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.
Introducing the all-new Steel Guitar 2.0 — built COMPLETELY from scratch with bigger tone, more soul, and better features than ever!
$0.99 · 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 Steel Guitar: 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 sound options and in-app purchases may frustrate users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be confusing for beginners
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Recording functionality can be buggy
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of social sharing features
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.
Introducing the all-new Steel Guitar 2.0 — built COMPLETELY from scratch with bigger tone, more soul, and better features than ever! Combining a large collection of unique guitars, all-new realtime effects and amps processing, and a playing surface more expressive than ever, Steel Guitar is easily the most realistic sounding guitar on iOS. For unprecedented control over your tone, expand to 10 unique guitars, 8 iconic virtual-tube amps, and 16 classic effects! Build up your signal chain any way you want, thanks to a simple drag-and-drop interface that accommodates all your amps & FX connections, in any order. Steel Guitar’s axes range from 6-string electrics to acoustic, 12-string, and to even 8- and 10-string pedals steels. Amps include all the important models of the last 60 years — each one complete with channel switching, adjustable gain, and EQ. The effects include painstakingly designed virtual-analog overdrives, fuzzes, wah, tape delay, reverbs, and more! With the PRO Pack or The Whole Enchilada, gain access to Steel Guitar’s powerful tapedeck complete with recording, looping audio copy/paste and a plethora of other sharing options; or harness Steel Guitar’s powerful, user-friendly MIDI Learn to control your effects, amps and guitar parameters! Use MIDI or the accelerometer to control string-bending pedals for authentic pedal steel sounds — and you can easily configure pedal-to-string assignments via the built-in copedent matrix. Steel Guitar 2.0 is fully connected, too. With Inter-App Audio and Audiobus available out-of-the box, connect Steel Guitar to your favorite iOS DAW and jam away! Whether you’re after the soulful ring of acoustic blues, the mean and dirty crunch of Rock, or dreamy bell-like tones of a pedal steel, Steel Guitar has got your covered. • Expand to 10 unique guitars, 8 amps and 16 effects • Real time FX & Amps processing • Fully configurable FX & Amps Signal Chain • Virtual-Tube amps including classic American and British models • Virtual-Analog effects: multiple overdrives & fuzzes, reverbs, mods, tape delay & more • All new, easy-to-use guitar interface • Configurable note-snapping, normal & damped sustain • Bar slanting & string dampening gestures • String bending via MIDI or accelerometer-controlled virtual “pedals” • Fully controllable copedent (string-bending pedal map) • Inter App Audio & Audiobus • MIDI Learn & Program Changes* • Tapedeck with recording, audio copy/paste, looping and lots of other import/export options* • Save unlimited presets; import/export presets and folders • Metronome with tap tempo • Left-handed mode *Included with PRO Pack or The Whole Enchilada
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.