App Overview

CasaLedger: Property Expenses icon

CasaLedger: Property Expenses

Thomas Buerkert · Finance

CasaLedger is a straightforward expense tracker built for people who manage property — a

$19.99

PRICE
$19.99
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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A product spec, screen plans, and build steps for your coding agent.

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What's included15 files

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.

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.

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for CasaLedger: Property Expenses: 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 categorization using machine learning.

Assumption to check: Users may find it difficult to categorize expenses accurately.

Validate with people who use this workflow before building.

Hypothesis 2

Expand reporting options with customizable filters and visualizations.

Assumption to check: Limited reporting features may not satisfy advanced users.

Validate with people who use this workflow before building.

Hypothesis 3

Integrate cloud backup options for data safety.

Assumption to check: Users may feel the app lacks a robust backup solution.

Validate with people who use this workflow before building.

Hypothesis 4

Consider a freemium model with essential features to attract more users.

Assumption to check: The pricing may deter potential users.

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

CasaLedger is a straightforward expense tracker built for people who manage property — a single condo, a beachfront home, or a portfolio of buildings. Log what you spend, attach the receipt, and produce a clean monthly report when the owner or accountant asks for one. No accounts, no subscriptions, no data leaving your phone. TRACK EVERY PROPERTY SEPARATELY Add as many properties as you manage. Each keeps its own transactions, receipts, projects, and report recipients, so nothing gets mixed together. Switch between them with one tap, or view a combined picture across everything you manage. CAPTURE RECEIPTS AS YOU GO Photograph a receipt the moment you pay, or attach a PDF invoice, spreadsheet, or document. Everything stays tied to the transaction it belongs to, so you are not hunting through a camera roll at month end. REPORTS THAT ANSWER THE QUESTION Every report shows an opening balance, the period's deposits and expenses, a running balance on each line, and a category breakdown. Send the full package — formatted report, every receipt, and a spreadsheet — to your saved recipients through email or messaging in one tap. PLAN AHEAD Record recurring monthly bills once instead of retyping them. Add upcoming projects with estimated costs so you can see what a month will actually cost before it arrives. Mark anything paid to turn it into a real transaction. BEFORE AND AFTER Document maintenance and renovation work with paired before and after photos, so you have a record of what was done and what it cost. BUILT FOR PROPERTY WORK • Multiple properties, kept cleanly separate • Receipt photos, PDFs, and documents • Monthly and all-time reports with running balances • One-tap report sending to saved recipients • Recurring bills and planned expense forecasting • Before/after project photos • Face ID or Touch ID app lock • Optional monthly reminders to log your bills • Full English and Spanish • Export your data as a backup any time YOUR DATA STAYS YOURS CasaLedger stores everything on your device. There is no account to create, no server holding your records, and no analytics or advertising. We cannot see your finances because we never receive them. Export a backup whenever you want a copy. Because there is no cloud copy, your data lives only on this device — use the backup feature regularly, particularly before changing phones. Built by Buerkert Realty Group.

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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
React Native
Expo
Supabase
Zustand
Victory Native
React Navigation
BUILD KIT DIFFICULTY
Intermediate

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.