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
Rocket Mortgage
Your home loan journey simplified.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
174,624 ratings · Top 5%
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.
Build your own version
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 included18 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 Rocket Mortgage: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
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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
Provide simplified explanations and tooltips for terms.
Assumption to check: Difficulty in navigating complex mortgage terms.
Validate with people who use this workflow before building.
Hypothesis 2
Integrate real-time chat support.
Assumption to check: Slow customer support response times.
Validate with people who use this workflow before building.
Hypothesis 3
Add more payment methods and scheduling options.
Assumption to check: Limited payment options.
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate AI-driven recommendations based on user profile.
Assumption to check: Lack of personalized mortgage advice.
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
Your home loan journey simplified. Take control of your mortgage with the Rocket Mortgage® App. From applying for a loan to managing your payments, this app is your trusted companion for a seamless and stress-free mortgage experience. Whether you’re buying your first home, refinancing, or managing an existing loan, Rocket Mortgage makes it easy to stay on top of every step. Apply for a mortgage with confidence • Start your home loan application anytime, anywhere. • Get personalized loan options tailored to your financial goals. • Easily upload documents and track your application progress in real time. Manage your mortgage effortlessly • View your loan details, including balance, interest rate, and payment schedule, all in one place. • Make payments quickly and securely. • Stay informed with push notifications for payment reminders, escrow updates, and more. Tools to empower your financial journey • Monitor your home’s value and track your equity growth over time. • Access insights to help you make informed financial decisions. • Explore options to refinance or tap into your home equity when the time is right. Expert support at your fingertips • Connect with Rocket’s award-winning client care team whenever you need assistance. • Get guidance from home loan experts who are here to help every step of the way. With the Rocket Mortgage App, managing your home loan has never been simpler. Empower yourself with tools, insights, and expert support designed to make homeownership stress-free and rewarding. Download the Rocket Mortgage App today and take control of your mortgage journey. *** NMLS #3030. Equal housing lender. Licensed in all 50 states. For our licensing and disclosure information, please visit: https://www.rocketmortgage.com/legal/disclosures-licenses ***
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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
@react-navigation/native
@supabase/supabase-js
react-native-paper
BUILD KIT DIFFICULTY
Advanced
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.
