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.
Readio turns the articles you read into audio you can listen to - like building a personal podcast feed from anything on the web
$4.99 · In-app purchases
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.
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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 Readio - Listen to the web: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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 accessibility for visually impaired users.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent audio playback quality.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of offline functionality for saved articles.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Not user-friendly for first-time users.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Readio turns the articles you read into audio you can listen to - like building a personal podcast feed from anything on the web. Share a link from Safari, paste a URL, or subscribe to an RSS feed, and Readio handles the rest. Built entirely on-device. Runs on iPhone, iPad, and Apple Silicon Mac. No accounts. No tracking. No subscription. One price, yours forever. LISTEN ANYWHERE - High-quality on-device text-to-speech, no cloud service required - Pitch-preserving 0.5x-2x playback - no chipmunk effect at high speeds - Picks the best Siri voice installed on your device, with a full voice picker - Skip forward / back, jump by paragraph, scrub the timeline - Resumes exactly where you left off, even across reboots - Sleep timer with "stop at end of article" mode WORKS WITH YOUR LIFE - CarPlay support with pre-rendered audio files for stutter-free highway driving - articles render to disk in the background so wireless playback runs from a real audio file, not live synthesis - Lock screen and Control Center playback controls - accurate across auto-play transitions - Bluetooth, AirPods, and car-stereo controls all wired up - Background audio that survives phone calls without auto-resuming after them - Share extension - send any URL from any app straight into your queue A PLAYER THAT FEELS RIGHT - Tap the mini player and the artwork flies up into the full player with a matched-geometry morph - Drag down to dismiss - same rubber-band feel as system sheets - Twelve accent palettes - Coral, Ember, Ocean, Forest, Indigo, Midnight, Sunset, Sage, Plum, Slate, Crimson, Mocha - iOS 26 Liquid Glass chrome on chips, buttons, and floating banners - matches the visual register of Music, Settings, and Control Center CLEAN READER VIEW - Distraction-free reading with five themes: Auto, Light, Sepia, Dark, Black - Eight reading-optimized fonts including New York, Iowan, Charter, Palatino - Adjustable text size, line spacing, and brightness - Drop-cap opener, wider column on iPad, and a live "X min left" pill - Tap any image to zoom full-screen - Read and listen interchangeably - your position syncs across both modes - When reading from a playlist, the next article appears at the bottom - tap to keep going - Pre-warmed reader instances open instantly with no dark-mode flash KEEP THE WHOLE PAGE - Save full-page snapshots of the original article - code blocks, images, and layout intact - Available offline once captured, viewable any time from inside the article - Per-article default view, or turn it on globally for everything you import - Stays on the device that captured it - no iCloud bloat ORGANIZE - Playlists with custom gradients and SF Symbol icons - Drag-to-reorder queue with swipe-to-remove - Distinct, stable cover colors for articles without a hero image, with brand-correct gradients for known platforms (Reddit, Instagram, YouTube, Spotify, Substack, X, Bluesky and more) - Auto-archive completed articles - they stop appearing in Up Next, the queue, and auto-play, but stay restorable from Archive any time - Search and sort across your library - iCloud sync across your iPhone and iPad - no extra setup RSS FEEDS - Subscribe to any feed - articles import automatically and are ready to listen - Smart deduplication so the same article never queues twice - Background sync, gentle on your battery and data - "Restored from Archive" indicator when a re-shared article is already in your library PRIVATE BY DESIGN - Articles fetched directly from the source over HTTPS - Nothing leaves your device except the article URL itself - No analytics, no telemetry, no third-party SDKs - One-time payment - no subscription, no ads, ever REQUIRES iOS 17 OR LATER. Designed for iPhone and iPad. Compatible with Apple Silicon Mac.
Written user reviews are not shown here. Check current App Store reviews >
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.
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.