Nightkettle: privacy policy (TEMPLATE)

TEMPLATE. Have it reviewed by a qualified professional before publishing. Replace every [BRACKETED] placeholder. It describes the app as built on 15 Oct 2026 (no accounts, no analytics, data on the device). If you add analytics, crash reporting, payments inside the app, sync or a backend, rewrite it. Publish it as a normal web page (not a PDF) at a stable URL, e.g. https://[DOMAIN]/softsleep/privacy, and link it from the app and every store listing.

Effective date: [DATE] Who we are: [YOUR NAME OR BUSINESS NAME], [ADDRESS], [CONTACT EMAIL] ("we", "us").

The short version

Nightkettle does not collect, receive, sell or share your personal data. There is no account and no sign-in. The app does not use analytics, advertising or tracking. What you enter is stored only on your device, in your browser's local storage for this app, and stays there until you delete it.

What the app stores, and where

The app stores the following on your device only: sleep-log entries (dates, bedtimes, wake times, optional ratings), your sleep goal, wind-down session history, bedtime-reminder settings, sound mixer levels and theme.

This data is stored under Nightkettle's keys in your browser's or app's local storage. We cannot see it, access it, back it up or recover it.

• Notifications (optional): if you allow notifications, reminders are created on your device while Nightkettle is open. No push server is used and nothing is sent to us.
• Audio: sounds are generated on your device with the Web Audio API. The app does not use the microphone.
• Export / import: CSV and JSON exports are files you create and control. Imported files are read on your device only.

What we do not do

• We do not run servers that receive your app data.
• We do not use cookies, analytics, advertising IDs, fingerprinting or third-party SDKs.
• We do not sell or share personal data, and we do not use it for advertising.
• The app's Content Security Policy blocks connections to third-party servers.

Website hosting and app stores

• Hosting: the app's files are delivered by [HOSTING PROVIDER, e.g. Netlify / Cloudflare]. Like any web host, it may automatically process technical data such as your IP address, browser type and request time in server logs to deliver and secure the site. That processing is governed by [HOSTING PROVIDER]'s privacy policy: [LINK]. (Check your host's logging and retention settings.)
• App stores: if you install Nightkettle from [Google Play / Microsoft Store / Samsung Galaxy Store / Apple App Store], the store may collect data about your purchase and download under its own privacy policy. We receive only the aggregated or limited information those stores provide to developers, such as install counts and purchase records.
• Payments: if you buy from us directly, the payment is processed by [Stripe / Lemon Squeezy / Gumroad], which acts under its own privacy policy. We receive the order details needed to fulfil and support your purchase ([name, email, country, order ID]).
• Support emails: if you email us, we use your email and message only to reply, and keep them for [PERIOD].

Your choices and control

• Delete your data: clear this site's data in your browser settings, or uninstall the app. This permanently deletes your data from the device.
• Export: use Export CSV / JSON in the app to keep a copy.
• Because we hold no app data about you, we cannot fulfil access or deletion requests for data on your device. You control it directly. For data we do hold (purchase records, support emails), contact [CONTACT EMAIL].

Children

Nightkettle is not directed to children under [13 / 16, depending on your region].

Your rights

Depending on where you live (for example the EU/UK under GDPR, or California under the CCPA/CPRA), you may have rights over personal data we hold, such as purchase or support records. Contact [CONTACT EMAIL]. [Add a lawful basis, controller details and your supervisory authority if you are subject to the GDPR.]

Health-related information

Anything health-related you enter stays on your device and is never transmitted to us. (Reviewer: confirm the position under US state consumer-health-data laws, e.g. Washington's My Health My Data Act, and the FTC Health Breach Notification Rule, given that no data is collected.)

Changes

If this policy changes, we will update the effective date above and, where the change is significant, tell you in the app or on this page.

Contact

[YOUR NAME OR BUSINESS NAME]. [CONTACT EMAIL]