Ephemeris Sky: Astrology Chart
Natal charts, transits, houses
$9.99
Now with houses and angles: Ascendant, Midheaven and all twelve cusps in six systems - Placidus, Koch, Whole Sign, Equal, Campanus, Regiomontanus. Offline, buy once.
Ephemeris Sky turns any moment in time into a precise picture of the solar system - and the cycles that drive astrology.
Pick a date, time, time zone and place - then step forward or back by hour, day, or week - and Ephemeris Sky instantly computes:
HOUSES & ANGLES
Ascendant, Midheaven, Descendant and IC, plus all twelve house cusps in six systems: Placidus, Koch, Whole Sign, Equal, Campanus and Regiomontanus. Cusps and angles are drawn right on the wheel, and the table lists every cusp by sign and degree. Enter a place by name or coordinates - nothing is looked up online.
POSITIONS
Real geocentric positions for the Sun, Moon, and the planets out to Pluto - tropical, referred to the equinox of date, the same convention professional astrology software uses. See each body's sign, exact degree and minute, and daily motion, with retrograde clearly marked.
ASPECTS
Every aspect between the planets - conjunction, sextile, square, trine, opposition - computed from the positions and ranked by exactness. Move the orb slider to widen or tighten what counts.
CHART WHEEL
A clean, live chart wheel with the zodiac ring, house cusps, planet glyphs, and color-coded aspect lines that redraws instantly for any date.
SYNODIC CYCLE (the part most apps skip)
Track each planet's full cycle relative to the Sun: inferior and superior conjunctions, the retrograde and direct stations (the famous "U-turns"), and greatest elongations - each with a real date.
ACCURACY YOU CAN CHECK
Positions are validated against NASA/JPL Horizons across 1900-2100: better than 7 arcminutes for every body, typically under 2. Houses are exact spherical trig, with sidereal time and obliquity pinned to published worked examples. We publish the numbers instead of asking you to trust us.
WHY EPHEMERIS SKY
- Accurate astronomy computed entirely on your device
- No account, no sign-up, no ads, no tracking, no subscription
- Works fully offline
- Buy once, use forever - on iPhone, iPad, and Mac
Whether you are an astrologer tracking transits and retrogrades, a student of the sky, or just curious where the planets are tonight, Ephemeris Sky gives you the real numbers - beautifully.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
NEW: AN APPLE WATCH APP.
The chart on your wrist. The Digital Crown scrolls through time and the planets move with it. Positions, retrogrades, the Moon's phase and the events ahead are all computed on the watch itself, offline. Complications for the watch face show the current retrogrades and the next event.
Included with the app — no extra purchase.
HOUSES & ANGLES - the big one.
Ascendant, Midheaven, Descendant and IC, plus all twelve house cusps in six systems: Placidus, Koch, Whole Sign, Equal, Campanus and Regiomontanus. Cusps and the AC/MC axes are drawn on the chart wheel, and a new Houses card lists every cusp by sign and degree.
Set your place by name or by coordinates - entirely offline, with no location permission and nothing sent anywhere.
Also in this release: planetary positions are now validated against NASA/JPL Horizons across 1900-2100 (better than 7 arcminutes for every body), and the chart reads more clearly on every screen.
The developer, Koreniuk Oleksandr, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Koreniuk Oleksandr
- Size
- 9.5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 16 more
- English, Czech, Dutch, French, German, Greek, Hungarian, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Spanish, Swedish, Turkish, Ukrainian
- Age Rating
4+
- 4+
- Copyright
- © 2026 Olexander Koreniuk
