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
123Play Pro
*** PRO VERSION ***
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.7
77 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/
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 123Play Pro: 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
Focus on exclusive content and partnerships with creators.
Assumption to check: Limited content availability and selection.
Validate with people who use this workflow before building.
Hypothesis 2
Implement adaptive bitrate streaming for better user experience.
Assumption to check: Inconsistent streaming quality.
Validate with people who use this workflow before building.
Hypothesis 3
Add social features for interaction among users.
Assumption to check: Lack of user engagement features like comments or ratings.
Validate with people who use this workflow before building.
Hypothesis 4
Create a clearer subscription management interface.
Assumption to check: Difficulties in managing subscriptions and payments.
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
*** PRO VERSION *** In this pro version of 123Play ads are 100 % removed and a new feature is added: Favourites. Save your favourite movie or your favourite movie actor. Keep yourself up-to-date on what's new out there in the movie universe! The app is a guidance to the Itunes Store so the movies and tv-shows you like are easy to find on Itunes Store just on a click of a button. Among other things it gives you an overview of which movies are currently playing in theaters and which ones are the most popular ones. 123Play has something for everyone. There is an explore section with all genres and a search function to search for any movie, TV series or actor. Get the latest information about the movie you like or your favorite movie actor. How does 123Play work? - 123Play keeps getting more facts about TV series and movies directly from the 3rd party TMDb service. General features: - Top rated movies - Upcoming movies - Now playing movies - Popular movies - Popular TV shows - Top rated TV shows - On the air TV shows - Airing today TV shows - Popular people *** PRO VERSION ONLY *** - Favourite movies - Watched movies - Favourite cast or crew So why wait? Get it now!
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
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BUILD KIT DIFFICULTY
Intermediate
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.
