Everything Science of Light does

A free Vedic astrology app with the depth of the professional tools and the plain words of a good friend. No account, nothing stored on a server. Here is all of it, with a door into each.

Your day

Open the app and the day is already read through your chart: how it feels, when to act, what is sacred.

Day ringsThree scores for today, chosen by what matters to you: energy, mind, fortune, love, work and more, read from your chart and the sky.Open →How your days leanA line under the rings: the week behind and the week ahead at a glance. Drag along it to read any day.Open →Painted day platesThe day’s mood as a painting, 32 scenes by day and by night, with the rings floating on it.Open →Your best windowThe hour today that suits what you are doing, picked from the planetary hours and kept clear of Rāhu kāla.Open →Planetary hours (horā)ProScrub the whole day hour by hour and see which planet rules each and what it favours.Open →Sacred days and festivalsEkādaśī, Pūrṇimā, Pradoṣa, Diwali, Navarātri and dozens more, dated for where you are, with why each is kept and what it opens.Open →Your companionA small pixel-art being who stands with you each day, from two dozen gods and planets. Chosen by the day, by a need, or by you.Open →Your circleFollow the people you love: each one’s day read from their own Moon, the week for two, and a calendar feed.Open →JournalStamp a moment with the sky it happened under, and see your own patterns against the cycles.Open →

Your chart

A professional-grade birth chart, explained like a wise friend would explain it.

Birth chart (kundli)Sidereal positions with the Lahiri ayanāṃśa, checked to the arc-minute against the Swiss Ephemeris. A circular wheel in Lite; North and South Indian charts in Pro.Open →Every placement explainedTap any planet for what it means where it sits in your chart, in plain words first and the astrology one tap down.Open →Your twelve housesThe twelve areas of life: what each holds, which planet rules it, and how it stands.Open →The 27 stars (nakshatras)Every lunar mansion with its seal, its deity and its story, and how it stands in your sky.Open →Share poster and PDF reportYour chart as a poster to share, or a full report to keep or print.Open →Share linkSend your chart to someone as a link. Nothing is uploaded; the chart travels in the link itself.Open →

Your story

Your chart read as a story, and two charts read side by side.

Your readingA plain-language letter from your chart: who you are, what you are here to do, where it gets hard.Open →Life areasCareer, money, love and health, each with how it stands for you and why.Open →Compatibility (Match)The classical 36-point match (Aṣṭakūṭa), the Mars-flaw check with its cancellations, the exceptions, and a score for each kind of bond: partner, family, friend or colleague.Open →Care practicesThe traditional practices for your chart, each with why it is suggested and what it is for.Open →

Timing

When to begin, when to rest, and what season of life you are in.

This weekEach day ahead with its mood, its sacred days and its best hours.Open →Good timing (muhūrta)Your strongest days for the thing ahead: a launch, a move, a conversation, a trip.Open →Your seasons (dashas)Your life in chapters, each ruled by a planet, with a painted plate for the chapter you are in and when the next one begins.Open →Practice calendarProThe month day by day: fasts, festivals and your own days, with a feed your phone’s calendar can follow.Open →TransitsProThe slow sky now, planet by planet, and what it touches in your chart.Open →RewindProPick any past date and see what the sky was doing in your chart.Open →SankalpaProSet an intention and the app watches the sky for the days that carry it.Open →AlertsProExact hits coming up on your chart, with calendar export.Open →

The Pro instrument

Switch to Pro and the full classical layer opens, every number with its rule.

Strength and stateProṢaḍbala, Aṣṭakavarga, avasthās, planetary war and maturity: how strong each planet is, and why.Open →Divisional chartsProD1 to D60, the navāṃśa and the rest, one area of life at a time.Open →YogasProThe planetary combinations in your chart and what each promises.Open →Dasha systemsProViṃśottarī and the other classical clocks, with every period and sub-period dated.Open →PredictiveProTransits, profections and KP: ask the chart a real question and see whether the moment agrees.Open →Special pointsProĀrūḍhas, the special lagnas, aspects and argalā.Open →Doshas and remediesProMaṅgala doṣa, Kāla Sarpa and the rest, with their cancellations and their classical care.Open →

The gods and the stories

Behind every planet is a being, and behind the sky is a story the tradition still tells.

The UnfoldingEleven narrated scenes, painted and moving, from the first hymn to the sky you were born under.Open →The deity mapWho is who among the gods, how they are related, and which one watches over each planet, as one web you can tap.Open →The nine, as beingsEach planet as a person: its deity, its image in art, its day, its colour and its verse.Open →LessonsPlain-English lessons on reading a chart, the houses, the stars and the chapters of a life.Open →ListenMost pages can be read aloud to you, from your reading to the Unfolding.Open →

Take it further

Your chart, turned into things you can keep, ask and explore.

Soul BookWho you are, written plainly, with no astrology vocabulary at all.Open →Operating ManualForty practical questions (how to rest, focus, decide, lead, love) answered by rules applied to your chart, with the proof.Open →AI BriefingYour whole chart as one document to hand to ChatGPT, Claude or any assistant, so it reasons from real numbers.Open →The CosmosFly through the true sky you were born under, in 3D.Open →The Cosmic BeingYour chart as a figure of light: twelve regions of the body, lit by your strengths.Open →

Made for you

Free, private, and shaped to the way you like to read.

Lite and ProLite speaks plain English with the Sanskrit one tap down. Pro opens the full classical instrument. Switch any time.Open →Your coloursThe app takes your chart’s own colour, or one you choose, over eight grounds at three depths, in light and dark.Open →Text size and motionLarger text, calmer motion, and the cards you want on Today, in one settings sheet.Open →Installs like an appAdd it to your home screen; it opens instantly and works offline.Open →Free and privateNo account, no subscription, no database. Your chart lives in your browser.Open →