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.
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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.
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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 NetBenefits: 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.
Download the Fidelity NetBenefits® app to easily manage your employee benefits—securely, all in one place. From your 401(k) and retirement savings to health insurance, Health Savings Accounts (HSAs), and stock plans, you can monitor, get notifications and take action anywhere, anytime. Employee retirement and savings • View balances and investments for your 401(k) at Fidelity, 403(b), and other retirement accounts • Review performance and track progress toward your retirement savings goals • Plan with confidence using articles, tools and videos to support your financial well being Health and benefits • Manage HSA expenses and investments • Quickly find health plan details, including: • Covered family members • Provider phone numbers • Group numbers • Enroll in health insurance during annual enrollment Take action • Change contributions and investments across eligible 401(k), 403(b), and HSA accounts • Move money or take a loan • Send documents and rollover checks using your phone’s camera Stay informed and secure • Get personalized, timely reminders about important account actions • Protect your information with advanced security features, including: • Customer verification • Biometrics Share feedback Tell us what you think. Love our app? Let us know. Can’t find something? Let us help you find what you’re looking for. Additional information The NetBenefits® smartphone app is available to individuals who have one or more workplace benefits provided by Fidelity Investments. Looking for help with accounts beyond your employee savings and benefits? Check out our companion Fidelity Investments app to explore more ways to save, invest and trade. NetBenefits and the NetBenefits design logo are registered service marks of FMR LLC. The images below are for illustrative purposes only. Fidelity Investments Privacy Policy: https://nb.fidelity.com/public/nb/default/resourceslibrary/articles/privacypolicy
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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: Complicated user onboarding process
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited transaction categorization options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of budget tracking features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Slow loading times for reports
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.
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.