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.
Ledger is designed around double-entry accounting
$6.99 · 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.
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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 Ledger - Accounting: 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 often find it hard to track multiple accounts effectively.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Budgeting features are often too simplistic.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Security concerns regarding data privacy.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Users may struggle with manual transaction entry.
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.
Ledger is designed around double-entry accounting. Because Ledger is based on proven accounting practices, your transactions can be as complex as you need them to be. Record income, expenses, transfers, and splits through a simple interface. When viewing accounts and their transactions, balances are at the forefront. Balances are charted for each account. For bank accounts, see significant deposits and withdrawals at a glance. For income and expenses, see your budget plotted against your spending balances — a budget tracker that shows how you're actually doing against your plan. Capture transactions using CSV import. Automations can be created to assign categories based on transaction text. You can also set up integrations in Shortcuts, saving entries when using Apple Pay. Sometimes a calendar is the best way to navigate your spending. From the main screen, it shows any transactions that happened on a given day. Open it from an expense account and you can see how often you're dining out, making online purchases, and so on — a budget calendar that makes patterns easy to spot. Budgets can be a great tool when managing your money, but sometimes it's hard to know where to start. Open stats from each account to see your per-month spending over the past year. Once you create your budget, that line is overlaid on your spending chart. Sometimes your invoices come far in advance. Ledger supports transaction statuses. When you receive an invoice, record it as "planned." From the main screen, open the Upcoming screen to see which invoices are coming due. For more predictable expenses, create a schedule and assign a template transaction. Entries can be generated on those dates as they occur. Ledger supports backup and restore. It supports iPhone and iPad, and your data can be synced between devices. Dark mode and Spotlight search are also supported.
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.