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.
ExtraExtra is an RSS reader built to feel completely at home on whichever Apple device you're holding — genuinely native on iPhone, iPad, Mac, and Apple Vision Pro, not a stretched-out port.
$2.99
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Your first Build Kit is free with a verified email.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for ExtraExtra Rss: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
ExtraExtra is an RSS reader built to feel completely at home on whichever Apple device you're holding — genuinely native on iPhone, iPad, Mac, and Apple Vision Pro, not a stretched-out port. READING EXPERIENCE • Full-text extraction turns excerpt-only feeds into complete articles, automatically • On-device AI read-aloud — text is cleaned up to sound natural when spoken (URLs, footnotes, and symbols smoothed out; nothing summarized or dropped) • Adjustable fonts and reading size • Light and dark themes • In-article search, keyword muting, and full-text search across feeds • Save articles to read later; mark read/unread with swipe or keyboard shortcuts FEEDS, YOUR WAY • Connect any GReader-compatible sync service (FreshRSS, The Old Reader, and others) to sync read state and subscriptions across devices • Or sync privately with iCloud — no server or account required, your read and saved state just follows you across devices • Or skip the account entirely — local mode reads feeds directly, no server, no sign-up, nothing leaving your device • Import existing subscriptions via OPML, folders and all • Tap a feed link in Safari to subscribe directly, no copy-pasting URLs • Share any webpage to ExtraExtra and it'll find and add that site's feed automatically • Organize feeds into categories/folders with per-feed unread counts EVERYWHERE YOU ARE • One purchase covers iPhone, iPad, Mac, and Apple Vision Pro • Start an article on one device, pick it up on another with Handoff • Home Screen widgets keep unread counts visible at a glance • Siri Shortcuts and hardware media key support • Apple Watch companion app — remote control your iPhone right from your wrist • Full keyboard shortcut support on Mac and iPad ExtraExtra: extra, extra — read all about it, your way.
Written user reviews are not shown here. Check current App Store reviews >
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
Assumption to check: Limited customization options for feeds
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No offline reading capabilities
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of personalized recommendations
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
Not assessed in a Build Kit yet.
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.