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.
Easily manage your health care benefit plans and expenses.
Free · In-app purchases
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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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 Fidelity Health®: 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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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: Limited account linking options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Complex navigation
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent transaction categorization
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Need for better budgeting tools
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Easily manage your health care benefit plans and expenses. The Fidelity Health® app was built to help you minimize the time, cost, and hassle of managing your health care needs. It can help you manage your benefit plans and accounts if you’re enrolled in an employer-sponsored health benefits plan through Fidelity or if you have a Fidelity Health Savings Account (HSA). With Fidelity Health, you can: Access key info about your coverage and benefits · See all your health plan coverage and benefit details · Save and share pictures of your health benefit, prescription, and vaccination ID cards for easy access anywhere Manage your health care expenses · See your Fidelity HSA balances and transaction history, or balances for certain flexible spending accounts (FSAs) · Reimburse yourself from your Fidelity HSA or FSAs for qualified medical expenses you paid out-of-pocket · Pay your providers directly from your Fidelity HSA, brokerage or cash management accounts, FSAs, or personal bank accounts · Scan a bill, so it’s easier to pay for health care expenses using your Fidelity HSA, brokerage, or cash management accounts · Take advantage of your Fidelity HSA on the go by making one-time, tax-deductible contributions from your Fidelity brokerage or cash management accounts, or linked bank accounts · Upload and save receipts for health care expenses · Link an external bank account to your Fidelity HSA in real time so you can make a one-time contribution · Track activity across your accounts, including the status of payments, reimbursements, contributions, and other activity · Activate and set your initial PIN on your HSA or Health & Benefits debit cards Navigate your day-to-day health care needs · If enabled by your employer, search for in-network medical providers close to your location · Scan a product’s barcode to help find out if it’s a qualified medical expense for your Fidelity HSA or FSAs The Fidelity Health app is available to people who enroll in their employer-sponsored health benefits through Fidelity or have an HSA with Fidelity. The features and functionality will vary based on the relationship between you, your employer (if applicable), and Fidelity. You can use your current Fidelity NetBenefits® or Fidelity.com login information to access Fidelity Health. Fidelity Health and the Fidelity Health logo are registered service marks of FMR LLC. Images are for illustrative purposes only. Fidelity Brokerage Services LLC, Member NYSE, SIPC © 2025 FMR LLC. All rights reserved. 974525.25.0
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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.