Is EsperOwl a free astrology app?

Yes, to download and to use for your own chart. The live sky, your transits and five Ask the Owl questions a day are free. Premium adds timing tools, chart comparisons and transit alerts; nothing you were given free is taken away.

How accurate are the charts and transits?

Positions come from the Swiss Ephemeris, the data set professional astrology software uses, to arcsecond precision. The app computes them on your device and is tested against the same server that drives this site, so a transit time in the app matches the one here.

How is this different from a daily horoscope app?

A daily horoscope is written for one twelfth of the world at once. EsperOwl starts from your exact birth chart and reads today's transits against it, so two people born on the same day but at different times see different days.

Does the app work offline and without a birth time?

Charts and transits are calculated on the phone, so they work offline; written readings and Ask the Owl need a connection. Without a birth time the planets are still right, and the houses and Ascendant are marked as unreliable rather than guessed.

Which devices and languages does EsperOwl support?

iPhone, iPad and Android phones and tablets, in English, Spanish, German, French and Brazilian Portuguese. One sign-in works across all of them and on this site.

Astrology app · iPhone, iPad & Android

The astrology app that reads your own birth chart.

EsperOwl watches the sky against your chart: today's transits with their orbs, what is coming in the weeks ahead, the best days to act, and answers to your questions — calculated on the Swiss Ephemeris, even offline.

Free to download. Your own chart is free for good.

Or cast a free birth chart in your browser

EsperOwl birth chart wheel with houses and aspects

EsperOwl's Today screen: the Moon's degree and sign, void-of-course status, the next lunation and today's transits to a birth chart

Inside the app

Everything your chart is doing, in one astrology app

Not a sun-sign horoscope. Every screen in EsperOwl is calculated from your own birth date, time and place, and shows the placement, the orb and the date it comes from.

Arcsecond
Swiss Ephemeris precision
Offline
Charts and transits computed on the device
5 languages
English, Español, Deutsch, Français, Português
iPhone · iPad · Android
One account across all of them

EsperOwl Today screen with the live Moon, retrogrades and the transits to a birth chart

01Today

A daily horoscope built from your own transits

Today opens on the Moon's exact degree, whether it is void of course, the next lunation and every transit touching your chart right now — each with its orb and the minute it goes exact.

Live Moon, void-of-course and retrograde status
Your transits, applying or separating, with exact times
A daily reading written from those transits

EsperOwl natal chart wheel with houses, aspect lines and planetary glyphs

02Birth chart

A birth chart accurate to the arcsecond, even offline

Cast your natal chart and the charts of everyone you care about: the wheel, the Big Four, every placement with its house, the aspect grid and chart balance — computed on the phone with the Swiss Ephemeris.

Placidus, Whole Sign, Koch and other house systems
Aspects with exact orbs, dignities and minor aspects
An unknown birth time is marked, never guessed

EsperOwl transit timeline: a 30-day intensity chart and a dated list of exact transits

03Transit timeline

See which transits are coming, weeks and months ahead

A month of transits to your chart at a glance, with the peaks marked in gold and every exact hit listed by date — supportive or challenging — so you can plan rather than react.

Week, month, year and outer-planet views
The exact date and time of every hit
A reminder before a transit goes exact

Ask the Owl chat answering whether this is a good month to ask for a promotion, citing the transits

04Ask the Owl

Ask an AI astrologer about your own chart

Ask in your own words — about work, love or timing. Ask the Owl answers from your actual placements and the transits running now, and shows the aspects it read from, so you can check the working.

Answers cite the transits behind them
Five free questions every day
Your conversations saved to your account

Best days

Find the best day to launch, sign, travel or rest

Pick what you are planning and the month is ranked against your chart — strong, workable or avoid — with the reasons the best day wins: the Moon's condition, the rulers and any hard contacts.

EsperOwl best-day planner: a month calendar ranked strong, workable or avoid, with the reasons for the best day

Compatibility

Synastry and compatibility, with every aspect shown

Compare your chart with a partner, a friend or your family. See attraction, ease and longevity, every cross-aspect with its orb, and the house overlays — your Venus in their 7th, their Moon on your Ascendant.

EsperOwl synastry screen with attraction, ease and longevity scores and the cross-aspects between two charts

Astrocartography

An astrocartography map of where your planets rise

Your planetary lines on a world map — where Venus culminates, where Jupiter rises — with the cities on each line and what the line is traditionally read for. Then cast your chart relocated to any of them.

EsperOwl astrocartography map with planetary MC and Ascendant lines across the world

iPad

Made for iPad, too

Two panes on the larger screen: your chart beside its readings, Today beside the hour-by-hour plan — in portrait or landscape, with the same account as your phone.

Free to start. No sun-sign filler.

Download EsperOwl free. Your own chart, the live sky and five Ask the Owl questions a day stay free. Premium adds timing — the exact minute a transit perfects, the best days in a month — plus chart comparisons and transit alerts.

EsperOwl on iPad: the Today screen in a two-column layout with a side menu

See everything in the app

Free on the web

Cast a birth chart free, right in your browser

Charts, transits and calendars run in the browser with no account. The tools that need your saved data or run in the background live in the app.

All tools

Natal chart
Wheel, placements and aspect grid from birth date, time and place.
Free · no account
Current transits
What is aspecting your chart right now, with orbs and whether each is applying or separating.
Free · no account
Retrograde calendar
Every station and retrograde window for the next eighteen months, with the exact time each planet turns.
Free · no account
Next full moon
The exact minute of the next full moon, in your own timezone, with the sign it falls in.
Free · no account
Solar return
The exact minute the Sun comes back to its birth degree each year, and the chart for that moment.
Free · no account
Saturn return
The exact dates Saturn comes back to where it stood at your birth — usually three, with the stations that space them.
Free · no account
Synastry
Two charts side by side, cross-aspects listed and ranked.
Free · no account
Best-day planner
Days ranked against your own chart. Preview here, plan in the app.
In the app
Transit alerts
Notifications that fire on orb, not on the calendar month.
In the app
Astrocartography
Your planetary lines on a world map, relocatable.
In the app
Ask the Owl
Questions answered against your placements, with the technique shown.
In the app

Take it with you

More apps from the same studio

Sky Today

Retrograde tracker

Live

Which planets are retrograde, when they station, and whether it touches your chart at all. One question, answered every morning with a widget and a notification.

Nyra

Chakra healing

Live

Guided sessions, breathwork and a daily energy check-in, mapped to the seven centres. Written for a Western reader — the tradition explained, not assumed.

Chogadiya, Vyom, VedKal and the rest live at myoracular.com. Same account, same standard of explanation.

See the full range

One account

Your charts and orders in one place

Cast a chart on your laptop, open it on the train. Every chart you save and every order you place sits behind a single sign-in, on web and mobile alike.

Questions about the EsperOwl app

Is EsperOwl a free astrology app?: Yes, to download and to use for your own chart. The live sky, your transits and five Ask the Owl questions a day are free. Premium adds timing tools, chart comparisons and transit alerts; nothing you were given free is taken away.
How accurate are the charts and transits?: Positions come from the Swiss Ephemeris, the data set professional astrology software uses, to arcsecond precision. The app computes them on your device and is tested against the same server that drives this site, so a transit time in the app matches the one here.
How is this different from a daily horoscope app?: A daily horoscope is written for one twelfth of the world at once. EsperOwl starts from your exact birth chart and reads today's transits against it, so two people born on the same day but at different times see different days.
Does the app work offline and without a birth time?: Charts and transits are calculated on the phone, so they work offline; written readings and Ask the Owl need a connection. Without a birth time the planets are still right, and the houses and Ascendant are marked as unreliable rather than guessed.
Which devices and languages does EsperOwl support?: iPhone, iPad and Android phones and tablets, in English, Spanish, German, French and Brazilian Portuguese. One sign-in works across all of them and on this site.

Birth date, time and place. Nothing else needed.

Start with your chart.

Get the app to have your transits watched for you, or cast a free birth chart right here in the browser.

Cast a free chart

No account, no email address, no usage limit. The chart is calculated, shown to you, and never stored.