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.
With Zip, you can split your payments at your favorite brands, whether you shop online or in-store.¹
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 Zip - Buy Now, Pay Later: map the core Shopping 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 payment options for users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Complex user verification process
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of customer support features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Difficulty in tracking payments and transactions
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.
With Zip, you can split your payments at your favorite brands, whether you shop online or in-store.¹ DIVIDE AND THRIVE Zip lets you pay over time. Split your order into 4 or 8 installments, with payments due every 2 weeks.²³ PAY LATER WITH ZIP WHERE YOU WANT¹ — ONLINE OR IN-STORE Install our app and use Zip pretty much anywhere¹ you shop. Create a virtual card in the app for fast, easy checkout with Apple Wallet or Google Pay, or get a physical Zip Card.¹ THE SMART WAY TO PAY No hard credit checks and no impact on your credit score. We’ll remind you when installments are due so you’re on top of every payment. CHANGE YOUR PAYMENT DATES Greater flexibility in spending means more control over your payment schedule. Give yourself more breathing room with the Zip app.¹ EARN MORE SPENDING POWER When you make consistent, on-time payments, you may become eligible for increased estimated spending power.⁴ EARN CASHBACK WHILE YOU SHOP Pay with the Zip app to earn cashback on groceries, travel, and your favorite stores.⁵ Loans through Zip Pay Anywhere and Zip Checkout (including any “powered by Zip” loans) are originated by WebBank. All loans are subject to credit approval. Eligibility criteria apply. See payment terms: Zip Loan Terms of Service | Zip. Loans to California residents, other than loans through the Zip Pay Anywhere and Zip Web Checkout, are made or arranged pursuant to a California Lenders Law license. ¹ Zip can only be used for US purchases. Certain merchant, product, goods, and service restrictions apply. ² For a $400 purchase, you’d make four $102 payments every two weeks starting today for a 34.75% annual percentage rate and a total of payments of $408. An $8 origination fee is charged at commencement and prepaid as a finance charge when you make your initial payment today. Origination fees vary and can range from $4.00 to $62.00 depending on the purchase price. Actual amount of fee for your purchase will be reflected in checkout. Estimation of installment payment and annual percentage rate excludes potential tax and shipping costs. Zip Pay Anywhere and Zip Checkout financing through Zip issued by WebBank. All loans subject to credit approval. ³ For a $400 purchase, you’d make eight $52.00 payments every two weeks starting today for a 29.55% annual percentage rate and a total of payments of $417. A $17 origination fee is charged at commencement and prepaid as a finance charge when you make your initial payment today. Actual origination fees vary and can range from $8 to $60 (30 – 35% APR) depending on the purchase price. Actual amount of fee for your purchase will be reflected in checkout. Estimation of origination payment and annual percentage rate excludes potential tax and shipping costs. Zip Pay Anywhere and Zip Checkout financing through Zip issued by WebBank. All loans are subject to credit approval. ⁴ Your Estimated Spending Power is a point-in-time estimate of how much you may be able to spend, is not guaranteed, and is impacted by a number of factors. Zip or WebBank may decrease your estimated spending power within its reasonable discretion, including where you have previously had an unpaid balance or an amount past due. Your estimated spending power is not an open line of credit. Each transaction is separately reviewed for approval. For additional details, please see the terms and conditions. ⁵ For full offer details and terms and conditions, visit https://zip.co/us/cash-back-tcs.
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.