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.
Discover how well you really know your music with SONGLESS.FM
Free
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 Songless.fm ~ Guess the Song!: map the core Games 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.
Discover how well you really know your music with SONGLESS.FM. Guess the song, explore genres you love, challenge yourself with different difficulty levels, and see how your instincts stack up round after round. SONGLESS.FM helps you test and sharpen your music recognition, one song at a time. SONGLESS.FM uses a growing song library with adjustable difficulty, so both casual listeners and true music experts get a real challenge. SONGLESS.FM is designed for casual players, music trivia fans, and anyone who wants to prove they know their songs. Highlights: GUESS THE SONG: Listen to a short clip and race to name the track before time runs out — a real test of how well you actually know your music. MULTIPLE GENRES: Play across a wide range of music genres and discover songs outside your usual playlist. DIFFICULTY LEVELS: Choose the challenge that fits you, from easy hits everyone knows to expert-level deep cuts. GROWING SONG LIBRARY: Unlock the full catalog to guess from, with new songs added over time to keep every round fresh. PLAY AT YOUR OWN PACE: Jump in for a quick round or keep playing genre after genre — SONGLESS.FM fits however you like to play. TRACK YOUR SCORE: See how many songs you get right and use every round to sharpen your ear. How to Use: Download SONGLESS.FM from the App Store. Choose a genre and a difficulty level that matches how you want to play. Listen to each song clip and guess the track as fast as you can. Unlock the full song library to keep playing and testing your music knowledge across every genre. Why Choose SONGLESS.FM? REAL SONGS, REAL CHALLENGE: Every round uses real music clips, not generic trivia questions, so the challenge always feels authentic. PLAY AT YOUR OWN LEVEL: Adjustable difficulty means SONGLESS.FM is fun whether you're a casual listener or a serious music fan. ALWAYS SOMETHING NEW: A growing library across genres keeps giving you fresh songs to guess. BUILT FOR MUSIC LOVERS: SONGLESS.FM is made for anyone who loves music and wants to prove it. Download SONGLESS.FM now and find out how well you really know your music. Stop wondering if you'd recognize the song after the first few notes — start guessing, and see how you rank across every genre and difficulty level. *A SUBSCRIPTION IS REQUIRED TO UNLOCK ALL SONGS, GENRES, AND DIFFICULTY LEVELS. The Terms of Use (EULA) can be found here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 variety of songs may become repetitive.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social features for friends.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No daily rewards to encourage engagement.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No tutorial for new users.
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.
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.