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
Rotate Rings
Spin, align, and unlock! Welcome to Rotate Rings — the ultimate spatial logic puzzle designed to relax your mind and sharpen your brain.
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.8
79,118 ratings · Top 5%
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.
Build your own version
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 included15 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 Rotate Rings: 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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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
Spin, align, and unlock! Welcome to Rotate Rings — the ultimate spatial logic puzzle designed to relax your mind and sharpen your brain. Observe the interlocked structures, rotate each ring, and line up the hidden gaps to break the locks layer by layer. Simple to learn, deeply satisfying to master. HOW TO PLAY • Rotate: Tap and drag to spin rings to the target angle. • Align: Match the open gaps across multiple layers. • Untangle: Free the interlocking loops one by one. • Solve: Plan your moves carefully to clear stages efficiently. KEY FEATURES • Satisfying Tactile Feel: Smooth physics, fluid animations, and crisp unlock feedback. • Clever Mechanics: Master diverse shapes — C-locks, D-rings, S-flex links, and triangle frames. • Hundreds of Levels: Thoughtfully handcrafted puzzles with a smooth difficulty curve. • Smart Boosters: Stuck on a complex knot? Use hints to reveal the next move. Ready to untangle the chaos?Download Rotate Rings today and test your spatial logic!
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
Introduce a wider variety of levels and challenges.
Assumption to check: Limited levels and repetitive gameplay.
Validate with people who use this workflow before building.
Hypothesis 2
Include friend challenges or multiplayer gameplay.
Assumption to check: Lack of social features or multiplayer options.
Validate with people who use this workflow before building.
Hypothesis 3
Create a more comprehensive onboarding experience.
Assumption to check: Inconsistent tutorial guidance.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a daily login reward system to increase engagement.
Assumption to check: No daily rewards or incentives.
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
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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.
