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.
App Overview
SpendingLens
SpendingLens helps you organize spending from bank-statement PDFs and manual entries in one place.
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for SpendingLens: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Implement automatic transaction categorization using machine learning.
Assumption to check: Users often find it difficult to categorize transactions accurately.
Validate with people who use this workflow before building.
Hypothesis 2
Add bank linking feature using Plaid to automate transaction imports.
Assumption to check: Manual entry of transactions is tedious and prone to errors.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce visual progress bars and alerts for budget limits.
Assumption to check: Budget tracking can be confusing and lacks visual clarity.
Validate with people who use this workflow before building.
Hypothesis 4
Provide detailed analytics and trends visualization.
Assumption to check: Users want better insights into spending patterns over time.
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
SpendingLens helps you organize spending from bank-statement PDFs and manual entries in one place. IMPORT STATEMENTS Import bank-statement PDFs from Files. SpendingLens extracts transactions on your device and suggests categories. Review imported transactions and correct dates or categories as needed. Statement layouts vary, so check imported results for accuracy. ADD YOUR OWN SPENDING Record one-time purchases or enter monthly spending for a selected number of months. Preview the payment count and total before saving, then edit individual payments in Transactions. UNDERSTAND YOUR SPENDING Explore spending by category and year. Search, sort, and filter transactions, and exclude items from reports when needed. KEEP CONTROL OF YOUR DATA PDF processing happens on your device. Export a backup through Files, including to iCloud Drive, and restore it when needed. Backups are manual and do not automatically sync between devices. No account is required.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
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BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
