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
Developer Browser Pro
Developer Browser is a focused web viewer designed for inspection and troubleshooting.
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 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/
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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 Developer Browser Pro: map the core Developer Tools 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
Implement advanced filtering and categorization features.
Assumption to check: Limited tool discovery options
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to save favorite tools and customize the layout.
Assumption to check: Lack of user customization
Validate with people who use this workflow before building.
Hypothesis 3
Introduce caching for tools and recent activities.
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Hypothesis 4
Add a rating/review system for tools.
Assumption to check: Absence of user feedback mechanism
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
Developer Browser is a focused web viewer designed for inspection and troubleshooting. Load any URL (or search from the address bar) and review what the page returns and what it does at runtime. Features:. Response headers at a glance. Capture the latest HTTP status, MIME type, and full header list. Console stream. View console output plus JavaScript errors and unhandled promise rejections with timestamps. DOM snapshot + search. Capture a structured DOM tree with tag, id/class hints, text preview, and a searchable path. Page source. Read and copy the rendered document HTML in a monospaced view. Audit deck. Quick structural and accessibility signals (headings, buttons, landmarks, language, unlabeled links, missing alt/labels) plus basic timing info. Cookies for the current host. See cookie name, value preview, domain/path, secure/session flags, and expiration. Session timeline. Keep a running list of captured responses as you browse. Use it for debugging, QA checks, and lightweight page reviews without leaving your browsing context.
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
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expo-secure-store
react-native-async-storage
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.
