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.
Ripplemaker: a West Coast Flavored (Semi-)Modular Synth
$8.99 · 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 Ripplemaker: 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 offline capabilities for music playback
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult to discover new music
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Occasional bugs during playback
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited 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.
Ripplemaker: a West Coast Flavored (Semi-)Modular Synth The freedom and versatility of a modular synth in a stylish mobile package. In typical West Coast fashion the available modules, such as complex oscillator, lowpass gate, FM, mathematical utilities and slope generator, are designed for exploration and experimentation. The virtual patch cables will let you take your sound wherever you want to take it, from morphing basslines to evolving generative drones. A modular playground Even if you’re not familiar with modulars, wavefolders or control voltage you can dive right in, because all modules are prewired; offering a powerful monosynth without using a single cable. Then whip out the virtual cables and start patching. Ripplemaker is designed for fun - big enough to lose yourself into, yet intuitive enough to not get lost. Standalone sequencer goodness Sometimes you want to get away from your DAW and just play. That’s why Ripplemaker, beside being an AU plugin, also comes with a standalone sequencer app that helps you get creative. It has a random pattern generator with scale locks, a realtime probability-based mutation engine and it syncs with your other apps and hardware via Ableton Link or MIDI Clock. Download the user manual on www.ruismaker.com Connectivity beyond cables: obviously in a modular synth it’s all about cables. But Ripplemaker takes connectivity to the another level: - AUv3 (Audio Unit Plugin) Extension for use in iOS DAWs - Universal design (works on iPad 4+, iPhone 5S+, iPod Touch 6G+) - CoreMIDI, Virtual MIDI, Bluetooth MIDI, - Audiobus 3, including AB3 MIDI IN+OUT and State Saving - Ableton Link - MIDI Clock Sync - WAV export, MIDI file export, AU preset export
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.