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.
The last loan calculator app you'll ever need
$1.99 · 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.
Kit ready. Verify your email to download it.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for The LoanLab: 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.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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: Lack of personalized loan recommendations based on user financial health
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited payment tracking features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inadequate customer support options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High subscription cost compared to free alternatives
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.
The last loan calculator app you'll ever need. Know exactly what any loan will cost you, and how you can expect payments and commitments to change based on every scenario. App is enabled to run in almost every country based on their unique market, regulatory, and currency characteristics. LoanLab is the loan calculator and planner built for people who want to make smarter borrowing decisions. Whether you're exploring a home mortgage, pricing out a personal loan, or running the numbers on a business loan, LoanLab gives you the full picture: monthly payment, total interest, and a complete amortization schedule — calculated instantly, stored on your device. Combine loans into one scenario to give you a complete picture. For example, say you want to purchase land and build your own home. Add a land loan, and a construction loan together to see what your effective monthly cost could be. LoanLab uses real time market data to give you useable rates & terms on the top 25 most common loans including personal, home, and business. Add in your other monthly expenses to get the most clear picture available anywhere! Save and compare scenarios after creation. No account required. No data leaves your phone. Just clear, accurate loan math whenever you need it. PLAN YOUR FULL FINANCIAL PICTURE Most loan calculators stop at the monthly payment. LoanLab goes further. Build a portfolio of saved loans and add your recurring expenses to see your true total monthly commitment — so you know what you can actually afford before you borrow. Save, load, compare, and duplicate portfolio scenarios across sessions. Planning a home purchase while carrying a car loan and existing personal debt? LoanLab holds it all, persistently, launch after launch. For example, say you want to purchase land and build your own home. Add a land loan, and a construction loan together to see what your effective monthly cost could be. ACCELERATE YOUR PAYOFF The Payoff Accelerator shows you exactly what happens when you pay a little extra. Model additional monthly contributions, a one-time lump sum, or both — and see the real impact in months saved and interest avoided. Small extra payments can mean thousands of dollars back in your pocket, and now you'll know precisely how much. COMPARE LOANS SIDE BY SIDE Not all loans are created equal. LoanLab's comparison tool lets you evaluate two to four loan scenarios simultaneously, with best-value highlighting that makes the right choice obvious. Different lenders, different terms, different rates — assessed in seconds, not spreadsheets. LEARN WITH AI-POWERED EDUCATION Have questions about current rates, loan terms, or how lending actually works? The Learn tab delivers AI-powered answers grounded in current, web-sourced data — so you're getting timely, relevant information, not outdated generalizations. Suggested questions adapt to your recent loan searches and saves, keeping the education contextual and genuinely useful. LoanLab is an educational planning tool, not a financial advisor. Nothing in the app constitutes financial advice. For decisions that matter, always consult a qualified financial professional. Ready to see the real cost of any loan? Download LoanLab and start planning with confidence.
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.