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
Medium: Read & Write Stories
Welcome to Medium, your home for human stories, useful advice, and inspiring insights
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
157,506 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 included18 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 Medium: Read & Write Stories: map the core News workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Welcome to Medium, your home for human stories, useful advice, and inspiring insights. Immerse yourself in a world of wisdom with writing from renowned figures, passionate experts, and fresh voices. Make reading and writing a daily ritual by following your fascinations, discovering new rabbit holes, and reaching readers of your own. Medium is simple social publishing for everyone. + Find your focus with distraction-free reading about everything from taking better pictures to what it’s like to scale a startup. + Stay current with stories about emerging technology, culture, and firsthand accounts of front-page news. + Become a member for unlimited access to millions of stories from our global community of the curious. + Assemble your own personal library by highlighting passages, bookmarking stories, and following writers who share your passions. + Join a community of readers, writers, and thinkers who clap for what they love, respond with insightful comments on thought-provoking stories, and collaborate to create popular publications. + Reach a wider audience by publishing your stories on a platform that serves more than 100M idea-loving people. + Establish a professional presence on a trusted platform, alongside academics, leaders, and experts. + Join the Medium Partner Program to earn money from your writing. + Enjoy a continuous reading experience across your iPhone, iPad, and desktop. + Listen to audio versions of any story on Medium (Member feature). __ Medium Terms of Service: https://policy.medium.com/medium-terms-of-service-9db0094a1e0f Privacy Policy: https://policy.medium.com/medium-privacy-policy-f03bf92035c9 Support: https://help.medium.com
Written user reviews are not shown here. Check current App Store reviews >
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 search and filtering options.
Assumption to check: Difficulty in finding specific articles or topics.
Validate with people who use this workflow before building.
Hypothesis 2
Add a robust offline reading feature.
Assumption to check: Limited offline reading functionality.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce competitive pricing tiers and promotional offers.
Assumption to check: High subscription costs for premium content.
Validate with people who use this workflow before building.
Hypothesis 4
Create personalized content recommendations based on user behavior.
Assumption to check: Overwhelming amount of content can be hard to navigate.
Validate with people who use this workflow before building.
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
Zustand
React Navigation
Axios
BUILD KIT DIFFICULTY
Expert
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.
