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
UnPlay
UnPlay is a clock and DLNA receiver app that offers users a variety of scene-based experiences
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.9
18 ratings · Top 50%
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 included17 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 UnPlay: map the core Entertainment 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 personalized recommendations and better search algorithms.
Assumption to check: Limited content discovery features compared to other audio apps.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate adaptive bitrate streaming for improved performance.
Assumption to check: Inconsistent playback quality.
Validate with people who use this workflow before building.
Hypothesis 3
Enable offline playback for downloaded audio files.
Assumption to check: No offline access to downloaded content.
Validate with people who use this workflow before building.
Hypothesis 4
Focus on a more visually appealing and user-friendly design.
Assumption to check: User interface lacks polish and modern aesthetics.
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
UnPlay is a clock and DLNA receiver app that offers users a variety of scene-based experiences. Different clock styles are specially designed for iPhone, with added scene sound effects to bring more fun to home life. Various app icon styles are available and can be switched at will. DLNA screen receiver 1. HTTP Push: Push videos from web pages and combine them into a playlist. 2. Support for next track (on-demand, live streams, songs) on HomePod and Tmall Genie — an essential feature for Apple TV. 3. Single-track loop playback (ideal for children's songs, music, and MV playback). 4. Player menu options (playback speed, audio track selection, subtitle track selection, screen flip, aspect ratio adjustment, playlist loop mode). 5. Video rotation (default, 90°, 180°, 270°). 6. Looping modes: continuous loop, single track loop, playlist loop. 7. Aspect ratio options (stretch to fill, fit to screen). 8. Support DLNA · Server · Log · Debug Clock 1. Switch between 24-hour and 12-hour formats. 2. Show or hide seconds. 3. Various clock styles: flip clock, minimalist clock, square clock, LED clock, vintage clock.
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
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Zustand
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.
