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
Rusty Lake: Roots
James Vanderboom's life drastically changes when he plants a special seed in the garden of the house he has inherited
$2.99
PRICE
$2.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
1,116 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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
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.
JavaScript is required to complete mailbox verification.
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 Rusty Lake: Roots: map the core Games workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 random daily puzzles or timed challenges.
Assumption to check: Limited replayability after puzzles are solved
Validate with people who use this workflow before building.
Hypothesis 2
Add hint system with gradual hints or video tutorials.
Assumption to check: Some puzzles can be overly challenging
Validate with people who use this workflow before building.
Hypothesis 3
Implement social sharing options for achievements and scores.
Assumption to check: No social features to share progress
Validate with people who use this workflow before building.
Hypothesis 4
Regularly update game art and puzzles to keep content fresh.
Assumption to check: Static art may become repetitive
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
James Vanderboom's life drastically changes when he plants a special seed in the garden of the house he has inherited. Expand your bloodline by unlocking portraits in the tree of life. Rusty Lake: Roots is the second premium point-and-click adventure by Rusty Lake, the creators of the Cube Escape series and Rusty Lake Hotel. Features: - Pick-up-and-play: Easy to start but hard to put down. - Unique storyline: Experience the beginning and end of characters' lives and build your own family tree. - More than 33 levels: The biggest Rusty Lake game so far is filled with puzzles - Full of suspense and atmosphere: Switching from calm to very dark moments - Immersive soundtrack: Each level has its own theme song and variations - Achievements: The tree has more secrets to unravel Tap on the arrows, drag or swipe to navigate around the environment. Some objects you can drag. Interact with people and objects by tapping. Select found items in your inventory and tap somewhere on screen to use them. We will unfold the Rusty Lake story one step at a time. So check RustyLake.com every day for new content and follow us: @rustylakecom.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
react-navigation
react-native-gesture-handler
react-native-reanimated
TypeScript
BUILD KIT DIFFICULTY
Advanced
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.
