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
pump.fun - speculate on trends
pump.fun is the funnest app to discover trends forming in seconds, and profit from your taste!
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.7
3,104 ratings · Top 15%
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/
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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 pump.fun - speculate on trends: map the core Entertainment 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 more interactive features like polls or reactions to boost user engagement.
Assumption to check: Limited engagement features for posts
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize their feed based on interests or follow specific topics.
Assumption to check: Lack of personalization options for users
Validate with people who use this workflow before building.
Hypothesis 3
Implement reporting and moderation features to improve content quality and user safety.
Assumption to check: Inadequate moderation tools for content
Validate with people who use this workflow before building.
Hypothesis 4
Enhance search and filter options to make it easier for users to find relevant topics.
Assumption to check: Poor discoverability of trending topics
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
pump.fun is the funnest app to discover trends forming in seconds, and profit from your taste! Find memecoins · Get live updates on a constant stream of breaking narratives! · See trending memes that people are buying and selling the most. Follow top callers · Find users with a track record of success! · Follow your friends and climb the leaderboard. Stay in control · Own your funds, PumpFun is a self-custodial wallet that only you have control over. · We cannot access or freeze your funds. Easy deposit and withdrawal · Easily deposit and withdraw your crypto where it is accessible at all times. DISCLOSURES · PumpFun is not an exchange and does not provide any investment advice. The content of this app is not and should not be considered investment advice and does not constitute any offer or solicitation to offer or recommendation of any product or service. · Memecoins are not assets and do not possess any intrinsic value and do not have any utility. Memecoins are for entertainment purposes only and should not be considered an investment, currency, or something of value. The price of memecoins can be extremely volatile and unpredictable. Price data in the app may be inaccurate or delayed. · Wallet services are provided by Privy.io. All transfers in or out of the wallet are made on the blockchain using the self-custodial wallet connected to your account. PumpFun is a visual interface to blockchain decentralized exchanges and does not endorse any cryptocurrencies.
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
React Native
Expo
Supabase
@react-navigation/native
axios
@supabase/supabase-js
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.
