Comparison

Celestium vs Orbit Astro Calendar

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Celestium

Explore personalized astrological insights for life's decisions. Discover ideal locations for love, work, and growth, and understand daily cosmic weather. Engage in guided rituals and connect with others through shared astrological charts.

Highlights
  • Location scoring for love, work, vitality, and growth
  • Daily cosmic weather and moon phase tracking
  • Guided rituals for moon phases
  • Couples and group chart analysis
  • On-device chart computation with no tracking
  • AI interpretations via user's Anthropic API key
Features
Read full description

Celestium isn't a horoscope written for millions at once. It's your actual birth chart, the real sky of the moment you were born, read alongside the traditions that have studied the sky longest. A compass through life, not a crystal ball. YOUR SKY REPORT Each New Moon, a report gathers what you wrote, the sky it met, the patterns that keep coming back, and what returns next. A Yearly report arrives at your solar return. Tell it "This landed" or "Not me" and it listens. The report and everything you wrote are free. THE TRADITIONS Western astrology from Hellenistic to modern, Vedic charts, BaZi, the Maya Tzolkin, Tibetan astrology, the Tong Shu almanac, Feng Shui flying stars, Hermetic Qabalah with your tarot birth cards, numerology, tarot and the I Ching. Choose the ones that speak to you; the app follows your choice. YOUR OWN RECORD Journal, check in, and edit any entry later. Each entry keeps the sky it was written under, so when that sky returns you can see what you wrote last time. Tag by feeling, milestone and tradition, and related entries gather into threads. YOUR CHART, PIECE BY PIECE Blueprint teaches each placement, angle and aspect, then asks you to name how it lives in you, until it is yours and not just words on a page. WHERE YOU THRIVE Your chart mapped onto the whole planet. Score thousands of cities for love, work, vitality and growth, compare them side by side, and trace the Lots too, Fortune, Spirit and six more. WHEN TO ACT Daily sky, moon phases and the transits touching your chart, from today out to the year. Electional timing reads three ways, Medieval, Hellenistic and Vedic, with the conditions each tradition names. A FULL READING, NO AI NEEDED A complete natal reading composed on your device from a deep interpretation library. Optional AI interpretations work with your own Anthropic API key, so your chart goes straight to Anthropic, never through us. SHOWS ITS WORK Every technique names its sources: the tradition, the text it rests on, and the method behind the number. Zodiacal releasing, firdaria, profections, returns, horary, progressions, solar arc, BaZi, Vedic, Feng Shui, the Maya Tzolkin, numerology, Hermetic Qabalah and tarot all cite the lineage they come from. RITUAL, DIVINATION AND SKY LETTERS Guided practices for each moon phase. Draw a tarot spread or cast the I Ching. Seal a letter to a later self under tonight's sky; it opens when the moment you choose returns. TOGETHER Synastry, composite and the places that hold you both, or group mode for three to six. Invites are encrypted end to end. REAL ASTRONOMY, NOTHING LINKED TO YOU Positions come from a built-in VSOP87 engine, not a borrowed API. Your chart is computed on your device. There is no account, nothing the app collects is linked to you, and Settings can erase everything. Celestium Premium opens the full app: unlimited saved charts, couples and group mode, the full city atlas, export and shareable cards, deeper Sky Reports, and the full depth of Blueprint, your reading and the year ahead. Subscribers can also use Premium on the web. Astrology here is for reflection, not prediction. A way to read the weather instead of a forecast you have to obey. If you have any issues please reach out to us at jhinna@withjhinna.com Privacy Policy: https://celestium.me/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Orbit Astro Calendar

This app presents astrological events as calendar entries, including moon phases, sign changes, and planetary aspects in plain text. It offers personalized transit tracking based on your birth details and allows integration with your device's calendar.

Highlights
  • Astrological events as calendar entries
  • Personalized transit tracking
  • Moon phases and eclipses
  • Planet sign changes and stations
  • Plain language aspect descriptions
  • Support for Western or Vedic zodiac
  • Calendar integration and reminders
Features
Read full description

Orbit Astro Calendar is the astrological sky as a calendar. Every Moon phase, every Void Moon, every sign change and station, and every exact aspect appears as an event at its minute, in your own time zone. There are no glyphs to decode: each one is a plain easy-to-read text, like “Mars in Leo square Saturn in Scorpio at 3°14′.” WHAT’S INSIDE • My transits. Add the date, time, and place you were born, and Orbit shows when the current sky meets your birthday sky. Your birth details stay on your phone. • Moon phases to the minute, with the solar and lunar eclipses. • Void Moons, with how long each one lasts. • Ingresses and stations: the Moon and planets entering new signs, turning retrograde, and turning direct. • Aspects: the five major ones between the Sun and Pluto, each spelled out in a plain sentence. • Asteroids, Chiron, the North Node, and Lilith, for those who follow them. • Eight fixed stars: Aldebaran, Regulus, Antares, Fomalhaut, Spica, Sirius, Algol, and Alcyone. • Western or Vedic: the tropical zodiac, or the sidereal (Lahiri). A PLAIN LANGUAGE ASTROLOGY CALENDAR Day, 2-day, week, list, month, and year views, with every kind of event in its own color. Turn any of them on and off. Tap an event to add it to Apple Calendar, or to be reminded the moment it happens. Put the Moon’s sign on your Lock Screen. Light and dark, on iPhone and iPad. HOW IT’S CALCULATED Positions come from NASA JPL’s DE440 planetary ephemeris, the same data the Jet Propulsion Laboratory uses to navigate spacecraft; Chiron and the asteroids from JPL Horizons. Everything is worked out on your phone. It covers 2026 through 2029 and will be extended each year. PRIVATE BY DESIGN No account, no tracking, no ads. Nothing you enter leaves your phone. SUBSCRIPTION Try every Orbit free for a week. Then $1.99 a month, or $15.99 a year (save 33%). Payment is charged to your Apple Account when the free week ends. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period, in your iPhone’s Settings → Apple Account → Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://orbitastrocalendar.com/privacy Orbit Astro Calendar is a project from 101 Editions. The calendar feeds without the app are free at orbitastrocalendar.com.

Screenshots

Celestium4 screens
Orbit Astro Calendar4 screens

Verdict

The call

The clearest difference is monetization model: Celestium at freemium against Orbit Astro Calendar's subscription. Celestium also leads on ratings volume (4 vs 1). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Celestium sells 2 in-app purchases, starting at $6.99 per month and Orbit Astro Calendar sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Celestium against 5.0 for Orbit Astro Calendar. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

UpkeepUpdate frequency

Celestium ships an update every 5 days, Orbit Astro Calendar weekly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Celestium versus Orbit Astro Calendar: the parameters behind the verdict, then further details
ParameterCelestiumOrbit Astro Calendar
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings4 — better1
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterSubscription
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size146 MB11 MB
Age rating4+4+
DeveloperJhinna Salinas101 Editions

In-app purchases

2 purchases

Celestium

Subscriptions2
  • Premium Monthly3 Days trial$6.991 Month
  • Premium Yearly3 Days trial$42.991 Year
2 purchases

Orbit Astro Calendar

Subscriptions2
  • Every Orbit Monthly7 Days trial$1.991 Month
  • Every Orbit Yearly$15.991 Year

Questions

Is Celestium free?
Celestium is free to download, with in-app purchases available.
Is Orbit Astro Calendar free?
Orbit Astro Calendar is free to download, with in-app purchases available.
Which has better reviews, Celestium or Orbit Astro Calendar?
Celestium and Orbit Astro Calendar are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do Celestium or Orbit Astro Calendar have ads?
Neither Celestium nor Orbit Astro Calendar shows ads.
Which is updated more often, Celestium or Orbit Astro Calendar?
Celestium ships an update every 5 days, and Orbit Astro Calendar weekly. Most recently, Celestium was updated on October 31, 2026 and Orbit Astro Calendar on November 6, 2026.

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