Apple’s Time in Daylight category exists so your phone can reflect a simple fact: how long you spent in daylight. Basky can participate in that story — carefully. If you turn on Save to Apple Health, Basky may write the duration of relevant outdoor time as Time in Daylight. That is the entire Health sentence.

Everything else people worry about — Basky mining your sleep, rewriting medical records, uploading IU numbers — is off the table by design. For the broader product Privacy story, see the site’s Apple Health daylight notes at /apple-health-daylight alongside this guide.

What Basky writes

When enabled, Basky writes Time in Daylight: a duration. Think minutes you spent in a bask session (and related daylight the product defines for that write). It is a factual time quantity, not a diagnosis and not a nutrient.

That matches how Health likes to store lifestyle signals: timestamps and amounts you can glance at in the Health app’s daylight charts over weeks.

What Basky never does with Health

  • Never reads health data — not steps, not heart, not sleep, not labs, not other apps’ entries.
  • Never writes the vitamin D estimate to Health. That figure is a friendly conservative estimate (~10,000 IU/MED × ~0.25 body × dose received × UVB availability, capped with the safe dose). It is encouragement inside Basky, not a Health measurement.
  • Never uses Health as a back door to build a cloud profile. Basky’s core history lives locally on your device.
  • Never requires Health to keep a daylight streak, run a timer, or check in on a cloudy day.

If a competitor blurs “synced to Health” into “we know your body,” Basky refuses that blur.

Why write duration at all?

Some people like one place — the Health app — that shows movement, mindfulness, and daylight together. Writing Time in Daylight lets Basky contribute the daylight slice without pretending to be a clinical vitamin D tool.

Others prefer Basky’s history screen alone. Both choices are valid. Opt in only if the Health chart helps you; opt out if you want fewer pipes.

How this fits the bask versus check-in model

Basky has two outdoor ideas:

  1. Safe bask — UV-aware session inside your personal window, optional friendly vitamin D estimate on screen.
  2. Daylight check-in — “I got some daylight” when the sun is resting or you simply stepped outside. See daylight check-in.

Health writes, when enabled, are about time in daylight as duration — not about exporting IU, streaks, or skin type. The vitamin D line remains Basky-local so it cannot be mistaken for a lab result in another app.

Privacy posture in one breath

  • Location (optional) → weather UV lookup only; not sold; not an account dossier.
  • Health (optional) → write Time in Daylight only; no reads.
  • Vitamin D estimate → on-device encouragement; not a Health write.
  • Core product → free without a subscription; Basky Forever is one-time cosmetics.
  • Now on iPhone.

No account is required to bask. Privacy is not a premium tier.

How Basky time relates to other Health categories

Apple Health holds many lifestyle signals. Basky only participates in Time in Daylight as a writer. It does not try to infer your vitamin D status from diet entries, does not adjust your bask window from sleep stages, and does not scrape workouts to decide you “already got enough outdoors.” The safe-sun math stays inside Basky: live UV, skin type, conservative window.

That separation is deliberate claim safety. Mixing a friendly IU estimate into Health would invite people to treat it like a lab. Keeping IU on Basky’s session and history screens preserves the label: encouragement, capped with the safe dose, not a measurement.

Daylight check-ins and what “counts”

Bask sessions are the obvious duration source. Daylight check-ins cover the days when you stepped outside but UV did not support a bask — cloudy, winter, evening. The product’s job is to keep habit and Health aligned with outdoor life, not only with high-UV performances. Exact write rules follow what the shipping app enables; the promise that matters for this page is the boundary: duration in, estimate never out, Health never read.

Family phones, restores, and Forever

Basky Forever is a one-time cosmetic unlock via Apple’s purchase system — unrelated to Health permissions. Restoring Forever does not restore Health access; Health access does not unlock skins. Privacy toggles and cosmetics stay in different drawers on purpose.

If you share a device or use Family Sharing for purchases, still treat Health permissions as personal. Revoke Basky in iOS Health anytime you want the pipe closed.

Turning it on without drama

  1. Open Basky Settings.
  2. Enable Save to Apple Health.
  3. Approve the iOS permission sheet for the relevant write.
  4. Bask or log daylight as you normally would.
  5. Open Apple Health later if you want to see Time in Daylight trends.
  6. On a gray day, check in outdoors and notice that habit continuity does not require inventing UV.

To stop, disable the setting in Basky and/or revoke Basky under iOS Health access. Your past Health entries remain under Apple’s control and policies.

Claim-safety reminder

Time in Daylight is not medical advice. A rising daylight chart does not prove adequate vitamin D status, cure insomnia, or treat depression or SAD. Basky’s safe-sun window remains the burn-aware guardrail; Health sync does not lengthen it. “Roughly a day’s worth” on a Basky estimate is a yardstick inside the app — not an Apple Health nutrient target.

For how the whole loop fits together, see how Basky works. For why Basky refuses a single outdoor minute prescription for vitamin D, see how much sun for vitamin D. More on the site: /apple-health-daylight.

Now on iOS. Core free forever; optional one-time Basky Forever for cosmetics only. General wellness guidance, not medical advice.