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.
Option Signal is an advanced app for stock and option investors
Free
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Your first Build Kit is free with a verified email.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Option Signal Alert: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Option Signal is an advanced app for stock and option investors. Find out about big movements as they happen and have the tools to cat on them. Option signal help you stay on top of the market and get insights wherever you are. Swim with option alerts with tons of features, and more coming all the time. --Real Time Alert Options market moves very fast, with our push notification function, you will detect and fill with strange activity and big flows that force direction. Get alerted about the movements that you can act on, not the noise. --Screener & Scanner Explore option chains and data on all option trading flow chains and history to uncover new trading strategies. Detect unusual option alerts by using advanced filters and criteria to find out the unusual call and put option activities on stock market now. You can view a quick breakdown of some common options factors such as open interest, expire date, volume, implied volatility and so on. -Watchlist Build unlimited personal watchlist, stock tracker and other instruments as many as you want, rename these watchlists to test your portfolio and invest strategies. Change the time frame of the mini chart on the watchlists to help you stock analysis on stock trends by using multi time frame approach. —Premium Stock Signal Locate stocks, penny stock with good reward risk set ups and double check with ticker volumes, technical analysis and fundamental analysis. Signals include swing signal, long term signal, day trade signal and penny stocks signal. Free version will have limited number of stock signal. Paid subscription is required to access all open stock, long term signals and get real time insight push. --Premium Option Signal Get all the option movements and unusual flows that are occurring on options you like. Access stop loss, options profit calculator and buy & sell targets of low price high potential options, and set up relative options signals to leverage your investment. Free version will have limited number of option signal. Paid subscription is required to access all open option signal and get real time insight push. Payment will be charged to iTunes Account at the confirmation of purchase. Accounts will be charged for renewal within 24 hours prior to the end of the current period at the rate of the selected subscriptions above. Subscriptions can be changed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of the term will be forfeited once purchased. Privacy Policy: https://www.kyotocoltd.com/option_privacy.html Terms of Service: https://www.kyotocoltd.com/option_terms.html We are constantly trying to improve our product and service, feel free to contact us through our app for improvement and bug feedback.
Written user reviews are not shown here. Check current App Store reviews >
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
Assumption to check: Users often find alerts unreliable or delayed.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for alerts.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of educational content about options trading.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can be cluttered.
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.