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
Blue Clipper
Converter-style clipping and saturation for louder, denser, more controlled mixes.
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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 Blue Clipper: 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
Include social features to allow users to share their projects.
Assumption to check: Lack of user engagement features like social sharing
Validate with people who use this workflow before building.
Hypothesis 2
Expand the library of audio effects and allow user-generated effects.
Assumption to check: Limited audio effects compared to competitors
Validate with people who use this workflow before building.
Hypothesis 3
Implement an interactive tutorial to guide new users through features.
Assumption to check: No tutorial or onboarding experience
Validate with people who use this workflow before building.
Hypothesis 4
Highlight premium features and provide a free trial to demonstrate value.
Assumption to check: Subscription may not be attractive without clear benefits
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
Converter-style clipping and saturation for louder, denser, more controlled mixes. Blue Clipper is modeled on the Lavry Blue 4496*, capturing the character of its saturation and clipping behavior in a simple, modern plug-in format It is designed to add density, control peaks, and increase perceived loudness while keeping the sound focused, musical, and mix-ready. ANALOG SATURATION Analog Saturation gently softens transient peaks before they hit the clipper, adding density and level control while keeping the sound natural and musical. Perfect for drums, bass, vocals, buses, and full mixes when you want extra loudness without obvious distortion. DIGITAL SATURATION Digital Saturation drives the signal into a stronger saturation curve, adding harmonic color, firmness, and perceived loudness. Use it when you want drums to hit harder, bass to feel thicker, synths and guitars to cut through, or a mix to sound more pushed and energetic. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect *Legal Disclaimer Lavry, Lavry Blue, and any related product names, logos, or trademarks are the property of their respective owners. Blue Clipper is an independent Nembrini Audio product and is not affiliated with, endorsed, sponsored, or licensed by Lavry Engineering or any related company. Any reference to the Lavry Blue 4496 is used only to describe the sonic inspiration and reference hardware used in the development of the plug-in.
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
Zustand
React Navigation
expo-av
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.
