Question 1

How do I start tracking sleep?

Accepted Answer

Open the app and tap the Start Sleep button on the Home screen. Tap Stop Sleep when your baby wakes up. That's it — one tap to start, one tap to stop. You can also start/stop directly from your Apple Watch or Lock Screen.

Question 2

How do I set up the Apple Watch app?

Accepted Answer

Open the Watch app on your iPhone, scroll to VINULU, and tap Install. The watch app installs automatically. You can start/stop sleep tracking and log night wakings directly from your wrist.

Question 3

How do sleep window predictions work?

Accepted Answer

After 7–14 days of tracking, VINULU analyzes your baby's sleep history, age, and development stage to predict the optimal next sleep window. The confidence improves the more data you track. The algorithm accounts for sleep regressions and has a recovery mode for rough nights.

Question 4

How do I invite my partner or caregiver?

Accepted Answer

Go to Settings → Baby Profile → Invite Caregiver. Share the generated link or QR code. The caregiver needs to create a VINULU account to join. Once connected, both see the same real-time sleep status and history.

Question 5

Does VINULU work without internet?

Accepted Answer

Yes. All data is stored locally on your device first (offline-first architecture). When your device connects to the internet, data syncs automatically to the cloud and to any other connected devices.

Question 6

Is VINULU free?

Accepted Answer

Yes. Core sleep tracking is free forever — one baby profile, nap and night logging, home screen widget, and Apple Watch app. PRO ($44.99/year) adds sleep window predictions, advanced statistics, multiple baby profiles, and caregiver sharing. PRO includes a 7-day free trial — no payment today.

Question 7

How does the 7-day free trial work?

Accepted Answer

When you start a PRO trial, you get full access to all PRO features for 7 days. No payment is charged until the trial ends. You can cancel anytime in iPhone Settings → [Your Name] → Subscriptions → VINULU.

Question 8

How do I cancel my subscription?

Accepted Answer

Go to iPhone Settings → [Your Name] → Subscriptions → VINULU → Cancel Subscription. You'll keep PRO access until the end of the current billing period. You can also restore a previous purchase from Settings in the app.

Question 9

How do I delete my account and data?

Accepted Answer

Go to Settings → Account → Delete Account in the app. This permanently deletes your account and all associated data from our servers. This action cannot be undone.

Question 10

My data isn't syncing between devices. What do I do?

Accepted Answer

Make sure both devices are connected to the internet and signed in with the same VINULU account. Pull down on the Sleep tab to manually refresh. If the issue persists, sign out and sign back in on both devices.

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