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
Coin Identifier & AI Scanner
Coin Identifier - Coin Finder can quickly and accurately identify coins from various countries, eras, and denominations, powered by AI Coin recognition technology.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
4,372 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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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/
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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 Coin Identifier & AI Scanner: map the core Reference 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
Coin Identifier - Coin Finder can quickly and accurately identify coins from various countries, eras, and denominations, powered by AI Coin recognition technology. Simply snap a photo of the coin, and our intelligent system will analyze its features, providing detailed information about its history, value, and significance. This intuitive process not only saves time but also enhances the joy of discovering the stories behind each coin. Additionally, the Coin Identifier - Coin Finder app allows you to keep a record and store your collections directly within it, ensuring you always have an up-to-date account of your collectibles and their values. You can even organize your collections by coin series within the app. KEY FEATURES: ●Identify Any Coins Just snap your coin or select one from your photo library, and the Coin Identifier - Coin Finder will swiftly recognize your coin, whether it's a rare find, a foreign currency, or even an error coin. ●Detailed Coin Identify Results Every identification offers a comprehensive look at the coin, detailing its name, origin country, issuance year, monetary value, metal makeup, and additional pertinent information. ●Accurate Coin Market Price We use powerful AI computing models to collect market prices and provide you with the most accurate and precise market valuation. ●Record and store your collections Maintain your coin collection by systematically adding newly identified pieces. Organize them into multiple collections as per your preference to keep everything neatly sorted and traceable at any time. Coin Identifier - Coin Finder was created to help more people explore and learn about the coins around them. Download the app today to enjoy a more pleasant coin journey and train yourself to be a coin expert! We would be happy to receive your suggestions or feedbacks about our app! Please email us at [email protected] Privacy Policy: https://coolsummerdev.com/aiidentifier-privacy-policy/ Terms of Use: https://coolsummerdev.com/aiidentifier-terms-of-use/
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 a community-driven database for user contributions.
Assumption to check: Limited coin database
Validate with people who use this workflow before building.
Hypothesis 2
Enhance AI algorithms for better identification accuracy.
Assumption to check: Inaccurate scanning results
Validate with people who use this workflow before building.
Hypothesis 3
Optimize image loading and caching mechanisms.
Assumption to check: Slow loading times for high-resolution images
Validate with people who use this workflow before building.
Hypothesis 4
Offer a clearer explanation of features included in each subscription tier.
Assumption to check: Confusing subscription model
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
Expo
react-navigation
axios
@react-native-async-storage/async-storage
expo-camera
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.
