App Overview

XB7 Pro Spirit Box icon

XB7 Pro Spirit Box

Janus Pedersen · Utilities

The XB7 Spirit Box / Ghost Box for mobile makes use of mobile devices

$3.99 · In-app purchases

PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.0
53 ratings · Below Average

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 included16 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 XB7 Pro Spirit Box: map the core Utilities 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

Include more diverse and user-generated sound banks.

Assumption to check: Limited sound bank options

Validate with people who use this workflow before building.

Hypothesis 2

Focus on improving user interface and app responsiveness.

Assumption to check: 3.1/5 rating indicates user dissatisfaction

Validate with people who use this workflow before building.

Hypothesis 3

Implement an onboarding tutorial to guide first-time users.

Assumption to check: No clear instructions for new users

Validate with people who use this workflow before building.

Hypothesis 4

Simplify the paywall process and provide clear value for subscriptions.

Assumption to check: In-app purchase model may confuse users

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

The XB7 Spirit Box / Ghost Box for mobile makes use of mobile devices high-end technology for sweeping randomly generated MHz frequencies. XB7 Spirit Box is a professional tool for attempting communication with paranormal entities. It uses a unique designed sweeping algorithm to generate white noise using your mobile device technology and highly sensitive sensors which theories suggest giving some entities the energy they need to be heard. When this occurs you will most commonly hear voices or sounds coming through the static in the attempt to communicate. The XB7 Spirit Box is a great tool for both amateurs and professional paranormal investigators. Please remember, we cannot guarantee that you get any results We do not have any control over the spirit realm, and that spirit or entities do not communicate on cue. Be patient when using the XB7, but we give you a tool to access it. How does it work? Our fed is in real-time through your mobiles sensors for a spirit or entity to manipulate with. We use a highly advanced sweeping algorithm, that sweeps several pre-generated frequencies. We created this app so that you should have absolutely no interference with any radio stations, so if you manage to get voices, it is a high possibility that it may be of the paranormal communication of some kind, please take note that this app is for entertainment purpose only. We Highly recommend using a portable speaker to enhance the volume, as spirit voices can be really hard to hear, but it's not a requirement. We would love to recieve result to our support E-mail if you want to share. This app is for entertainment purposes only.

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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.