Sleep Smart — Privacy Policy

Effective 24 July 2026

Sleep Smart is a smart alarm for Apple Watch. It is free, and it is built so that your sleep data never leaves your devices.

What Sleep Smart stores, and where

Sleep Smart keeps the following in a private container shared by the Sleep Smart iPhone app, its watch app, and its complications on your own devices:

• your alarm schedule (wake time, smart-window length, repeat days, haptic-only preference);
• your settings (sleep goal, wind-down length, reminder and backup-alarm toggles);
• a rolling history of your recent nights (up to 120 summaries: times, sleep stages, efficiency, and a sleep score).

This data is stored on-device only. It is included in your encrypted device backup if you use one — that backup is between you and Apple, and Sleep Smart has no access to it.

Your schedule and settings are copied between your iPhone and your Apple Watch using Apple's Watch Connectivity, a direct device-to-device transfer. It does not pass through any server operated by us.

Health data

If you allow it, Sleep Smart reads the following from Apple Health so it can tell how deeply you are sleeping and when to wake you:

• heart rate
• heart rate variability (SDNN)
• respiratory rate
• sleep analysis

If you allow it, Sleep Smart writes the following to Apple Health:

• Sleep — the sleep it detects for a completed night (in-bed period, plus awake, core, and deep segments), so your night appears alongside the rest of your health data;
• Workouts — the overnight session the watch app runs. Apple Watch requires a workout session to keep heart-rate monitoring running while you sleep; this is what makes the smart alarm possible.

The Sleep Smart watch app also uses the watch's motion sensors during a tracked night to measure how still you are. Motion readings are processed on the watch and are never stored raw or sent anywhere.

Health data is used only to provide the app's features: detecting your sleep, deciding when to wake you, and showing your own insights. It is never used for advertising, marketing, or any form of data mining, and it is never shared with third parties.

You can review or revoke any of these permissions at any time in Health › Sharing › Apps › Sleep Smart, or in Settings › Privacy & Security › Health. Sleep Smart keeps working if you decline — the sleep write-back is simply skipped.

Notifications

If you allow notifications, Sleep Smart schedules two local reminders on your iPhone: an optional wind-down nudge before bedtime, and an optional backup alarm at your latest wake time in case your watch is off your wrist or out of battery. These are scheduled locally on your device; no push server is involved.

What Sleep Smart does not do

• No account, sign-in, or email address is ever requested.
• No data is transmitted off your devices by Sleep Smart.
• No advertising, no advertising identifiers, no tracking across apps or websites.
• No analytics or crash-reporting SDKs.
• No sale or sharing of personal information.

Children

Sleep Smart is not directed at children under 13 and does not knowingly collect information from anyone. Because Sleep Smart collects no data at all, there is nothing for us to receive, store, or delete on our side.

Keeping and deleting your data

Sleep Smart keeps your recent night summaries (about the last 120) on your device and discards older ones automatically. To delete everything Sleep Smart has stored, delete the app from your iPhone; the watch app and its data are removed with it. Anything Sleep Smart wrote to Apple Health stays in Health under your control, and can be deleted in the Health app.

Changes to this policy

If this policy changes, the updated version will be posted at this address with a new effective date.

Contact

Questions about privacy in Sleep Smart: amri.develop@gmail.com