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
NFL Collect by Topps®
NFL Collect by Topps is the officially licensed digital collectibles app of the National Football League and NFLPA! Join a passionate community of football fans from around the world that enjoy collecting & trading To...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
1,044 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's included18 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 NFL Collect by Topps®: map the core Sports workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
NFL Collect by Topps is the officially licensed digital collectibles app of the National Football League and NFLPA! Join a passionate community of football fans from around the world that enjoy collecting & trading Topps NFL cards, bringing their collections to life with fun, interactive in-app features! Set lineups using Topps football cards in your collection that score in real-time! NFL Collect returns as the premiere trading card destination to collect favorite players, iconic moments, original art, classic Topps designs and more – all from your mobile device. NFL Collect by Topps offers the perfect orientation for collectors of all experiences and skill levels, offering a chance to connect and trade with football fans around the world, combine cards to craft into rarer ones, and rip digital packs for chances to win physical Topps NFL hobby product including hobby boxes, full cases, high-value graded football cards and more! Exciting world of football card collecting! • Rip packs of NFL digital trading cards daily • Claim FREE daily bonus cards & coins • Trade with football fans around the world • Complete events for exclusive Topps NFL cards • Join Seasons to complete in-app journeys • New "Cases" – open & choose 8 possible rewards! • Connect with Topps football card collectors Bring your Topps card collection to life! • Complete Missions to unlock unique content • Play your Topps cards in Contests to win prizes • Combine cards to craft into rarer ones • Track & complete sets to earn collectable awards • Win physical Topps hobby boxes via Challenges Customize your NFL Collect profile! • Showcase your favorite Topps NFL football cards • Choose & earn new NFL profile avatars ----- MORE INFO: For the best experience, we recommend iOS 18.0 or later. For the latest NFL Collect news: - Twitter: @ToppsDigital - Instagram @ToppsDigital - Facebook: @ToppsDigital - Newsletter: play.toppsapps.com/app/nfl-collect Collect football player cards from all 32 NFL teams: ARIZONA CARDINALS ATLANTA FALCONS BALTIMORE RAVENS BUFFALO BILLS CAROLINA PANTHERS CHICAGO BEARS CINCINNATI BENGALS CLEVELAND BROWNS DALLAS COWBOYS DENVER BRONCOS DETROIT LIONS GREEN BAY PACKERS HOUSTON TEXANS INDIANAPOLIS COLTS JACKSONVILLE JAGUARS KANSAS CITY CHIEFS LAS VEGAS RAIDERS LOS ANGELES CHARGERS LOS ANGELES RAMS MIAMI DOLPHINS MINNESOTA VIKINGS NEW ENGLAND PATRIOTS NEW ORLEANS SAINTS NEW YORK GIANTS NEW YORK JETS PHILADELPHIA EAGLES PITTSBURGH STEELERS SAN FRANCISCO 49ERS SEATTLE SEAHAWKS TAMPA BAY BUCCANEERS TENNESSEE TITANS WASHINGTON REDSKINS
Written user reviews are not shown here. Check current App Store reviews >
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 daily challenges or events to earn exclusive cards.
Assumption to check: Limited card availability can frustrate users.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify trade workflows with guided prompts.
Assumption to check: Trade system can be complex and confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize image loading and caching strategies.
Assumption to check: Performance issues with loading large collections.
Validate with people who use this workflow before building.
Hypothesis 4
Add social features for users to connect and discuss trades.
Assumption to check: Lack of social features like chat or community.
Validate with people who use this workflow before building.
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
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BUILD KIT DIFFICULTY
Expert
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.
