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
BitTycoon:BTC Cloud Mining
Control Bitcoin Cloud Mining on iPhone
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
546 ratings · Top 30%
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 included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 BitTycoon:BTC Cloud Mining: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Control Bitcoin Cloud Mining on iPhone Using the latest generation of cloud mining technology, BitTycoon eliminates the need for complex setup and hardware costs. Control your cloud mining contracts 24/7 from your iPhone and watch your digital wealth grow. Key Features to Become a Crypto Tycoon - Easy Daily Profits Start earning Bitcoin in 60 seconds! Our automated cloud mining algorithm runs 24/7, perfect for busy professionals and crypto newbies. - Lightweight and Fast All computations occur on cloud servers, no local device resources used - Lightning Fast Withdrawals Instantly transfer mined Bitcoin to an external wallet or exchange, no hidden fees. - Social Mining Revolution Build your mining empire! Get 20% lifetime bonuses + unlock team boosters from your friends' activity. More referrals = higher hashrate. - Transparent Real-time dashboard tracks every satoshi. [How to become a Bitcoin miner in three steps] 1. Click for 60 seconds to start mining 2. Increase computing power through daily rewards and friends 3. Withdraw BTC to your wallet at any time Cryptocurrency mining involves risks, and investments are susceptible to market fluctuations; profits cannot be guaranteed. Before participating, please conduct thorough research and only use funds you can afford to lose. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Terms of Use： https://doc.bit-tycoon.com/terms-of-use Privacy Policy： https://doc.bit-tycoon.com/privacy-policy
Written user reviews are not shown here. Check current App Store reviews >
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
Provide customizable date ranges for transaction viewing.
Assumption to check: Limited transaction history visibility
Validate with people who use this workflow before building.
Hypothesis 2
Simplify plans and provide clearer comparisons.
Assumption to check: Confusing mining plan options
Validate with people who use this workflow before building.
Hypothesis 3
Implement push notifications for earnings updates.
Assumption to check: Lack of real-time updates
Validate with people who use this workflow before building.
Hypothesis 4
Streamline the withdrawal process with clear steps.
Assumption to check: Difficult withdrawal process
Validate with people who use this workflow before building.
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
Zustand
React Navigation
React Native Reanimated
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.
