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
PorTran
PorTran - Your Personal Life Archaeology
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
678 ratings · Top 5%
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 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 PorTran: map the core Education 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 robust offline access and download options for lessons.
Assumption to check: Limited offline functionality for courses
Validate with people who use this workflow before building.
Hypothesis 2
Streamline UI for better navigation and focus.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Introduce adaptive learning paths based on user performance.
Assumption to check: Lack of personalized learning paths
Validate with people who use this workflow before building.
Hypothesis 4
Enhance quiz feedback with detailed explanations and resources.
Assumption to check: Feedback on quizzes can be minimal
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
PorTran - Your Personal Life Archaeology Discover the archaeologist within you! PorTran transforms your daily life into an exciting archaeological expedition where every moment, memory, and meaningful object becomes a precious artifact waiting to be discovered and preserved. Become a Life Archaeologist Just as archaeologists uncover and document historical treasures, you can excavate the treasures of your own life. From cherished photographs and meaningful conversations to special objects and memorable experiences - every piece of your personal history deserves to be carefully catalogued and preserved. Key Features: - Artifact Collection: Document your life's precious moments with rich media support - Personal Excavation: Discover and rediscover forgotten memories through intelligent search - Timeline Archaeology: Explore your personal history through beautiful timeline views - Memory Vault: Securely store your life artifacts with complete privacy - Archaeological Insights: Gain fascinating perspectives on your life patterns and memories - Offline Preservation: All your discoveries remain safely stored on your device Why Choose PorTran? - Complete Privacy - Your personal archaeological site stays entirely on your device - Rich Documentation - Capture memories with photos, text, and detailed descriptions - Intelligent Organization - Advanced search and categorization for easy rediscovery - Beautiful Interface - Enjoy a clean, intuitive design that makes memory keeping delightful - No Subscriptions - One-time purchase for lifetime access to your personal archaeology tools Start your personal archaeology journey today. Every life has stories worth preserving - what treasures will you uncover in yours? Download PorTran and begin excavating the extraordinary artifacts of your everyday life.
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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
Zustand
Axios
React Navigation
expo-video
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.
