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Almost always this is birth time. Lumen needs an accurate birth time (down to the minute) to place your Ascendant and house cusps correctly. If you only know "morning" or you guessed, your rising sign and houses will drift. Pull your birth certificate, or ask a parent — even a 10-minute correction can change the chart noticeably. Update it any time in Profile → Birth details.

Open Lumen → Profile → Birth details → tap any field to edit. Lumen recomputes your chart immediately. Saved transit readings from before the update keep their original chart; new ones use the updated chart.

Yes — leave the time empty and Lumen draws a "solar chart" using 12:00 noon. Your sun sign, planet placements, and most aspects will be accurate; only your rising sign and house cusps will be uncertain. You can switch to a full chart any time once you find your birth time.

Pro unlocks full daily transit readings (not just sun-sign horoscopes), synastry compatibility between two charts, unlimited tarot spreads with classical interpretations, saved chart history, and ad-free everything. Weekly is $9.99/wk. Annual is $59.99/yr with a 3-day free trial.

Subscriptions are managed by Apple. Open iOS Settings → tap your Apple ID at the top → Subscriptions → Lumen → Cancel Subscription. Pro features stay active until the end of the current billing period.

Refunds are handled by Apple. Visit reportaproblem.apple.com and select the Lumen purchase. We can't issue refunds directly. If you were charged after cancelling a free trial, that usually means the cancellation happened less than 24 hours before the trial ended — Apple's policy applies.

Yes. By default, your birth data lives only on your device. If you turn on cloud backup, it's encrypted at rest on our EU servers. We don't sell your data, share it with advertisers, or send it to third-party AI providers. See our Privacy Policy for full details.

Open Lumen → Settings → Privacy → Delete my data. Local data is wiped immediately, cloud backups are removed within 30 days. You can also email support@lumen.app with subject "Delete my data" and we'll process it within 72 hours.

Yes, properly random. Lumen uses a cryptographically seeded shuffle (not a deterministic loop) so two consecutive draws from the same spread won't repeat. Interpretations are grounded in classical Rider-Waite-Smith meanings, with positional context for each card in the spread.

Most apps give you a sun-sign horoscope — the same text for everyone born across a 30-day window. Lumen reads today's planetary positions against your full natal chart, so what you see depends on your moon, rising, Mercury, Venus, and current transits — not just your sun sign.