App Overview

Ecliptic Compass icon

Ecliptic Compass

wing lun tong · Navigation

Features:

$1.99

PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
3 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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A product spec, screen plans, and build steps for your coding agent.

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What's included15 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Ecliptic Compass: map the core Navigation workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Add route planning and traffic overlay features

Assumption to check: Limited functionality compared to advanced navigation apps

Validate with people who use this workflow before building.

Hypothesis 2

Provide a guided calibration process with animations

Assumption to check: Calibration can be tricky for some users

Validate with people who use this workflow before building.

Hypothesis 3

Implement offline maps download for better usability

Assumption to check: No offline functionality for maps

Validate with people who use this workflow before building.

Hypothesis 4

Enhance UI with modern design elements and animations

Assumption to check: User interface may feel basic

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Features: *Normal Compass(check the location shown in the bottom first. You can use the button in the bottom left to retrieve your current location) *Drawing the Ecliptic Plane, the Sun, the Moon and the planet symbols on the compass based on your location. *Showing the Sun, the Moon and other visible planets directions(azimuth) on the compass based on your location. *You can use the celestial bodies direction to confirm that the compass is pointing to the north. You can even using the celestial bodies' directions to manually rectify the compass pointing if it shows the pointer is offset by background noises. *Horoscope chart based on current time and location. *Custom time and location for the ecliptic plane view and horoscope view *10 random locations to see what the sky looks like in other locations. This is not just another compass App. Other than the normal compass feature. The Sun, the Moon and other planets' direction are also shown on the compass so that you know if the compass is affected by the background noise or not. We all know that the compass is easy to be interfered when you are inside a concrete house, near electronics or some other situations. But currently the built-in compass could not neutralize those background magnetic fields. Here comes this Ecliptic Compass app, you could use the Sun, the Moon's or even some planets' azimuth(direction) to know that if the compass is pointing to the north and you are heading to the right direction. As long as you could see the celestial bodies in the sky. Manually rectifying the compass, if you find that the Sun or the Moon's direction in the sky is offset quite a bit from the computed direction. You could use the Manual Rectification feature to temporarily to override the pointer so that your could still get the right direction. Power efficient, the app is designed to work offline most of the time. No unnecessary feature/APIs is called, No data collection. The location service only tries to get your coordinates at start-up or when you tap the big refresh button from surrounding hotspots, data or GPS. It uses data only when you want to use the map to retrieve a place's coordinates. You can also use the offline location database to search for the latitude/longitude from over 40 thousand cities and towns. Location database is provided by Simplemaps.com under Creative Commons Attribution 4.0. Colorful astrological symbols, we use astrology/astronomy symbols to show the luminaries, planets and zodiac signs. And the colors we use follow the astrological conventions. Renaissance astrological art, the twelve zodiac signs art is from the Zodiac Clock at San Marco square in Venice. Preset places, there are about 10 preset places(coordinates) at the moment which you could try and get the feeling about how the app works. Custom location and time, you could input the latitude and longitude and time to draw the ecliptic items and horoscope chart.

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
react-navigation
react-native-maps
expo-location
react-native-gesture-handler
BUILD KIT DIFFICULTY
Intermediate

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.