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
LED Display, Neon sign
LED Display, Neon sign, 응원도구
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.3
3 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.
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 included14 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 LED Display, Neon sign: map the core Lifestyle 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
Provide a wider variety of fonts and color palettes.
Assumption to check: Limited customization options for fonts and colors.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the navigation and provide onboarding tutorials.
Assumption to check: User interface can be confusing for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize app performance for lower-end devices.
Assumption to check: Inconsistent performance on older devices.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social media sharing and export features.
Assumption to check: Limited sharing options for created signs.
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
LED Display, Neon sign, 응원도구 Use flashing LED banners for meetings, driving, disco dance parties, confession venues and many other places. Feel free to show me any message you want 1. In a quiet place (meetings & classrooms) 2. In noisy places (party, club & bar) 3. At a dating place (excuses and apologies) 4. Promotional Information Release (Display Banner Ads and Announcements) 5. At the airport transportation service (LED scrolling & blinking) 6. From the concert to the lightboard (bouncing signal) 7. Display a message in the car (information that the oil cap is open or the tire pressure is low) 회의, 운전, 디스코 댄스 파티, 고백 장소 및 다른 여러 장소에서 깜빡이는 LED 배너를 사용해보세요. 언제라도 내가 원하는 메시지를 보여주세요: 1. 조용한 장소에서 ( 회의 & 교실에서 ) 2. 시끄러운 장소에서 ( 파티 , 클럽 & 바 ) 3. 데이트 장소에서 ( 변명 및 사과 ) 4. 프로모션 정보 출시 ( 배너광고 및 공고 표시 ) 5. 공항 운송서비스에서 ( LED 스크롤 & 깜빡임 ) 6. 콘서트에서 라이트보드로 ( 튀는 신호 ) 7. 차 안에서 메시지 보여주기 （주유 뚜껑이 열려있다거나 타이어 공기압이 낮다는 것을 알려주기 ）
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
Supabase
@react-navigation/native
react-native-color-picker
zustand
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.
