App Overview

Subpoint: ISS Atlas icon

Subpoint: ISS Atlas

Maximilian Weber · Education

Subpoint shows you where the International Space Station is right now,

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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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> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for Subpoint: ISS Atlas: map the core Education 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

Introduce gamification elements and interactive learning modules.

Assumption to check: Limited interactivity with ISS tracking and learning resources

Validate with people who use this workflow before building.

Hypothesis 2

Add social sharing options and forums for user discussions.

Assumption to check: Lack of user engagement features

Validate with people who use this workflow before building.

Hypothesis 3

Implement offline downloads for articles and ISS data.

Assumption to check: No offline access to learning resources

Validate with people who use this workflow before building.

Hypothesis 4

Offer a more generous free trial and valuable content to entice users.

Assumption to check: High churn rate due to paywall

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

Subpoint shows you where the International Space Station is right now, who is on board, and what the crew is doing today. Unlike other ISS trackers, it doesn't stop at the dot on the map. Subpoint connects live orbital data with the daily story of the station: which experiments are running, in which module they live, and which astronauts are working on them. It's a tracker, a crew companion, and a research atlas - in one beautifully made app. CORE FEATURES • Live ISS tracker - see the International Space Station overhead in real time, with precise orbit computation from current TLE data. • Pass predictions - find out when the ISS is visible from your sky with the naked eye. Your location never leaves your device. • Crew on board - full profile for every astronaut on the station: mission, agency, biography, time in space, spacewalks. • Daily activity - what the crew did today, structured from NASA's official Space Station Blog and linked to research experiments and the modules they live in. • Experiment depth - every research experiment explained in plain English: what it studies, who runs it, in which module. Sourced from NASA's own catalogs. • 3D module viewer - explore the ISS from the inside, with real racks and hardware. Tap a module and see what is happening there right now: Kibo, Columbus, Destiny, Harmony, Tranquility and more. • Expeditions - every crew rotation since the station's first expedition: patches, members, mission highlights, attached spacecraft. Over 70 expeditions accessible. • Beautiful design - Subpoint is built for ISS enthusiasts who want a tracker that respects their attention. No ads, no tracking, no clutter. DATA SOURCES NASA, ESA, JAXA, Roscosmos. Orbital data from Celestrak and Space-Track. Images from Wikimedia Commons. PRIVACY Your location never leaves your device. We don't track users. No ads. No analytics. No third-party SDKs collecting anything. Subpoint is a companion app for people who want more than a position on a map - for people who want to know what the International Space Station is doing, right now, today, every day.

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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.

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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.