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.
* Selected as the Best Finance App by Apple two years in a row
$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.
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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 My Wallet+: 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 customization for categories and transactions
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of automatic transaction categorization
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No budgeting features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate reporting tools
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.
* Selected as the Best Finance App by Apple two years in a row * International bestseller and number 1 in the finance category in 100 countries * Awarded "App of the day" in several international magazines and mentioned in The New York Times My Wallet+ is an app that helps you keep track of your expenses in a really easy and elegant way. All you need to do is to enter your expenses and incomes to monitor how much you spend, what you spend on and how much you have left to spend. You can do it where ever you are. Just pick up the phone and enter the transaction directly. The app consists of: 1. Week, Month and Year overview with stylish drill-down barcharts showing you how you spent your money and how much money you have left. 2. When you add your incomes and expenses they show up in a list per day. It is also possible to add recurring transactions to make it easier for you. 3. A flexible category structure where you add the categories and subcategories that suits you and your lifestyle. 4. Export your expenses to Excel, CSV or HTML-format, for backup and analysis. 5. You decide when your month starts, for example the 25th of each month whenyou get your salary, and see how much money you have left to spend. 6. Backup via Dropbox 7. Set all your accounts, such as bank accounts, credit cards, cash and get the current balance. 8. Password to protect your information .... and soon we will release a sync-solution and an Ipadversion. My Wallet+ supports English, German, Spanish, French, Dutch, Portugese, Italian, Russian, Japanese, Simplified Chinese, Korean, Swedish, Danish, Finnish and Norwegian. The product is simple to use and will evolve along with its users needs. If you have questions, comments or want to follow and influence the development of the product, visit: http://www.block21.com Follow us on Twitter: @mywalletapp or Facebook: http://facebook.com/mywalletapp ... or drop a line to: [email protected]
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.