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
Block Blast! For Watch
Important Note: This app can only be downloaded from the App Store on Apple Watch
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.4
5 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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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included17 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 Block Blast! For Watch: map the core Games 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 varied levels, power-ups, or challenges.
Assumption to check: Limited game mechanics lead to repetitive gameplay.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize game performance and reduce load times.
Assumption to check: Low user ratings indicate dissatisfaction with performance.
Validate with people who use this workflow before building.
Hypothesis 3
Add multiplayer modes or social sharing options.
Assumption to check: Lack of social features limits engagement.
Validate with people who use this workflow before building.
Hypothesis 4
Clarify the benefits of purchases with clear onboarding.
Assumption to check: In-app purchases 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
Important Note: This app can only be downloaded from the App Store on Apple Watch. Here's how: 1. Press the Digital Crown on your watch to open the app list 2. Find and open the App Store 3. Scroll to the bottom and tap [Account] 4. Find [Purchased] to download the app Block Blast: A perfect mix of block puzzle and jigsaw puzzle games, combining creativity with the classics! With simple controls, wonderful sound effects, and a great rhythm, Block Blast will leave you wanting more! The perfect app on your wrist to kill time and relax! Block Puzzle Game Features: Simple and easy to play, an excellent choice to kill time. No WIFI or internet connection is needed, you can enjoy the block puzzle game anytime, anywhere. How to Play Block Puzzle Games: Drag and drop the blocks onto the board and clear the blocks when a column or row is filled. We will continuously provide blocks of various shapes until there is no remaining space on the board. Plan your next move as you think about what blocks might show up. No matter where you are, whether you’re tired, bored, or frustrated, this block puzzle game will always be by your side to sweep away boredom and help you relax and cheer up! Suggestions or Comments? Give us a shout at [email protected]
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.
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BUILD KIT DIFFICULTY
Starter
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.
