Skyplot: Birth Chart Maker

Skyplot turns your birth date, time and place into an accurate birth chart (natal chart): planets in signs, houses and the aspects between them, with your Sun, Moon and rising sign (the Big 3) at a glance. It works offline, needs no account, keeps your data on your phone and has no subscription.

Positions are calculated on your phone and were checked against JPL Horizons data. Placements come with short, plain-language explanations based on the calculation. All interpretation texts are included without Pro. They describe and invite reflection; they do not promise outcomes.

What you get
- Birth chart (tropical zodiac): planets, signs, houses and aspects, calculated from the details you enter.
- Big 3: Sun, Moon and rising sign, each explained in a few lines, plus a card to share. A quick rising sign and Moon sign calculator.
- Daily sky note: a personal note based on your own chart. It states the astronomical fact, a traditional association and a question to think about.
- Compatibility score: a percentage and five areas (emotional bond, communication, attraction, long term, daily rhythm), your similarities and differences, and a card to share. Send a link to a friend to compare; nobody has to create an account.
- Sky calendar: add shared sky events (retrogrades, eclipses, Moon phases, sign changes) to your phone calendar.
- Birth time check: see which placements shift if your birth time is off by 15, 30 or 60 minutes.
- Place and time zone check: confirm the birthplace and see the historical UTC offset used in the calculation.
- Home screen widget: today's note and the Moon phase without opening the app.
- Learn: ten short lessons on signs, planets, houses, aspects, the rising sign and why the birth time matters.

Pro (one-time purchase, no subscription)
- 12-month personal calendar
- Notifications for personal transits: off by default, you choose the types, at most one a day
- Unlimited people and the full list of aspects between two charts
- PDF export
- Additional house systems
- Solar return chart

Good to know: For entertainment and self-reflection only. It is not a prediction of the future and not medical, legal or financial advice. How accurate a chart is depends on the birth time you enter.