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
Amiibomb - NFC Tool for Amiibo
Write Amiibo files to NFC tags using Amiibomb!
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
75 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 included16 files
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.
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 Amiibomb - NFC Tool for Amiibo: map the core Utilities 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
Expand NFC writing capabilities to support more formats.
Assumption to check: Limited NFC tag writing options
Validate with people who use this workflow before building.
Hypothesis 2
Create a more organized layout, possibly with categories.
Assumption to check: Cluttered UI on My Amiibo screen
Validate with people who use this workflow before building.
Hypothesis 3
Implement iCloud sync and backup features.
Assumption to check: No backup or restore options for Amiibo data
Validate with people who use this workflow before building.
Hypothesis 4
Optimize performance to ensure smooth operation across all supported devices.
Assumption to check: Inconsistent performance on older devices
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
Write Amiibo files to NFC tags using Amiibomb! The app works with NTAG215 NFC tags so you can quickly restore your backups easely. You can also import your own .bin files if you prefer to keep your Amiibos sealed. Amiibomb works with all amiibo ever released, including such series as Animal Crossing, Mario, Metroid, Legend of Zelda, Pokemon, Diablo etc. Features: • Unlimited reads and writes. Buy once, own forever! • Superior, beautiful and user-friendly interface • Import your own .bin files or dump real Amiibos • Support for all Amiibos ever released • Write custom Amiibo files • No ads or annoying pop-ups • Easy to use • Full offline support • Dark mode Amiibomb is built with privacy in mind. That means that no data is sent to developers or any other third party. Amiibomb does not send any Amiibo data anywhere. Amiibomb does not have any tracking tools in the app. All your Amiibo data is stored privately on your device and only you have access to it. Note: You need an iPhone 7 or newer to be able to read and write NFC tags. Other devices does not have a NFC chip! DISCLAIMER Amiibomb is an unofficial app for collectors and fans of amiibo and is intended only to be used for informational and educational purposes. Amiibomb is in no way affiliated with Nintendo. amiibo is a registered trademark of Nintendo. All items, names, and other aspects are trademarked and owned by their respective owners.
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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 Native
Expo
zustand
@react-native-async-storage/async-storage
expo-nfc-manager
react-navigation
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.
