Comparison

Kairon vs Planetary Guide

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

Head to head
About

Kairon

This app provides precise astrological calculations without interpretations. It offers extensive customization for house systems, aspects, and celestial bodies, with a wide range of charting methods and zodiacs. Users can cast charts for a vast historical period and view detailed positional data.

Highlights
  • Precise astrological calculations
  • 26 house systems
  • 29 Anayamsas
  • 23 Aspects plus parallel
  • Extensive ephemeris data
  • Multiple zodiac and chart types
  • Synastry, Composite, Transits, Progressions
Features
Read full description

Kairon is an astrology calculation software for highest precision calculations. Kairon will not do any interpretations for you, nor will it teach you astrology. ************************************************ Kairon can be very individually configured, or it can be used with the standard settings as is. All settings take immediate effect and are no longer outside of the app like in previous versions. ************************************************ Features: Self updating atlas, that will go with every update of the iOS itself. 26 house systems 29 Anayamsas 23 Aspects plus parallel Kairon contains the Ephemeris data for - Sun - Moon - Mercury - Venus - Mars - Jupiter - Saturn - Uranus - Neptune - Pluto - true and mean Nodes. Additionally you have the following Asteroids and Objects built in: - True and Mean Lilith - Chiron - Pholus - Nessus - Lilith (Asteroid) - Ceres - Pallas - Juno - Vesta - Isis - Quaoar - Sedna - Vulcan - Part of Fortune - Part of Spirit - Vertex - and more, including Eris, Witte's planets and many asteroids... You can cast your charts from the years 1200 - 2399 for all the above objects. There are two Zodiacs, one with twelve equal signs, the other with those twelve equal signs surrounded by 13 differently sized signs which reflects the actual sky at night. Included is also the medieval square chart and the two basic vedic square charts. Retograde objects are (optionally) drawn in a separate color. The chartwheel and the aspectgrid can be scaled, colors can be stored in setting objects, so you can switch your look and feel with your moods. The following Methods are implemented: - Synastry - Composite - Combine - Solar - Lunar - Transits - Progressions. In text-View you get exact planet and house positions to one second of arc. Lists can be displayed showing Firdaria Listing in Text Mode, medieval dignities, vedic dignities, positions of cusps and objects.

About

Planetary Guide

Features
Read full description

Daily Planetary Guide showing exact timing of transits for selected locations / timezones (additional timezones can be added on request. This app provides all the information that you would expect in a daily planetary guide to assist with finding the best time for opportunities. Includes many techniques used by Mundane astrologers. Planetary Guide provides: - exact transit timing (to the minute) of planets, including retrogrades and ingresses - choice of either tropical or sidereal zodiacs defaults - variety of default locations / timezones to choose from - full /new moons, solar /lunar eclipse - retrogrades, ingresses and outer planet transit for extended periods - current longitude of planets and for the sidereal zodiac navamsha and nakshatra for each planet is included - current longitude by degree - this assists users to identify planets at close degrees, planets combust Sun or planets about to leave a sign - current aspects with orbs - current aspects to midpoints - ephemeris tables - longitude and declination - 30 and 45 degree graphical ephemeris - 2 options: All planets - 15 days, Outers - 90 days - annual retrogrades - eclipse dates for a 1 year period - aspects to new and full moons - 30 days prior and post selected date - moon void of course for next 30 days - 2 heat maps - current for the next 20 days and biannual for the next 180 days. Ingresses and Direct/Retrogrades can be overlayed to each heat map - transit chart for selected locations in both round and diamond format. The diamond format used by Sidereal Astrologers has a 9th harmonic chart and a listing of planetary strengths, aspects, combustion with the Sun - sort strip for a 15 degree equivalent longitude degree - solar lunar calendar - lunar cycle - planetary cycles - select a planetary pair to show their planetary cycle by way of a pie-chart. Also includes a summary listing of various planets and their current phase in their respective cycle - add notes - aspect / retrograde / ingress / planet to degree search for a 1 year period - Watch List capability so users can add / delete selected aspects / retrogrades / ingresses / degree from the Search menu option. Items can also be added to the Watch List from Moon, Ingresses, Retro , Outers tabs and Eclipses - date picker so user can select other time periods for all calculations - high precision calculations based on the latest Swiss Ephemeris The app is easy to use with clear, concise tables setting out the information

Screenshots

Kairon4 screens
Planetary Guide4 screens

Verdict

The call

The clearest difference is update cadence: Planetary Guide at weekly against Kairon's every 3 months. Kairon's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support 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

Kairon costs $9.99 and Planetary Guide $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Kairon ships an update every 3 months, Planetary Guide weekly. The most recent releases landed on September 23, 2026 and July 16, 2026 respectively.

Scorecard2 real differences · 8 level
Kairon versus Planetary Guide: the parameters behind the verdict, then further details
ParameterKaironPlanetary Guide
Price$9.99$9.99
Rating3.0 (8 ratings) — better—
Positive reviews50.9% of reviews—
Number of ratings8 — better—
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size37 MB7 MB
Age rating4+4+
DeveloperKairon K.S.Allyson Jane Bunting

In-app purchases

None

Kairon

No in-app purchases

None

Planetary Guide

No in-app purchases

Questions

Is Kairon free?
Kairon costs $9.99, with no in-app purchases.
Is Planetary Guide free?
Planetary Guide costs $9.99, with no in-app purchases.
Do Kairon or Planetary Guide have ads?
Neither Kairon nor Planetary Guide shows ads.
Which is updated more often, Kairon or Planetary Guide?
Kairon ships an update every 3 months, and Planetary Guide weekly. Most recently, Kairon was updated on September 23, 2026 and Planetary Guide on July 16, 2026.

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