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.
Play instruments with your voice in real time! Voice Band introduces a revolutionary new way to make music - with only your voice
$2.99 · 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 Voice Band: 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 recording features compared to full DAWs.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be confusing for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Performance issues with larger projects.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of social sharing options.
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.
Play instruments with your voice in real time! Voice Band introduces a revolutionary new way to make music - with only your voice. Featured on G4TV’s Attack of the Show (with Olivia Munn). * Imagine creating an entire song with only your voice. * Just sing into your phone and hear Voice Band transform your voice into an instrument in real time. Voice Band doesn't simply alter your voice to sound like an instrument, it actually plays a real sampled instrument which follows what you sing. Want to jam to a guitar solo with your favorite band? Voice Band lets you play along with your ipod library, too. Voice Band features a recorder which lets you build a song, one instrument at a time. Auto pitch mode helps you stay on key, and if you're a musician, you'll appreciate the adjustable scale and metronome. Voice Band also includes a built-in effects processor with distortion, reverb, and delay. Whether you’re a musician looking to instantly capture an arrangement idea, or a music fan looking to make your own music for the first time, Voice Band will inspire and challenge you. Check out what others have to say: NYTimes: “Want to write music but you can’t play an instrument? Download Voice Band, sing the melodies and rhythms for different instruments, and the app creates the bass, guitar and drum tracks to your specs.” Gizmag: “Stunning multitrack rock band recordings using only your voice.” Tuaw.com: “I don't usually gush during App reviews … [but] VoiceBand is pretty marvelous.” Features • Turns your voice into an instrument, in real time. • Instruments include: 2 guitars, bass, sax, 2 synths, Drums, and a Mic mode • Built-in recorder allows you to record an entire song, one instrument at a time. • iPod player lets you play along with your favorite music. • Drum mode lets you play both kick and snare at the same time by singing at two different volumes. • Auto Pitch mode helps you to stay on key. • Adjustable octave • Effects include distortion, reverb and delay. • Adjustable musical scale for auto pitch includes Major, Minor, Blues, Pentatonic, Wholetone and Mixolydian. • Built-in metronome with adjustable tempo. • Songs can be saved, and e-mailed from within Voice Band. • Compatible with headphone and microphone accessories. NOTE: Like any musical instrument, Voice Band works better with practice. If you consider yourself non-musical you can still have lots of fun with Voice Band as you continue to expand your musical talent! For help in getting the most from Voice Band, check out our tutorial videos. Requirements • Quality headphones are recommended. • A quiet place to record, to avoid false instrument triggering from external noise. • Practice is required! As with any musical instrument, your results will improve dramatically as your skill develops. Links to quoted sources: Attack of the Show with Olivia Munn: http://youtu.be/E6cZIPAerWA http://www.nytimes.com/2010/01/28/technology/personaltech/28smart.html http://www.gizmag.com/voice-band-iphone-app/13876/ http://www.tuaw.com/2010/01/08/voiceband-personal-music-artistry-gone-wild/
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.