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
Crypto-Watch
CryptoWatch is back on the App Store, rebuilt from scratch for iPhone and Apple Watch.
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
1 ratings · Below Average
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.
First kit free with a verified email
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Combine features and design from your favorite apps.
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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 included
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.
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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
CryptoWatch is back on the App Store, rebuilt from scratch for iPhone and Apple Watch. TRACK YOUR PORTFOLIO Add the coins you hold and see what they are worth in your currency of choice, with each coin's share of the total and how it moved today. BROWSE THE MARKET Follow the top 250 coins by market cap, search by name, and open any coin for its price chart and market data before you add it to your portfolio. A REAL APPLE WATCH APP Not a mirrored phone screen. The watch app has its own Portfolio, Market and coin detail views, and your iPhone keeps it up to date with your holdings and currency settings. COMPLICATIONS FOR YOUR WATCH FACE Portfolio shows your total value at a glance. Ticker follows a trading pair live from one of 10 exchanges: Binance, Binance.US, Bitstamp, Bybit, Coinbase, Crypto.com, HTX, Kraken, KuCoin and OKX. The rectangular Ticker adds a 7-day price chart. OPTIONAL SYNC Sign in to back up your portfolio and keep it in sync with CryptoWatch on your other devices. Signing in is never required. CRYPTOWATCH PRO: YOUR EXCHANGES IN YOUR PORTFOLIO Connect a read-only API key from one of 19 exchanges, including Coinbase, Kraken, Bitvavo, Bitstamp and Crypto.com, and its balances show up in your portfolio next to the coins you track yourself. Your portfolio becomes one overview, with filters to show a single source. Keys never leave the iPhone you entered them on; your Apple Watch, widgets and other signed-in devices show the synced balances. CryptoWatch Pro is optional. Everything else in the app works without it. CryptoWatch shows market and portfolio information only. It never trades, holds funds or moves money, and it only works with read-only exchange keys. ABOUT THE SUBSCRIPTION CryptoWatch Pro is an auto-renewable subscription, monthly or yearly, with a free trial. Payment is charged to your Apple Account when you confirm the purchase, or when the free trial ends. The subscription renews automatically unless you cancel it at least 24 hours before the end of the current period; your account is charged for the renewal within the 24 hours before the period ends. You can manage or cancel it in your Apple Account. Any unused part of a free trial ends when you buy a subscription. Terms of Use: https://cuberob.com/cryptowatch/terms.html Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://cuberob.com/cryptowatch/privacy.html
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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.
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
Not assessed in a Build Kit yet.
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.
