App Overview

CardCap: Card Show Budget icon

CardCap: Card Show Budget

Kyle Sustich · Finance

CardCap keeps your card show spending in check.

$0.99

PRICE
$0.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 ratings · Top 5%

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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What's included

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.

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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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

CardCap keeps your card show spending in check. Set a cap before you walk in, then log every card you buy or sell. Your cap counts down with each purchase, and CardCap warns you before a card takes you over it. When the show's done, you get a receipt-style summary of everything you bought and sold. SET YOUR CAP • Pick the most you want to spend at each show, or track without a budget • Raise or lower your cap anytime • A heads-up before any purchase that blows your cap LOG EVERY CARD • Card name, vendor, price, and condition: raw, graded (with company and grade), or sealed • Group cards bought together from one vendor • Log sales and trades; money in goes right back under your cap • Snap a photo of each card, cropped to the card's shape LOOK BACK • A printed-style receipt for every show • Past shows with your total spent and how often you stayed under • Every card you've bought or sold, searchable with filters • A wishlist with the most you'll pay for each card YOUR DATA STAYS YOURS • Syncs privately through your own iCloud, so it comes back on a new iPhone • Export a backup file anytime • No accounts, no ads, no tracking

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

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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
BUILD KIT DIFFICULTY

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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.