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
TrustLedger
Track Personal Loans with Confidence
$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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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.
What's included
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 TrustLedger: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Track Personal Loans with Confidence TrustLedger helps you keep track of money you've loaned to friends, family, roommates, or anyone you trust. Stay organized with loan records, payment tracking, reminders, and due dates—all while keeping your data private on your own device. No accounts. No subscriptions. No cloud required. Features • Create and manage unlimited personal loans • Track balances, payment history, and remaining amounts • Schedule recurring payment plans • View upcoming, due, late, and completed payments • Calendar view for important payment dates • Receive payment reminders and notifications • Organize borrowers with detailed profiles • Automatic trust score based on payment history • Export loan information when needed • Secure local storage—your data stays on your device • Backup and restore your information • Modern, clean interface designed for quick access Perfect For • Lending money to friends • Family loans • Personal payment agreements • Roommates • Small private loans • Informal lending Privacy First Your financial records stay on your device. TrustLedger does not require an account or subscription to manage your loans. Buy Once. Own It Forever. One purchase unlocks the full app with no recurring fees, subscriptions, or hidden costs.
Written user reviews are not shown here. Check current App Store reviews >
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 robust error handling and user feedback during account linking.
Assumption to check: Users often face issues with account linking and data synchronization in finance apps.
Validate with people who use this workflow before building.
Hypothesis 2
Provide smart categorization options using machine learning.
Assumption to check: Many finance apps lack intuitive transaction categorization.
Validate with people who use this workflow before building.
Hypothesis 3
Create a simplified budgeting interface with easy-to-understand visuals.
Assumption to check: Users find budgeting features cumbersome and complex.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate advanced reporting tools with customizable charts and insights.
Assumption to check: Limited reporting and analytics features in many finance apps.
Validate with people who use this workflow before building.
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
React Native
Expo
Zustand
React Navigation
AsyncStorage
TypeScript
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.
