# SolarJewel Engine — Celestial mechanics simulation

> Celestial mechanics simulation (iPhone/iPad app by Anya Traille.)

- Source: https://appshunter.io/ios/app/solarjewel-engine/id6760313280 (this page in markdown: same URL + `.md`)
- Developer: [Anya Traille](https://appshunter.io/developer/1616409110)
- Category: Lifestyle, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 26.2 · 22 MB
- Languages: American English
- Released: 2026-03-25
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/solarjewel-engine/id6760313280/reviews.md

## What is SolarJewel Engine?

SolarJewel Engine: A High-Precision Celestial Simulator

SolarJewel Engineis a standalone astronomical instrument built from years of devoted study in UX engineering, native development, graphics, and celestial mechanics. It was originally created for the Apple Watch and now I introduce this iPhone edition that brings this lightweight, high-accuracy engine to a larger interface.

Key Features:
- Interactive Time-Travel Gestures I designed this interface to be exploratory. You don't just look at a chart; you fully interact with it:
- Vertical Mode-Sweeping: You can swipe between Natal, Transit, Secondary Progression, and Solar Arc visualizations.
- House Simulation: Compare house systems (Placidus, Porphyry, Koch, and more) with a horizontal swipe and also see how the local horizon interacts with the ecliptic.
- Time-Animation: Swipe horizontally to travel through the planetary cycles. You can watch the aspects reconfigure in real-time as you revisit past life events or look ahead.
- Precision Controls: Long-press to quickly reset to ‘now’ without needing to go into a submenu. 

A Professional, Offline Engine SolarJewel is a Zero-Latency utility. It performs 100% of its complex calculations on-device using a licensed Swiss Ephemeris.

Total Privacy: Your birth and transit data never leave your device.

Deeply Offline: Includes a built-in database of cities and offline timezone resolution. It works perfectly in flight mode or remote locations.

Scientific Clarity: The jewel-toned scientific color palettes were designed for optical harmony and accessible data visualization


## Version history (last 5 releases)

### 1.0.4 — 2026-08-27

Bug fix: The reset to 'now' for the secondary progression and solar arc mode has been fixed.

### 1.0.3 — 2026-08-11

The application overview and instructions now updated for more inclusive access to information about the app.

### 1.0.2 — 2026-04-29

Time Travel: The time period covered for a given swipe distance has been increased, so more days are covered with a full screen swipe

### 1.0.1 — 2026-04-03

In order to ensure SolarJewel Engine delivers the best user experience possible, a contact email is now displayed directly inside the app for users who wish to ask questions, need guidance, or just want to give feedback.

### 1.0 — 2026-03-25

No release notes.

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## More apps by Anya Traille

- [MPL Colormaps](https://appshunter.io/ios/app/mpl-colormaps/id1673079270)
- [Astro Colormaps](https://appshunter.io/ios/app/astro-colormaps/id6453222231)
- [Mono Colormaps](https://appshunter.io/ios/app/mono-colormaps/id6453283694)
- [Laminar Modes](https://appshunter.io/ios/app/laminar-modes/id6457063123)
- [SolarJewel](https://appshunter.io/ios/app/solarjewel/id6756219992)

All apps by Anya Traille: https://appshunter.io/developer/1616409110

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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 2026-09-03.*