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.
All The Features You Want:
$2.99 · 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.
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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 Simple Envelope Budgeting: 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: Users find envelope tracking cumbersome when managing multiple categories.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited transaction history view.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Notifications for budget limits are lacking.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Some users have issues with manual input of 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.
All The Features You Want: - Syncs Via iCloud to All of Your Devices - Goals for Savings - Color-Coded Envelopes - Supports iPhone and iPad - Search Function to Quickly Find Envelopes - Filters for Viewing Specific Transactions and Expenses - Indicates When You Are Over Budget None of the Features You Don't: - No Ads - No In-App Purchases to Unlock Full Functionality - No Syncing with Your Bank Account (I've never found an app that does this in a useful manner anyways) Creating a budget is a crucial element of financial success. Without tracking your spending, even the fanciest of excel sheets are deemed useless. Simple Envelope is the easiest, quickest, and most efficient way to monitor and execute your budgets. Based on the physical envelope method, Simple Envelope is here to help you digitize your financial efforts so you can easily track your spending habits. Tracking family allowances? Instead of making trips to the bank, leave everyone's allowance in the bank and keep it all in digital envelopes instead! Simple envelope strives to make tracking your budgets as easy as 1,2,3! Simply create new “envelopes” with your budget's desired name and monetary amount. As you spend, add in your expenditures to see where and how you spend your money - Simple in and Simple out.
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.