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
Forex Watch X
Never lose time in the 24 hour Forex Markets ever again
$99.99 · In-app purchases
PRICE
$99.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
38 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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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.
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 Forex Watch X: map the core Finance 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
Allow users to set custom alert conditions based on percentage changes.
Assumption to check: Limited customization options for alerts
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline storage for recent rates and alerts.
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Create a more integrated view for news related to specific currency pairs.
Assumption to check: Difficult to navigate between news and rates
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a freemium model for initial access to features.
Assumption to check: High one-time purchase price without trials
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
Never lose time in the 24 hour Forex Markets ever again. Forex Watch shows the Open and Close times of all major markets around the world including stock exchanges: each one color coded and relative to your timezone. Create calendar reminders for big market events 5 minutes before they occur with a touch of a button. See a countdown to each event to aid your trading decisions around market moving news events. Liquidity monitor gauges market participants and helps you avoid moments of light sporadic trading. Features Include: - Color coded time to easily distinguish between open and closed markets. - Live Video News to keep track of latest breaking events. - Liquidity gauge for the level of market participation. - Countdown to the opening and closing bell for both Forex and Stock Exchanges. - Notifications for open and close for Forex and Stock Exchanges. - Push Notifications for breaking news. - Full weekly Forex calendar. Easily add events to iPhone and iCloud Calendar schedule with reminder 5 minutes before event. - Watchlist of upcoming news events to assist with your trading strategy. (Get out or downsize positions minutes before High impact news if profit targets have not been hit as an example). - Easy to use Price Alerts Privacy Policy: http://thirtysevenllc.com/privacypolicy.html Terms Of Use: http://thirtysevenllc.com/tos.html
Written user reviews are not shown here. Check current App Store reviews >
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
Axios
Redux
react-navigation
react-native-paper
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.
