Retrace: Birth Time Explorer

Know your birth time only as a range? Retrace looks at the hours in that range and works out which of them have the most astrological contact with the big events of your life: a marriage, a move, a child, a new job.

• Set your window: pick a preset (morning, midday, afternoon, night) or choose your own.
• Add your events: short questions walk you through your life, one period at a time. Enter each date as closely as you remember it: day, month, season, year or age.
• See the contact: the hours your events touch most, how that contact spreads across your window, and the reason behind each event.
• Birth chart: watch the rising sign shift across your window, and see planet positions and houses on the wheel for any minute you pick. Choose Whole Sign or Placidus houses.

Retrace doesn't give you a birth time. We measured it on documented cases: the peaks did no better than random hours at pointing to the real birth time, and the result screen always says so. Retrace is a tool for exploring and calculating. It offers no interpretation and promises no answer.

Nothing is sent to our servers. Every calculation runs on your device, and there's no account to create. Your cases stay on this device and in your own Google backup.

Free: 1 case, 4 events in total.
Premium (one-time): up to 3 cases, unlimited events, PDF report, sensitivity page, comparison with a documented time.
Pro (one-time): everything in Premium, unlimited cases, plus technical weight and orb settings (labeled as unmeasured).
No subscription.