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.
App Overview
MinerX-BTC
MinerX-BTC
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 2.6
138 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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included19 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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for MinerX-BTC: map the core Finance 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 gamification elements to encourage user interaction and regular usage.
Assumption to check: Poor user engagement due to lack of features
Validate with people who use this workflow before building.
Hypothesis 2
Provide simplified visuals and clear metrics for better understanding.
Assumption to check: Complexity of tracking mining performance
Validate with people who use this workflow before building.
Hypothesis 3
Implement intelligent categorization features for transactions.
Assumption to check: Limited transaction categorization options
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a wallet management system to easily switch and view multiple wallets.
Assumption to check: Difficulty in managing multiple wallets
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
MinerX-BTC MinerX-BTC is a lightweight and user-friendly app that provides cloud-based computing and digital hash power services. With MinerX-BTC, users can easily access cloud computing resources, manage their service plans, view estimated outputs, and request withdrawals — all from one simple interface. MinerX-BTC is designed for users who want a convenient and transparent way to access cloud computing services, without the complexity of traditional hardware setup or maintenance. Key Features • Simple and intuitive user interface • Cloud-based computing and hash power management • Flexible subscription plans (weekly and yearly) • Clear display of service status and estimated outputs • Withdrawal requests supported directly within the app • Secure account system and data protection Subscription Information MinerX-BTC offers optional auto-renewable subscription plans to unlock premium features: • Weekly subscription • Yearly subscription Subscriptions are charged to your Apple ID account and renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in your Apple ID settings. Important Notice MinerX-BTC provides service-based cloud computing resources only. It does not offer financial, investment, or advisory services. Any displayed estimates or historical data are provided for reference only. Actual results may vary due to market conditions, network difficulty, or other factors. Legal Privacy Policy: https://minerx-btc.cloud/html/Privacy_Policy Terms of Use (EULA): https://minerx-btc.cloud/html/Terms_of_Service
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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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
axios
chart.js
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.
