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
Futures Journal
Futures Journal — The trading journal built for futures traders.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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/
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 Futures Journal: 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
Focus on thorough testing and user feedback during development.
Assumption to check: Lack of user reviews can indicate poor user experience or bugs
Validate with people who use this workflow before building.
Hypothesis 2
Ensure a clear and structured layout with easy navigation.
Assumption to check: Finance apps often have confusing layouts
Validate with people who use this workflow before building.
Hypothesis 3
Implement visual stats and insights to improve tracking.
Assumption to check: Users may find it hard to track performance over time
Validate with people who use this workflow before building.
Hypothesis 4
Provide comprehensive options for various trading accounts.
Assumption to check: Limited support for different account types
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
Futures Journal — The trading journal built for futures traders. Stop tracking trades in spreadsheets. Futures Journal helps you log trades, analyze performance, and manage risk in one powerful iPhone app designed specifically for futures markets. Whether you trade ES, NQ, CL, GC, or micro futures, Futures Journal gives you the tools to review your performance and improve your edge. Track Every Trade Log trades in seconds with a clean, streamlined interface. Record entry and exit prices, symbol, strategy, stop loss, risk-to-reward ratio, and notes so every trade is documented. Keep a complete searchable trade history and quickly edit or delete entries when needed. Performance Dashboard See how your trading is performing at a glance. Track: • Current account balance • Total profit & loss • Win rate • Win / loss counts • Average win and average loss • Maximum gain and loss A cumulative P&L chart helps you visualize your performance over time so you can identify trends and refine your strategy. Auto-Close Trade Tracking Automatically close journal entries when the delayed market price reaches your stop loss or profit target. This helps keep your journal accurate without manually updating trades. Important: Futures Journal is a journal only. It does not connect to your broker or place trades. Built-In Risk Calculator Size positions instantly using your maximum risk per trade and ATR. The calculator uses symbol-specific tick size and tick value so contract sizing and risk calculations remain accurate for each futures market. Futures Market Data View delayed futures quotes and charts directly inside the app. Refresh prices on demand and analyze the market without leaving your journal. Pre-Loaded Futures Symbols Futures Journal includes tick size and tick value data for major contracts including: ES, NQ, RTY, MES, MNQ, CL, GC, SI, MCL, MGC, and ZB You can also add custom symbols and strategies in the setup screen. Easy Setup Enter your starting account balance and begin logging trades immediately. The app structure mirrors traditional spreadsheet journals, making it easy to migrate from Excel. You can also load sample data to explore the app before adding your own trades. Built for Serious Traders Futures Journal is built natively with SwiftUI and SwiftData for speed, reliability, and a clean dark-mode interface. Your trading data stays stored on your device, giving you a focused journaling experience without unnecessary complexity.
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
Supabase
zustand
victory-native
@react-navigation/native
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.
