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.
App Overview
Strange - Chaos Distortion
STRANGE replaces the static waveshaper with living mathematics
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
5 ratings · Top 5%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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What's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Strange - Chaos Distortion: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Provide a wider range of unique effects and customizable options.
Assumption to check: Limited effects selection compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate social sharing to allow users to share their creations.
Assumption to check: No social sharing features.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to download tracks for offline listening.
Assumption to check: No offline playback support.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a more user-friendly approach to encourage purchases without disrupting the experience.
Assumption to check: In-app purchase prompts can be intrusive.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
STRANGE replaces the static waveshaper with living mathematics. Feed your signal into Lorenz and Logistic chaos systems — attractors that never repeat — and get distortion that breathes, shifts, and evolves. Drive the chaos harder and it warps deeper. Pull back and it colors. The curve is never the same twice. — DRIVE — How deep your signal enters the chaos system. From subtle coloring to full saturation. — CHAOS — Adjusts the density and intensity of the chaotic attractor. Turn it up for wild, unpredictable distortion. — FEEDBACK — Routes the output back into the chaos system. Adds resonance and self-oscillating character. — MODES — Four distortion characters: Fold (wavefolding), Shatter (quantized scatter), Warp (domain warp), Glitch (block displacement). — TONE — Post-distortion tonal shaping. Sculpt the frequency content after the chaos. — MIX — Dry/wet blend. Full wet for pure chaos, blended back for parallel processing. — OUTPUT — Final output level. Compensate for the gain added by drive and feedback. — AUv3 PLUGIN — Run STRANGE inside AUM, ApeMatrix, Audiobus, or any AUv3 host. Multiple instances, each with independent settings. — WORKS ON — iPhone and iPad, all modern screen sizes.
Written user reviews are not shown here. Check current App Store reviews >
Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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BUILD KIT DIFFICULTY
Advanced
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.
