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
DeckFilter
DeckFilter helps Steam Deck players choose what to play next from the Steam games they already own.
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
87 ratings · Top 15%
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 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 DeckFilter: 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 additional filtering features and customization.
Assumption to check: Limited filter options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Optimize data handling and loading times.
Assumption to check: Occasional performance lags with large datasets
Validate with people who use this workflow before building.
Hypothesis 3
Include onboarding tutorials or tooltips for better user experience.
Assumption to check: Lack of user guidance for new features
Validate with people who use this workflow before building.
Hypothesis 4
Integrate sharing capabilities for user-generated content.
Assumption to check: Limited social sharing options
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
DeckFilter helps Steam Deck players choose what to play next from the Steam games they already own. Sync your Steam library and wishlist, then turn a crowded backlog into a short list for tonight. Filter by Deck Verified status, SteamOS compatibility, ProtonDB tier, controller support, Steam reviews, tags, time-to-beat estimates, playtime, supported languages, achievement progress, prices, discounts, and skipped or unavailable items. Use DeckFilter to: - Find games that match your time, mood, language, and input preferences - Compare Deck readiness, ProtonDB, Steam reviews, playtime, and community signals before launching - Sort wishlist games by price, discount, release date, reviews, playtime, and Deck readiness - Open SteamDeckHQ, ShareDeck, and DeckVerifiedGames reports from game details - Save games with bookmarks and bookmark lists so your next picks are easy to revisit - Browse Discover, featured creator playlists, recently played games, and Steam Store search results - Keep skipped, unavailable, delisted, and country-restricted Steam items easier to manage DeckFilter is built for large Steam libraries, long wishlists, and players who already check several sites before choosing a game. It brings the decision signals together so you spend less time comparing tabs and more time playing. DeckFilter is an independent companion for Steam Deck players and is not affiliated with Valve or Steam.
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 Navigation
React Native Elements
@react-native-async-storage/async-storage
React Native Slider
Redux
Expo
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.
