Doudou vs Baby Tracker
Two ad-supported baby logs with free basics, compared on sharing, predictions, reports and price. This page is about Baby Tracker โ Newborn Log, by Nighp Software.
Baby Tracker โ Newborn Log, by Nighp Software, has more than a million installs on Google Play. Doudou is a newer app built around one idea: every caregiver logs on their own phone, without accounts. Other apps are also called Baby Tracker; this page is only about Nighp's.
Both are free to use with ads and cover the essentials: feeds, pumping, diapers, sleep and WHO growth charts. Baby Tracker sells a Remove Ads purchase and a Plus subscription that adds "What's Next", on-device AI cues for the next sleep, feed and diaper; one Plus subscription covers the whole sync group. Doudou's Premium removes the ads and adds nap windows from your baby's age and last logged wake-up.
The real difference is sharing. In Baby Tracker, devices join a sync group on its server with the same email and password; the developer says there is no limit in theory, and that it has tested up to 4 devices in one sync group. In Doudou, one phone creates a family and gets a short code, and up to 10 phones join with it, without anyone typing an email or a password.
Pick Baby Tracker for an Apple Watch app, PDF reports and AI cues. Pick Doudou if you want the grandparents or the nanny to join in seconds, without sharing a login.
Feature comparison
- Price
- DoudouFree with ads; optional Premium, $5.99/month or less on the yearly plan
- Baby Tracker (Nighp)Free with ads; a Remove Ads purchase; Plus subscription
- Account
- DoudouNone: phones join a family with a short code
- Baby Tracker (Nighp)None to log alone; sharing uses one email and password per sync group
- Sharing between caregivers
- DoudouFree, up to 10 phones, each caregiver joins with the code
- Baby Tracker (Nighp)Devices join a sync group with the same email and password; iPhone and Android can mix
- What you log
- DoudouBreast and bottle feeds, pumping, diapers, sleep, meals, supplements, temperature, symptoms, growth
- Baby Tracker (Nighp)Feeds, pumping, diapers, sleep, growth and more
- Predictions
- DoudouNap windows from your baby's age and last logged wake-up (Premium)
- Baby Tracker (Nighp)"What's Next" cues for the next sleep, feed and diaper (Plus, after a 3-day preview)
- AI
- DoudouNone: no AI reads the log
- Baby Tracker (Nighp)"What's Next" runs on-device AI
- Ads
- DoudouIn the free version; none with Premium
- Baby Tracker (Nighp)In the free version; none with the Remove Ads purchase or Plus
- Growth charts
- DoudouWHO growth charts
- Baby Tracker (Nighp)WHO growth standards
- For the pediatrician
- Doudou7- or 30-day report, shared as an image, free
- Baby Tracker (Nighp)PDF reports to email or print
- Platforms
- DoudouiPhone and Android
- Baby Tracker (Nighp)iPhone, iPad, Apple Watch and Android
| Feature | Doudou | Baby Tracker (Nighp) |
|---|---|---|
| Price | Free with ads; optional Premium, $5.99/month or less on the yearly plan | Free with ads; a Remove Ads purchase; Plus subscription |
| Account | None: phones join a family with a short code | None to log alone; sharing uses one email and password per sync group |
| Sharing between caregivers | Free, up to 10 phones, each caregiver joins with the code | Devices join a sync group with the same email and password; iPhone and Android can mix |
| What you log | Breast and bottle feeds, pumping, diapers, sleep, meals, supplements, temperature, symptoms, growth | Feeds, pumping, diapers, sleep, growth and more |
| Predictions | Nap windows from your baby's age and last logged wake-up (Premium) | "What's Next" cues for the next sleep, feed and diaper (Plus, after a 3-day preview) |
| AI | None: no AI reads the log | "What's Next" runs on-device AI |
| Ads | In the free version; none with Premium | In the free version; none with the Remove Ads purchase or Plus |
| Growth charts | WHO growth charts | WHO growth standards |
| For the pediatrician | 7- or 30-day report, shared as an image, free | PDF reports to email or print |
| Platforms | iPhone and Android | iPhone, iPad, Apple Watch and Android |
Who should choose Doudou
Doudou suits families where several people log and nobody wants to manage a shared login. Logging, sharing, growth charts and the pediatrician report are free. Premium ($5.99/month) removes the ads and adds nap windows.
- โGrandparents or a nanny join in seconds with a code, without your email or password
- โUp to 10 phones share the same log
- โYou'd rather no AI read your baby's log
- โYou want the pediatrician report without paying
- โYou want family data kept on a server in the EU
Who should choose Baby Tracker
Baby Tracker is a long-standing, feature-rich log with an Apple Watch app, PDF reports and optional AI cues for what comes next.
- โYou want to log from an Apple Watch
- โYou need PDF reports to email or print
- โYou'd like "What's Next" cues for sleep, feeds and diapers
- โYou want one Plus subscription to cover everyone in your sync group
- โSharing one login across your devices suits you
Frequently asked questions
+Which Baby Tracker is this page about?
Baby Tracker โ Newborn Log, published by Nighp Software on the App Store and Google Play. Other apps use the same name; the facts here only apply to Nighp's app.
+How do caregivers share the log in each app?
In Baby Tracker, one device creates a sync group on the Baby Tracker server and the others join with the same email and password. In Doudou, one phone creates a family and the others type its code, with no email or password, up to 10 phones.
+Are both apps free?
Both are free to download and use, with ads. Baby Tracker sells a Remove Ads purchase and a Plus subscription. Doudou sells an optional Premium, $5.99/month or less on the yearly plan.
+Which one predicts what comes next?
Baby Tracker's "What's Next" uses on-device AI to suggest when the next sleep, feed or diaper may come; after a 3-day preview, it needs Plus. Doudou's Premium suggests nap windows from your baby's age and last logged wake-upged sleep, without AI.
+Can I give my pediatrician a report?
Yes, in both. Baby Tracker exports PDF reports to email or print. Doudou makes a free 7- or 30-day report that you share as an image.
+Does either app work on Apple Watch?
Baby Tracker has an Apple Watch app. Doudou doesn't: it runs on iPhone and Android phones.
One baby log for the whole family
Doudou is free to download. Create a family, share the code, and everyone logs on their own phone.
Sources
Facts about Baby Tracker were checked on October 14, 2026, on its official pages: