Last updated: October 4, 2026
This Privacy Policy explains how Lullo ("Lullo", "we", "us" or "our") collects, uses and protects information when you use the Lullo mobile application and this website (together, the "Service"). Lullo was previously published as Lullaby AI.
Lullo is a baby sleep tracker. It forecasts naps and bedtime, lets you log sleep, feeds and care, plays sleep sounds, and includes a sleep guide and an AI sleep helper called Luna. It offers general information and does not provide medical advice.
We use Mixpanel to understand which parts of Lullo are used: which screens are opened, which kinds of entries are logged, and how long the app is used. These events are linked to your account's internal ID. They never include names, email addresses, photos, the contents of your logs or notes, or your messages to Luna. You can turn this off at any time in Settings, under App preferences, with "Share usage data".
To learn which of our ads lead people to install Lullo, the app includes AppsFlyer and the Meta SDK. They receive information about the install and app opens, basic device and network details (such as IP address, device model and operating system version), and three kinds of events: finishing setup, creating an account (with the sign-in method), and starting a trial or subscription (with the plan, price and currency).
Your device's advertising identifier is shared with them only if you allow tracking when iOS asks. You can change this at any time in iOS Settings, under Privacy & Security, Tracking. Lullo does not show third-party ads, and your baby's profile and logs are never used for advertising.
Lullo does not use your microphone.
We use the information we collect to:
We do not use your baby's information for advertising, and we do not sell personal data. The only advertising-related use is measuring how our own ads perform, described in Section 2.
When you send a message to Luna, the message is sent to our server together with the context needed to answer it: your baby's name, age, feeding type and weight, your role as a caregiver, today's plan and recent logs, and earlier messages in the same conversation. Our server passes this to a third-party AI model provider, currently Google (Gemini API), which generates the reply. Your email address is not included.
Where required by law (for example, under the GDPR), we process personal data on the following bases: performance of our contract with you (to provide the Service), your consent (for example, for the health-related entries you choose to log, which you can withdraw by deleting them, and for sharing your device's advertising identifier, which iOS asks you about), our legitimate interests in operating, securing and improving the Service, and compliance with legal obligations.
We share information only in these circumstances:
We do not sell your personal information.
We keep your data for as long as you have an account, so the forecast and your history keep working. When you delete your account, we delete the personal data associated with it, including the baby profiles you own, their logs and your conversations with Luna, except where we must keep something to comply with the law. A baby profile that you joined as an invited caregiver belongs to its owner and stays with them. Invite codes expire after seven days. Support messages are kept for as long as needed to resolve your request and keep a record of it.
Depending on where you live, you may have the right to access, correct, export or delete your personal data, to object to or restrict certain processing, and to withdraw consent. You can:
We respond to verified requests as required by applicable law. You also have the right to lodge a complaint with your local data-protection authority.
Lullo is intended for parents and caregivers, who must be adults. It is not directed to children, and we do not knowingly create accounts for children. Information about a baby is provided by an adult caregiver and is used only to deliver the Service to that caregiver and the caregivers they invite. If you believe a child has given us personal information directly, please contact us so we can remove it.
We use technical and organisational measures designed to protect your information, including encryption in transit and access rules that limit a baby's data to the members of that baby's profile. No method of transmission or storage is completely secure, but we work to protect your data and to address vulnerabilities promptly.
Our service providers may process and store information in countries other than your own, including the United States. Where we transfer personal data internationally, we take steps to ensure an adequate level of protection consistent with applicable law.
Versions of the app published under the name Lullaby AI included a cry analysis feature. In those versions, a short audio clip was captured only when you started a recording, and it was processed to estimate a likely cause of the cry. Cry audio was never sold or used for advertising. Lullo no longer includes cry analysis and does not record audio. Data created in those versions is covered by this policy, and you can ask us to delete it using the contact details below.
We may update this Privacy Policy from time to time. When we make material changes, we will update the "Last updated" date above and, where appropriate, give notice in the app. Your continued use of the Service after changes take effect means you accept the revised policy.
If you have questions or requests about this Privacy Policy or your data, contact us at:
Email: yerkebulan.personal@gmail.com
Or use our support form.
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