Privacy Policy and Terms of Service
Lights Out Version 1.2, 30 September 2026
Every factual claim in this document was written against the app’s source code rather than from a template, and each one was re-checked against that code before publication.
Lights Out helps you go to bed earlier. To do that it reads your sleep from Apple Health, and it can block apps you choose in the evening.
Your sleep readings stay on your phone. Your sleep stages, your heart rate, your heart rate variability and the times you went to bed are read, scored and drawn on the device, and none of them are ever transmitted.
Two small things do leave, and both are deliberate: the account you sign in with, and anything you type into the feedback form. A third leaves only if you subscribe, and it is your purchase, not your sleep.
One more can leave, and only if you add a friend: nine numbers derived from each night, your score and how long you slept among them, never your bedtime. The app tells you what is sent before you add anyone. Sharing is limited to friends you invited yourself, and turning it off deletes what was already shared.
Lights Out is made by Romain Lagrange, an individual developer, not a company.
Contact: romainlagrange33@gmail.com
No postal address is published. Under the GDPR a controller must publish an identity and a means of contact; for an individual developer an email address is sufficient.
This section exists because it is the larger half of what the app does.
| Data | Where it comes from | Where it goes |
|---|---|---|
| Sleep stages, sleep and wake times | Apple Health, read only | Stays on the device |
| Heart rate, heart rate variability | Apple Health, read only | Stays on the device |
| Your night history, and your score on any night you have not shared | Computed on the device | Stays on the device |
| The apps you choose to block | Apple Screen Time | Stays on the device |
| Your wake-up time, your target sleep, your name | You, during setup | Stays on the device |
| Your alarm | Apple AlarmKit | Stays on the device |
Health data. Lights Out asks Apple Health for permission to read sleep, heart rate and heart rate variability. It never asks for permission to write. No health MEASUREMENT is included in anything the app transmits, including feedback reports, and that is an engineering constraint in this codebase rather than a marketing line. Your stages, your heart rate, your heart rate variability and your bed and wake times have no path off the device at all.
The one exception is the one you choose: if you add a friend, a short list of derived numbers is sent, and only those. See section 3.4.
The apps you block. When you pick apps to block in the evening, iOS does not hand the app their names. It hands back opaque tokens that only the system can resolve, and they stay in the app’s own storage on your device. We could not tell you which apps you picked even if you asked us.
Your name and your settings are stored on the device. They are not synced, not backed up to us, and not readable by us.
Lights Out is behind an account so that your settings belong to you rather than to one installation. Sign in with Apple is the only way in.
We store:
@privaterelay.appleid.com, and we never see your real
one;We do not store a password. We never see one.
If you use “Send feedback” in the app, we receive the message you wrote, and this context, so that a bug report is actionable rather than a shrug:
No sleep measurement is included. Not a duration, not a score, not a heart rate. “Whether the app has any nights” is a yes or no about the state of the app, not a number about you.
The screen tells you this before you send, in the same words.
This is the only feature that sends anything derived from Apple Health, and it is off until you add a friend.
What is sent. For each night you share, nine numbers and nothing else:
What is never sent. Not the time you went to bed, not the time you woke up, not how long you spent in bed, not the shape of your night minute by minute, not your heart rate, not your heart rate variability, not your breathing rate, not your first name.
Your bedtime deserves its own line, because it is the subject of the app and it still does not leave your phone. A regularity score says how tightly grouped your bedtimes are; it never says what they were, and none of the nine numbers above can be used to work them out.
Who can read it. Only people you became friends with, and you become friends only when one of you sends an invite link and the other opens it. There is no search, no directory, and no way for a stranger to find you. Removing a friend also blocks them, so the same link cannot rebuild the connection.
How long it is kept. Thirty five days. A daily job deletes anything older, because no screen in the app looks back further than a week.
How to stop. One switch in your profile. Turning sharing off deletes every night you have already shared, not just the ones to come.
Why we ask you explicitly. Sleep is health data, which the GDPR treats as a special category. The only lawful basis for sharing it here is your explicit consent, so the app asks for it at the moment you add a friend: the sentence next to the button says what is sent, before you tap it. The full list, and the switch to withdraw, are in your profile, under Sharing.
Lights Out Pro is sold by Apple, through the App Store. We never see your card, your billing address, or your Apple Account.
The app uses RevenueCat to check whether your subscription is active. What that means in practice:
RevenueCat is in the United States. Your purchase history also lives with Apple, under Apple’s own policy, because Apple is the merchant.
Cancelling is done in the App Store, in Settings, and not by us. If you subscribe with a free trial, the app schedules one reminder, two days before the first charge. That reminder is a local notification: it is scheduled on your phone, it never reaches a server, and no push token exists in this app.
No analytics. No crash reporting service. No advertising identifier. No tracking, in the App Store’s sense or any other. Of the app’s forty-six dependencies, not one is an analytics, attribution or advertising library, and exactly one third party SDK collects anything at all: RevenueCat, which receives your purchase history and nothing else. See section 3.5.
We do not sell data. There is no data to sell.
Four companies, each for one job:
| Who | What they do | Where |
|---|---|---|
| Supabase | Hosts the account database and the feedback table | Paris, France (eu-west-3) |
| Resend | Delivers a feedback report to us as an email | United States |
| RevenueCat | Tells the app whether your subscription is active | United States |
| Apple | Sign in with Apple; the App Store | Per Apple’s own policy |
Your feedback report reaches us as an email, so it passes through Resend and then sits in a normal mailbox, with the ordinary consequences that has.
Apple Health data and Screen Time selections reach none of them, because they never leave your device. RevenueCat in particular receives your purchase and no part of your account: see section 3.5.
Your account and its data live until you delete the account. There is no other clock.
Feedback reports are kept as long as they are useful for fixing what they describe, and the copy that arrived by email lives in a mailbox like any other message. Deleting your account removes the reports from our database; it cannot un-send an email that already arrived.
In the app: Profile, then Account, then Delete account. It is immediate and it is not reversible.
When you do that:
Your sleep stays in Apple Health. Lights Out only ever read it. Deleting your account does not touch it, and you can revoke the app’s access at any time in Settings, Privacy and Security, Health.
If you are in the EU or the UK, the GDPR gives you the right to access, correct, export, delete, or object to the processing of your personal data, and the right to complain to a supervisory authority (in France, the CNIL).
In practice, for this app:
Lights Out is not directed at children under 13, and we do not knowingly collect anything from them.
If we start collecting something new, this page changes in the same release that collects it, and the app’s own disclosure sentence changes with it. The date at the top is the version you are reading.
romainlagrange33@gmail.com