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
QuickLoops Pro
QuickLoops Pro is a live looper for vinyl DJs who want fast loop capture and performance on iPhone and iPad.
$29.99 · In-app purchases
PRICE
$29.99
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's included16 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 QuickLoops Pro: 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
Implement a tutorial or guided onboarding process.
Assumption to check: Users may find it difficult to create loops without guidance.
Validate with people who use this workflow before building.
Hypothesis 2
Offer a wider variety of sounds and loops.
Assumption to check: Limited sound options may frustrate users.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a folder system or tagging for loops.
Assumption to check: Poor organization in the library can lead to difficulty in finding loops.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a freemium model with in-app purchases.
Assumption to check: High price point for initial purchase.
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
QuickLoops Pro is a live looper for vinyl DJs who want fast loop capture and performance on iPhone and iPad. Capture audio into two decks with 8 slots each, then trigger, restart, halve, double, match, and layer loops in real time. In Poly mode, loops stay locked to the deck master so layered performances stay tight and musical. QuickLoops Pro is built for live use: fast slot-based recording, BPM and bar display, loop speed control from 0.5x to 2.0x, Echo and Reverb on the loop bus, MIDI Learn for hardware mapping, and saved profiles so your preferred audio, MIDI, routing, and FX setup is ready when you are. Features include: - Dual-deck looper with 16 total slots - Fast tap workflow: record, loop, restart - Mono and Poly playback modes - Stop, Clear, Undo, Match, halve, and double controls - Playback speed control with BPM and bar or note feedback - Echo and Reverb with per-deck send - MIDI Learn for slots, transport, speed, loop length, and FX send - Saved profiles for audio, MIDI, routing, and FX recall - Per-deck input/output routing and loop bus level control QuickLoops Pro is designed for supported USB audio workflows on iOS. For the best dual-deck experience, connect compatible external audio hardware.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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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.
