Why One App Needs Two Voices

Most apps pick a personality for you. Co-Star is only the roast. Calm apps are only the comfort. LínBoo hands you the switch.

One truth, two ways to hear it. Your chart doesn't change between voices — only the delivery does. Sometimes you need to be held; sometimes you need to be told. A single fixed tone fails one of those needs every time.

Comfort and clarity aren't opposites. Astra isn't "less real" and Umbra isn't "cruel." Both use the same astrology. Astra orients you toward steadiness; Umbra toward the pattern you'd rather not see. You decide which you can hear today.

The choice is the feature. Giving users control over tone isn't a gimmick — it's respect. You know your own capacity better than any app does, so the voice should be yours to pick.

See it in action. Every reading in LínBoo — natal chart, horoscope, synastry, tarot — can be voiced by Astra or Umbra. Compare LínBoo to single-tone apps →

Try both free, no login: open LínBoo and toggle the voice on any reading. Full guide to the two modes →