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.
Sight-reading skills open the door to reading written music and familiarizing yourself with various music styles
$1.99 · 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 Guitar Sight Reading Trainer: 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 lesson variety leading to user boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No offline access to lessons.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social features to connect with other users.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Difficult to track long-term progress effectively.
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.
Sight-reading skills open the door to reading written music and familiarizing yourself with various music styles. Sight-reading is not a daunting task, and with sufficient practice, anyone can develop this valuable skill. Our app is designed to help you quickly identify notes across every part of the fretboard, with a special focus on positional playing. By enhancing your sight-reading abilities, you'll find it easier to focus on other musical aspects like harmony and rhythm. Features: PRACTICE & TEST MODE - Four different modes of use: 1. Locate notes on the fretboard based on the notes in staff. 2. Locate notes on the fretboard based on note name and pitch. 3. Find the names of notes on the staff (without the fretboard) 4. Identify the names of notes presented on the fretboard. - Automatic detection of problematic notes. KEY SIGNATURES & SCALES - Key signature support, from 1 to 6 sharps or 1 to 6 flats. - Automatic selection of the enharmonic notes for each scale to prevent double sharps or double flats in the key signature. - Scales include major, minor, melodic minor, harmonic minor, blues, pentatonic, and all modal scales. FRETS, STRINGS & NOTE SELECTION - Frets are grouped to limit the number of notes to practice and test. - Predefined fret groups, e.g., 0-3, 4-6, 7-9, 10-12, 0-12, 13-17, etc. - You can define custom fret groups. - The highlighted fret group is displayed on the fretboard. - Your sight-reading progress is tracked per fret group. - The longest streak record per fret group measures your sight-reading accuracy. - You can select specific strings for the highlighted area. - Test notes can be limited to naturals or notes from a selected scale. READ AHEAD - Reading ahead is a crucial skill for effective sight-reading. - You can adjust the number of notes to read ahead. OTHER - More than 15 alternate guitar tunings e.g., drop D, NST (new standard tuning) and all fourths tuning. - Support for left-handed guitars. - Option to display the fretboard in perspective (in landscape mode). - A universal app compatible with iPhone, iPad, and iPod Touch. - Supports all screen sizes. - No ads or in-app purchases. - Dark mode support (iOS 13+). - Tested on iOS and iPadOS 26.
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.