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
BoomBar
Stop carrying dozens of loyalty and reward cards around ! Get BoomBar
$0.99
PRICE
$0.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.2
4 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.
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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/
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 BoomBar: map the core Shopping 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
Expand product range and add more categories.
Assumption to check: Limited product variety and categories
Validate with people who use this workflow before building.
Hypothesis 2
Thorough testing and QA to improve stability.
Assumption to check: Poor user ratings due to bugs
Validate with people who use this workflow before building.
Hypothesis 3
Implement machine learning for personalized product suggestions.
Assumption to check: Lack of personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 4
Redesign navigation and enhance search functionality with filters.
Assumption to check: Difficult navigation and search features
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
Stop carrying dozens of loyalty and reward cards around ! Get BoomBar 3 Easy Steps Scan , Save and Use with your iPhone, Apple Watch and iMessage. About BoomBar : BoomBar is a forward thinking application aim to record barcodes / qr-codes from various cards used in people's daily life and save them into different categories, so that users can use their cards by presenting the barcode/qr-code from their iPhone, iPod touch, Apple Watch or iMessage. BoomBar with the user permission, can backup all the saved cards to user's personal iCloud Drive, which means BoomBar’s creators and a third party do not have access to any data uploaded by the users, which ensures users' information 100% private and secure. With the release of Apple Watch and the spread of iPhone and iPod touch, who still wants to carry a heavy wallet everywhere? BoomBar adopts advanced technology and concept, provides a user-friendly interface, easy to learn and use. With BoomBar, your smart lifestyle is only a few click away!!! Features: * No Ads * Share your saved cards with family or friends via iMessage * Backup your cards to your iCloud Drive * Choose blue, pink or green to be your home screen icon colour. * Support for Face ID and Touch ID * Supports Barcodes and QR-Codes * No third-party backup of your cards data * No tracking of your usage of products and cards * Supports iPhone , iPod touch and Apple Watch
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
Axios
React Navigation
React Native Reanimated
TypeScript
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.
