# astrx Calculator — A Tool for Astrological Lots

> Astrological lots calculator with extensive formulas and customizable features. (iPhone/iPad app by Alexander Genna.)

- Source: https://appshunter.io/ios/app/astrx-calculator/id1609741077 (this page in markdown: same URL + `.md`)
- Developer: [Alexander Genna](https://appshunter.io/developer/1609741079)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.6 · 6 MB
- Languages: English
- Released: 2022-04-08
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/astrx-calculator/id1609741077/reviews.md

## What is astrx Calculator?

astrx makes the calculation of astrological lots simple, allowing you to focus on the Astrology.
You'll appreciate its simple, intuitive interface, and love the every growing list of lot formulas it puts in your pocket. Whether you're a practicing astrologer, or just an enthusiast looking to explore this fascinating technique with your own chart, you'll find astrx an invaluable tool if you have an interest in working with Astrological Lots. 

- Enter Zodiacal Placements
- Displays Decimal Degree of Entered Placements
- Provides alternative calculation (by counting of whole signs) option
- Easily Swap Zodiacal Placements for Sect Reversal
- Tap to Send the Calculated Lot Placement to the "Begin At" or "Count To" Field for the Next Calculation
- Pin Lots you are working with for easy recall, and reference to Sign, Lord and Term Lord
- Review many Lots Formulas in the List of Lots
- Search the List of Lots by Name, Common Synonym and Keywords
- Search the List of Lots with Logical AND|OR comparison of Significators
- Set Display Colors to Increase Contrast, or Just Match Your Mood
- Determines Whole Sign House of the Calculated Lot
- Automatically Displays Modality of the House and Triplicity of the Sign
 -- Automatically Determines Essential Dignities of the Calculated Lot
 -- Domicile Rulership
 -- Triplicity Rulership
 -- Term Rulership
 -- Decan Rulership

 -- Calculates Dodekatemorion (12th part) of placement
 -- Calculates Antiscia and Contra-Antiscia
 -- Calculates Zodiacal Midpoint of "Begin At" and "Count To" Significators

- Automatically Updates Rulerships Based on Selected Sect

- Configurable Astrological Systems
 -- Triplicity Traditions of Dorotheus or Ptolemy
 -- Systems of Terms by the Egyptian's, Chaldean's or Ptolemy's
 -- Decans in Chaldean Order or by the Triplicity Method

- Add to the Library of Lot Formulas at your Fingertips in the List of Lots
-- Compare Formulas of Different Traditional Authors in the List of Lots

CONTACT:
Do you have questions, feedback or good ideas? Are there Lots you would like to see added to astrx, we are always happy to hear from you! Please contact us at info@PracticalEndeavors.com.

Terms of Use see the Apple’s Standard License Agreement at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Calculate astrological lots
- Enter zodiacal placements
- Display decimal degrees
- Alternative calculation methods
- Pin and recall lots
- Searchable list of lot formulas
- Determine essential dignities

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Vettius Valens of Antioch | $0.99 | one-time |
| Abu Ma shar al-Balkhi | $1.99 | one-time |
| Avraham ibn-Ezra | $1.99 | one-time |
| Julius Firmicus Maternus | $0.99 | one-time |
| Dorotheus of Sidon | $0.99 | one-time |
| Guido Bonatti | $1.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/astrx-calculator/id1609741077/reviews.md

### 1/5 — Not so easy to use

*2024-12-31*

I dont find any option to load a chart or enter a chart information. There is no help menu or any kind of instructions on how to do it.

## Frequently asked questions about astrx Calculator

### What are astrological lots in astrx?

Astrological lots are calculated points in a birth chart derived from the positions of celestial bodies and angles. astrx simplifies their calculation, allowing users to focus on interpretation.

### Can astrx calculate lots offline?

The provided data does not specify offline functionality. However, as a calculation tool, it is likely to function without an internet connection once installed.

### How does astrx compare to other astrology apps?

astrx focuses specifically on the calculation of astrological lots, offering a deep dive into this particular technique. Other astrology apps may offer broader features like full chart interpretation or daily horoscopes.

### Is astrx suitable for beginners in astrology?

Yes, astrx is designed with an intuitive interface that makes it accessible for enthusiasts looking to explore astrological lots, alongside practicing astrologers.

### What astrological systems does astrx support?

astrx supports configurable systems for Triplicity Traditions (Dorotheus or Ptolemy), Systems of Terms (Egyptian, Chaldean, or Ptolemy's), and Decans (Chaldean Order or Triplicity Method).

### How often is astrx updated?

The app was last updated on March 29, 2025, with version 2025.0. This indicates a recent update, suggesting active development and maintenance.

### What devices is astrx available on?

astrx is available for iPhone and iPad devices, supporting a range of Apple mobile products.

### What is the age rating for astrx?

astrx has an age rating of 4+, making it suitable for a wide audience of users interested in astrological calculations.

## Version history (last 5 releases)

### 2025.0 — 2025-03-29

We are pleased to be able to provide the new Lot Pinning feature based on the suggestions of one of our users! When a Lot is Pinned, it is stored in a persistent list, with quick visual reference to the Sign, Sign Lord and Term Lord; and allows you to name it anything you like. Once Pinned, the lot configuration can be recalled later to access the details without having to (re)enter any placements.

Stana, thank you this was a great idea!

### 2023.0 — 2023-06-01

Options to calculate lot placement by counting whole signs added.
Additional lookup for Dodekatemorion (12th parts) added to "Additional Details" area.

### 2022.3 — 2022-09-14

iOS 16 Compatibility Update

### 2022.2 — 2022-06-22

Subscription for Premium Features Removed; Features are Part of the Free App.

New Feature Added to Search the List of Lots with Logical AND|OR comparison of Significators
- minor changes to astrological glyphs used to improve legibility

### 2022.1 — 2022-05-23

New Features:
"Copy to Pasteboard" for Calculated Lot Placement
Tap to Send the Calculated Lot Placement to Either the "Begin At" or "Count To" Field for the Next Calculation

Additional Information on the Details Screen with Active Subscription:
Calculates Antiscia and Contra-Antiscia
Calculates Zodiacal Midpoint between "Begin At" and "Count To" Significators

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*