A calm, private baby tracker — feeds, sleep, diapers, solids, medicine, growth and milestones, with on-device nap guidance. No account, no ads, no tracking.
Need help with Wren? Check the FAQ below or contact us directly.
✉ Contact SupportWren helps you track your baby's day in one calm place: breastfeeding with per-side timers, bottles, pumping, sleep, diapers, solids, medicine (with next-dose reminders), growth and milestones. It shows time since the last feed, live timers, daily summaries, weekly trend charts, and on-device "Rhythm" nap-window guidance based on your baby's age and logged sleep.
No. Wren has no login and no account. Everything works out of the box and your data stays on your device.
No. All of your data stays on your device. Wren has no server of its own and no third-party analytics — the only network connection the app makes is to Apple's App Store for the optional in-app purchase.
No. Wren is a personal logging tool for general wellness. It is not a medical, diagnostic, or sleep-training app and does not provide medical advice. Always consult your pediatrician for health decisions.
Wren is free to use. There is one optional purchase — Wren Plus, a one-time (non-subscription) unlock that adds unlimited history and CSV + PDF export, plus every future update. Tracking every baby, live timers, nap-rhythm predictions, and trends & insights charts are free for everyone.
Only if you enable reminders. Wren can send an optional daily catch-up reminder and medication next-dose reminders. Notifications are entirely optional and off until you turn them on. Wren never uses your camera, microphone, location, or contacts.
Open Wren and go to Settings → Delete all my data. This permanently erases every child and log entry stored on the device. Deleting the app also removes everything.
Open Wren's paywall (Settings → Unlock Wren Plus) and tap "Restore Purchases". Your Wren Plus unlock will be restored to this device and any device signed in to the same Apple ID.
Last updated: July 2026
Wren is private by design. Your data is stored on your device. We operate no server of our own, have no account system, and never sell or share your data. No ads, no tracking, ever.
Wren does not require an account and does not ask for your name, email, or login. The information you enter — your children's profiles and the log entries you record (feeds, sleep, diapers, solids, medicine, growth, milestones, notes) — is stored locally on your device. We do not collect, transmit, or store this information on any server we operate.
All core features — logging, timers, daily summaries, trend charts, and "Rhythm" nap-window guidance — run entirely on your device. Rhythm predictions are computed on-device from your baby's age and your logged sleep; no cloud service or AI provider is involved.
This version of Wren keeps everything on your device. It does not sync to iCloud, does not upload your log anywhere, and has no caregiver-sharing feature. The only network connection the app makes is to Apple's App Store for the optional in-app purchase.
Wren uses Apple's StoreKit for the optional one-time in-app purchase. Payment is handled entirely by Apple through your Apple ID. We never see or store your payment details.
Wren contains no advertising SDKs and no analytics or tracking SDKs. We do not use any advertising identifier, we do not track you across apps or websites, and the app does not present an App Tracking Transparency prompt because it performs no tracking. The app's privacy manifest declares "Data Not Collected" and no tracking.
No other third party receives any data from the app.
We do not collect your name, email, phone number, precise location, contacts, camera or photo data, or any account information, and we run no analytics servers.
Wren is a tool for parents and caregivers to record information about their own children. It is not directed to children as users, and we do not knowingly collect personal data directly from children.
Because your data lives on your device, you are in full control. You can erase everything at any time from Settings → Delete all my data, or by deleting the app. Under GDPR and CCPA you have the right to access, correct, or delete your personal data — with Wren, that data never leaves your own control.
We may update this privacy policy from time to time. Continued use of the app after changes constitutes acceptance of the updated policy.
For privacy questions, contact us at pals_green.1m@icloud.com
Last updated: July 2026
By downloading and using Wren, you agree to these Terms of Use. If you do not agree, please do not use the app.
Wren is a baby-tracking app for logging feeds, sleep, diapers, solids, medicine, growth and milestones, with daily summaries, trend charts, and on-device nap-window guidance. All core features run on your device from the information you enter.
Wren is a personal logging tool for general wellness and informational purposes only. It is not a medical, diagnostic, therapeutic, or sleep-training service, and its summaries and nap-window suggestions are not medical advice. Always consult a qualified pediatrician or healthcare professional for any health decision concerning your child.
Wren is free to use. It offers one optional in-app purchase — Wren Plus (Lifetime) — a one-time, non-consumable unlock. It is not a subscription and does not auto-renew.
You retain ownership of the profiles and entries you create in Wren. Because this data stays on your device, we do not access, claim, or store any rights to it.
You agree to use Wren only for its intended purpose. You may not reverse-engineer, decompile, or attempt to extract the source code of the application.
Wren is provided "as is" without warranty of any kind. We do not guarantee that any summary, chart, or nap-window suggestion is accurate, complete, or suitable for your situation.
Wren and its developers shall not be liable for any indirect, incidental, or consequential damages arising from your use of the app, including any decisions made in reliance on its content.
We may update these terms from time to time. Continued use of the app after changes constitutes acceptance of the new terms.
For questions about these terms, contact us at pals_green.1m@icloud.com