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
Military Reserve Retirement
Know exactly what your military reserve retirement is worth — before you get there.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
144 ratings · Top 15%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 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.
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 Military Reserve Retirement: 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
Include budgeting and investment tracking features.
Assumption to check: Limited features compared to broader finance apps
Validate with people who use this workflow before building.
Hypothesis 2
Implement detailed algorithm validation and user feedback for improvement.
Assumption to check: Some users report calculation inaccuracies
Validate with people who use this workflow before building.
Hypothesis 3
Revamp UI with modern design principles and better usability.
Assumption to check: User interface feels dated
Validate with people who use this workflow before building.
Hypothesis 4
Integrate live chat support or a comprehensive FAQ section.
Assumption to check: Lack of customer support options
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
Know exactly what your military reserve retirement is worth — before you get there. Reserve Retirement Calc takes the guesswork out of your future retirement pay. Enter your pay grade, retirement points, and target retirement year, and get an instant, detailed breakdown of your monthly retirement pay and Survivor Benefit Program (SBP) premiums — shareable by email in seconds. What it calculates: - Monthly retirement pay under High-3 or Blended Retirement System (BRS) - TSP balance projection for BRS members, including lump-sum election and reduced-pay scenarios - Base SBP and RC-SBP premiums for spouse coverage, with Method 1 and Method 2 comparisons - SBP breakeven analysis so you know when coverage pays off Built for reserve and guard members: - Whether you're an active driller, approaching the 20-year mark, or already in the gray area waiting for age 60, this app gives you the numbers that matter for your situation. Not officially endorsed or sponsored by the U.S. Department of Defense.
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
React Native
Expo
Supabase
react-navigation
axios
react-native-paper
BUILD KIT DIFFICULTY
Starter
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.
