App Overview

Guppy: TCG Deals & Restocks icon

Guppy: TCG Deals & Restocks

DropKit, Inc. · Shopping

Get the box

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
387 ratings · Top 30%

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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Combine features and design from your favorite apps.

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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.

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.

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

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Guppy: TCG Deals & Restocks: map the core Shopping 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

Get the box. Skip the scalper. Guppy is a buying club for collectors. You get member prices on sealed TCG and sports card boxes, live sightings from stores near you, and one place to hold and ship everything you buy. SUPPLY: MEMBER DEALS Sealed boxes below market price. We buy in bulk direct from suppliers in the US, Japan, and China and pass the savings on to members. - Join a batch in one tap - You’re charged when we place the order, not before - Priority drops on scarce boxes, allocated by published rules THE VAULT Your boxes land at our warehouse and wait for you. - Held free for 15 days - Ship boxes together in one package and pay less shipping - See what’s coming to you, what’s in your vault, and what’s still on its way to us LOCAL RADAR See what’s on shelves near you. • Live in-store stock at Dollar General, Walgreens, Microcenter and more, within 100 miles • Get alerted the moment a box hits a shelf nearby • Learn when your nearby stores usually restock ALERTS One feed for everything that matters: - Nearby sightings - Batch fills and order updates - Pokémon Center queue openings - Shipping and delivery BUILT FOR COLLECTORS One account per person. Prices set off the real market. Rules published up front. Guppy exists so real fans can get the boxes they want at a fair price. HOW IT WORKS 1) Browse the latest drops 2) Join a batch 3) We order when the batch fills 4) Your box goes to your vault 5) Ship when you’re ready Some features require a Guppy membership. Privacy Policy: https://guppy.so/legal/privacy-policy Terms of Use: https://guppy.so/legal/terms-of-service

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 advanced filters and sorting options for better user experience.

Assumption to check: Limited filtering options for collections

Validate with people who use this workflow before building.

Hypothesis 2

Add features that allow users to share their collections on social media.

Assumption to check: No social sharing features

Validate with people who use this workflow before building.

Hypothesis 3

Optimize images and implement lazy loading for better performance.

Assumption to check: Occasional slow loading times for images

Validate with people who use this workflow before building.

Hypothesis 4

Allow users to add detailed descriptions for each collection item.

Assumption to check: Lack of detailed product descriptions

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.

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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.