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.
a complete middle eastern percussion ensemble in your hands including more than 300 rhythms from egypt, morocco, iran, persia, iran, turkey, greece..
$17.99 · 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 Mid East Drummer - Percussion: 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 instrument variety compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: High one-time purchase cost
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community or collaborative 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.
a complete middle eastern percussion ensemble in your hands including more than 300 rhythms from egypt, morocco, iran, persia, iran, turkey, greece... with meticulously treated sounds creating the most realistic percussion world. middle east grooves are the one greatest rhythmic richness, with a large number of different measures. from the common 4 / 4 time to the most interesting and exotic asymmetrical rhythms, like 7/8, 5/8, 15 / 16, 11/ 16 ... multilayered sounds with round robin samples. bendir, darbuka, riq, dahola, davul, tar, tarija ... - the jam function improvise like human percussionist. just set the level of variations and fills and play. - song mode. create song structures in seconds. - midi out / in - midi sync - 4 effects to combine, including compressor/gate, equalizer, delay and reverb. - random generators to get creative ideas instantly. - ableton link sync - inter-app audio - control several parameters with midi control change and program change. --- midi control - notes mode play / stop - midi note g2 / program change 13 midi cc 0: rhythm midi cc 7: master volume midi cc 11: swing midi cc 32: bank midi cc 91: reverb gain select soundset: program change (notes live pad mode) --- live pad midi controls: * program change mode (default setting) pc 0 to pc7 : select pad pc8: fill pc12: fill for the next pad change pc10: fill for every pad change pc11: fill & start / end pc13: play * notes mode (default setting) c3 to g3 : select pad c2: fill d2: fill for the next pad change e2: fill for every pad change a2: fill & start / end. - song mode controls: (notes live pad mode) midi note c2: preview song midi note d2: next song * double press to edit a part or song * long press to move parts or songs
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.