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.
Sonority configures your speakers in ways the standard controller app doesn’t allow — using only the local network connection on your home Wi-Fi
$1.49 · 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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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 Sonority for Sonos: map the core Music 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 offline functionality for music playback.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult device management for multiple Sonos speakers.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social sharing features.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No user feedback mechanisms for app issues.
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.
Sonority configures your speakers in ways the standard controller app doesn’t allow — using only the local network connection on your home Wi-Fi. It does no audio processing of its own; all the sound comes from your real speakers. The configurations it creates are standard, supported speaker bondings — just ones the official app chooses not to expose. WHAT YOU CAN DO • Dedicated front speakers on a soundbar — add a discrete left/right pair so your bar becomes the center channel, for a true three-speaker front stage. • Build a complete home theater in one guided flow — fronts, rear surrounds and one or two subs, each optional. • Use a single amplifier to drive both passive front speakers. • Speaker groups the standard app won’t make — full-range zones of 2–16 speakers, stereo pairs (including mismatched models), or a custom per-speaker left/right/both layout, each with an optional sub. • Config profiles — snapshot your whole layout and rebuild it in one tap after moving speakers around. Each profile gets its own icon and colour, reorders with a drag, and opens a per-entity detail view showing exactly what it saved. A profile can also capture and restore per-speaker audio settings (bass, treble, loudness, night sound, speech enhancement, sub and surround levels, lip-sync) and, optionally, volume. • Apply a profile without opening the app — from a home-screen widget (small, medium or large) or a long-press on the app icon. • Rename rooms, identify which physical speaker is which by blinking its status light (or a short chime on iPhone/iPad) — right from a room or a bonded speaker — and toggle a speaker’s room-calibration tuning. • Diagnostics — a technical, hide-nothing view of your system when something isn’t working, which you can share with support or email to the developer to get help. • Works on iPhone, iPad and Mac, with a layout that adapts to the screen — a roomy side navigation and multi-column view on iPad and Mac, the familiar single column on phones. Every change is made over your local network, is shown to you before it’s applied, and is fully reversible from within the app. PRIVACY No account. No sign-in. No analytics, no tracking, and no data collected. Sonority talks only to the speakers on your own Wi-Fi network — nothing leaves your home. REQUIREMENTS Compatible speakers on the same Wi-Fi network as your device. Room-calibration tuning, where supported, is measured in the manufacturer’s own app; Sonority only switches an existing tuning on or off. — Sonority is an independent app and is not affiliated with, authorized, maintained, sponsored, or endorsed by Sonos, Inc. “Sonos” is a trademark of Sonos, Inc., used here only to describe compatibility.
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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.