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.
SpeakerAngle is the first app that allows you to precisely measure and adjust speaker toe-in angles with your iPhone, iPad, or iPod Touch in order to get the most out of your audio system.
$0.99
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.
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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 SpeakerAngle: map the core Utilities 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 functionality for advanced users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Average user interface design
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent calibration results
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.
SpeakerAngle is the first app that allows you to precisely measure and adjust speaker toe-in angles with your iPhone, iPad, or iPod Touch in order to get the most out of your audio system. SpeakerAngle works with any speaker make or model, in stereo and surround sound systems. Plus it's easy and intuitive to use, with no need for WiFi or Internet connectivity. Key Features • Allows the accurate setting and matching of critical speaker angles for optimum sound quality. • As you adjust a speaker in the room, on-screen speaker icons move and continuously update to display the current speaker angle. • Onscreen number boxes change color to let you know when left and right speaker toe-in angles are identical. • Includes user guide that can be printed or shared. • Projects are automatically saved as you work and can be freely renamed and recalled. To use SpeakerAngle, simply create a stereo or surround sound project and name it. Then adjust your speakers so they are facing straight ahead. Place your iPhone, iPad, or iPod Touch on top of one of the speakers and press the corresponding onscreen icon, then rotate that speaker towards the listening position. As you do so, SpeakerAngle's onscreen display shows you the angle, using red-green color coding to guide you through a range of recommended angles. Next, do the same for the paired speaker in your system until its icon's number box becomes yellow in color, indicating that both speakers are identically angled. A handy onscreen Reset button allows you to start from scratch at any time and experiment with different toe-in angles. When you're ready to fine-tune your system, a menu option allows you to purchase our companion app, SpeakerPro, which allows you to take precise distance measurements and receive intelligent toe-in recommendations. Available on the App Store now!
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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.