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
Dumb Ways to Die
You've seen the video - now the lives of those charmingly dumb characters are in your hands.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.2
25,322 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.
Build your own version
Build Kit
Make this idea yours
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 Dumb Ways to Die: 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 new games regularly to keep content fresh.
Assumption to check: Some mini-games can feel repetitive over time.
Validate with people who use this workflow before building.
Hypothesis 2
Add more social sharing options and challenges.
Assumption to check: Limited social features for sharing scores.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the purchase flow and make pricing clearer.
Assumption to check: In-app purchases can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Implement rewarded ads that enhance rather than interrupt play.
Assumption to check: Ads can disrupt gameplay.
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
You've seen the video - now the lives of those charmingly dumb characters are in your hands. Enjoy 82 hilarious mini-games as you attempt to collect all the charmingly dumb characters for your train station, achieve high scores and unlock the famous music video that started it all. Download the FREE game now to enjoy the new fun and remember, be safe around trains. A message from Metro. GAMEPLAY - Why is his hair on fire? Who cares, just RUN! - Quickly wipe your screen free of puke - Balance that wobbling glue eater - Flick the piranhas out of range of those precious private parts - Swat wasps before it's too late - Best not invite that psycho killer inside - Carefully remove forks from toasters - Help self-taught pilots - Get back from the edge of the platform you fools - Have patience at level crossings - No crossing the tracks! Not even for balloons! - And who knew rattlesnakes were so picky about mustard? Plus loads more! PLUS - Perfect your dumb-death prevention skills to unlock the full set of characters for your train station - Earn your own local copy of the original video - Create your own Dumb Ways character from loads of facial features, accessories and more! Watch the original Webby and Cannes award-winning video here: www.youtube.com/watch?v=IJNR2EpS0jw
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.
SUGGESTED BUILD STACK
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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.
