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.
Step is the ultimate money app to help you build credit, grow your savings, borrow money with no interest, and get cash back
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 Step: All-In-One Money App: 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 features for budget tracking
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Slow customer support response times
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Transaction categorization inaccuracies
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Complex paywall activation
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.
Step is the ultimate money app to help you build credit, grow your savings, borrow money with no interest, and get cash back. Trusted by over 7 million users, Step puts more money in your pocket and helps you become more financially independent, giving you the freedom to chase your dreams. Why Step: BUILD CREDIT FOR FREE: The average Step user boosts their credit score by 57 points in their first year. CASHBACK ON EVERY PURCHASE: Get at least 1% cashback on every card purchase and up to 10% at rotating merchants. EARN 3% ON YOUR SAVINGS: Unlock one of the highest savings rates in the country, FDIC-insured up to $1M. EARN OVER $200/MONTH: Get paid to play games, take surveys, and more. GET UP TO $250 WITH STEP EARLYPAY: Don’t wait for payday. Get fast cash when you need it most. No interest. No stress. No direct deposit needed. Access between $20 - $250. More Reasons to Love Step: • Free credit building at any age • Step Visa Card accepted everywhere Visa is around the world • Safe and secure with built-in fraud protection with Visa’s Zero Liability Policy • Merchant blocking features • No security deposit, no interest, and no hidden fees *Step is a financial technology company, not a bank. Banking services provided by Evolve Bank & Trust, Member FDIC. 1. Not everyone will qualify. Must be 18 years or older. To be eligible for loans over $100 a minimum qualifying direct deposit to your Step account is required. Offer can go up with on-time payments. Instant Transfers are available for a fee. Instant Transfers typically occur in seconds, but may take up to 30 minutes. Not all users will qualify. 2. Average based on analysis conducted by TransUnion based on 594 Step users aged 21-27 with a positive increase in their credit score within a 360-day period beginning from the first instance of Step reporting to the credit bureau. 3. Requires Step Black enrollment, either through qualifying direct deposit or paid monthly membership. Ability to earn $200+ in the form of credits on purchases or statement credits for purchases with select Step Black partners, as will be advertised. Step does not provide, endorse, or guarantee any third-party product, service, information or recommendation listed above. The third parties listed are solely responsible for their products and services, and all trademarks listed are the property of their respective owners. Enrollment may be required.
Written user reviews are not shown here. Check current App Store reviews >
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.