App Overview

FERS+CSRS Calculator -FedPay icon

FERS+CSRS Calculator -FedPay

Hugo Andrada · Finance

Built exclusively for U.S

$4.99 · In-app purchases

PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.0
1 ratings · Top 30%

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.

Build your own version

Build Kit

Make this idea yours

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

First kit free with a verified email

Add to a Remix

Combine features and design from your favorite apps.

Kit ready. Verify your email to download it.

What's included18 files

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.

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.

JavaScript is required to complete mailbox verification.

Free quick prompt For a smaller starting point

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 FERS+CSRS Calculator -FedPay: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

Preview ready. Verify your email to reveal and copy the full prompt.

JavaScript is required to complete mailbox verification. Return to this prompt preview.

Continue in Rork copies the full prompt to your clipboard first, then opens Rork in a new tab.

Continue in Rork >

Affiliate link: CloneChart may earn a commission at no extra cost

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 user feedback features and testimonials.

Assumption to check: Limited user reviews suggest lack of trust and feedback.

Validate with people who use this workflow before building.

Hypothesis 2

Provide tooltips and educational resources within the app.

Assumption to check: Complex retirement calculations may confuse users.

Validate with people who use this workflow before building.

Hypothesis 3

Enhance visibility of subscription benefits and options.

Assumption to check: In-app purchase options may not be clear.

Validate with people who use this workflow before building.

Hypothesis 4

Allow users to save and compare multiple calculations.

Assumption to check: Lack of customization and personalization.

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

Built exclusively for U.S. federal employees, FedRetire calculates your complete retirement picture — pension, TSP, Social Security, FERS Supplement, and true net take-home pay after taxes and health costs. Everything runs 100% on your device. No account needed. No internet connection required. Your data never leaves your phone. COMPLETE FERS & CSRS SUPPORT Full support for FERS, CSRS, CSRS Offset, and FERS Transfer employees. All special provision categories included: Law Enforcement Officers (LEO), Firefighters (FF), Air Traffic Controllers (ATC), and Customs & Border Protection Officers (CBPO) — with the correct 1.7% multiplier and mandatory retirement age rules. PENSION CALCULATOR Calculates your exact pension using your High-3 salary, years of service, and the correct formula for your system and category. Includes sick leave credit, military buyback cost and break-even analysis, survivor benefit elections, and COLA projections from retirement through life expectancy. FERS ANNUITY SUPPLEMENT Automatically calculates your Special Retirement Supplement if you retire before 62 under an immediate annuity. Shows the earnings test limit, estimated lifetime value, and exactly when it ends — regardless of when you claim Social Security. TSP PROJECTIONS Projects your Thrift Savings Plan balance to retirement using your current balance, contributions, and growth assumptions. Includes year-by-year withdrawal modeling, RMD tracking starting at age 73, and depletion age analysis so you always know when funds run out. SOCIAL SECURITY ANALYSIS Compare claiming at ages 62, 67, and 70 with cumulative lifetime benefit analysis. Full WEP (Windfall Elimination Provision) support for CSRS employees with Social Security coverage. TAXES & NET INCOME Federal income tax calculated using current IRS brackets for your filing status. State-specific rules for all 50 states and DC — including pension exemptions, Social Security taxation, and no-income-tax states. See your true net monthly income after every deduction. HEALTH COST PROJECTIONS FEHB premium projections with annual growth through retirement. Medicare Part B, Part D, and Medigap cost planning. Automatic reminder when Medicare enrollment is approaching to help you avoid costly late enrollment penalties. YEAR-BY-YEAR TIMELINE See every income source from retirement day through life expectancy. Key milestones highlighted automatically: FERS Supplement ending, Social Security beginning, Medicare eligibility at 65, TSP Required Minimum Distributions at 73, and TSP depletion. Tap any year to expand the full detail. MULTIPLE PROFILES Create separate profiles for you and your spouse, or model different retirement scenarios side by side. Switch between profiles instantly. Each profile is saved privately on your device — nothing is shared or synced. COMPARE SCENARIOS Side-by-side comparison of two retirement years. See the exact difference in pension, net income, and TSP balance between retiring now vs. working two more years — so you can make your decision with complete information. PDF EXPORT Generate a detailed retirement report and share it with your financial advisor, HR office, or family. Includes pension calculation, TSP projection, Social Security analysis, tax breakdown, and full timeline — generated entirely on your device. YOUR PRIVACY IS ABSOLUTE FedRetire uses data published by OPM, IRS, SSA, and CMS — all stored locally in the app. No account required. No internet connection needed. No personal information, financial data, or retirement details are ever transmitted to any server. Your data never leaves your phone. The developer is not affiliated with the U.S. federal government, OPM, SSA, TSP, or any federal agency.

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

< Scroll to see more >

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
Axios
Zustand
React Navigation
React Native Paper
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.