medical device. It does not diagnose, calculate doses or replace advice from your doctor.
How to start
- Open Estrelu in your phone browser. You don't need the App Store or Google Play.
- Enter your email and the code we send you. There is no password.
- Add Estrelu to your home screen: on Android tap "Install", on iPhone tap "Share" and "Add to Home Screen".
After the first visit the app works offline.
One subscription per family
The first 5 days are free and we don't ask for a card. After that: $4.99 a month, $44.99 a year (instead of $59.88, 25% off), or $79 once for lifetime. Every plan includes every feature, with any number of adults and up to four babies. Paying in USDT is 10% cheaper.
Your data
Your logs are saved on your phone and synced through our server with the whole family. You can export them to JSON or CSV and delete them in settings. Symptom photos stay on your phone only. Estrelu has no ads and no third-party trackers. Privacy policy
Frequently asked questions
- Does the white noise work in airplane mode?
- Yes. The 7 sounds work without internet after you open Estrelu for the first time.
- Can I set the white noise to turn off by itself?
- Yes. Each sound has a timer.
- What does the night-light clock do?
- Your phone by the crib shows the moon, and at a time you choose a sun 'wakes up' on screen. You can add a soft chime.
- Does Estrelu tell me if my baby has colic?
- No. The Colic and crying screen shows what has helped your baby before, based on your notes. Only a doctor can assess your baby's crying.
- Is there an ad before the sounds play?
- No. Estrelu has no ads.
Sources
- NHS: Colic nhs.uk
- AAP HealthyChildren: A Parent's Guide to Safe Sleep healthychildren.org
- CHOP: White Noise: Not the Right Noise chop.edu
Try Estrelu
Five days free, no card asked.
Read next
- Baby Sleep Tracker App with Nap PredictionEstrelu predicts your baby's next nap as a time range with a confidence level and plans today and tomorrow. Works offline in your browser, no app store, no ads.
- Leap and Teething Tracker for Fussy WeeksMark teething, illness, leaps and shots as off days so the sleep forecast stays honest, and see when a fussy week may come. Works offline in your browser.
- Wake window calculatorEnter your baby's birth date and wake-up time to see when the next nap may fit. Plus a wake window chart by age, newborn to 3, and where the numbers come from.