App Overview

FDNY icon

FDNY

The Buddy System, LLC · Productivity

Tired of fumbling with your FDNY Chart to figure out when you’ll be working two months from now? Sick of coloring the boxes and adding reminders about your mutuals?

$7.99 · In-app purchases

PRICE
$7.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.2
84 ratings · Below Average

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 included17 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 FDNY: map the core Productivity 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

Integrate with live data feeds for real-time alerts.

Assumption to check: Limited integration with external sources like fire department databases

Validate with people who use this workflow before building.

Hypothesis 2

Simplify navigation and focus on user-centric design.

Assumption to check: Cluttered interface with too many options

Validate with people who use this workflow before building.

Hypothesis 3

Implement reliable notification scheduling and reminders.

Assumption to check: Inconsistent notifications and reminders

Validate with people who use this workflow before building.

Hypothesis 4

Clearly communicate benefits of subscription tiers and provide value.

Assumption to check: In-app purchase model can create confusion

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

Tired of fumbling with your FDNY Chart to figure out when you’ll be working two months from now? Sick of coloring the boxes and adding reminders about your mutuals? FDNY to the rescue! Custom-designed with the help of New York City firefighters, FDNY is smart about your chart. It knows about the 25 groups and their schedules, pairing of mutual partners, vacations, RSOT, and so on. The calendar screen always shows your day and night tours and your partner’s tours (using colors of your own choosing) for the next six years from “today.” It takes only a few taps to enter a mutual with your partner. A few more taps and you’ve got a banked mutual recorded with somebody else. Separate balances are maintained for each person. And, there’s no need for a new chart every year. FDNY also contains a list of NYC firehouses and callboxes, complete with locations (one touch to see maps) and firehouse phone numbers (one touch to make calls). Features: • Displays your schedule for the next six years, including vacations, holidays, and paydays. • Double-tap any day to see the day and night group numbers, just like the printed chart. • You can enter colleagues for other groups. • Records banked mutuals. Tracks tours earned or owed on a person-by-person basis. • Formats emails for sending out mutual offers. • Contains a Logbook for keeping track of tours or hours of your choosing. • Shows your vacation periods. • Logs “events” with date, time and location — you can edit the title, text, and location details when you have time. • Displays your tours and those of your mutual partner simultaneously. • Adjustable colors for day/night tours, vacations, RSOT holidays, etc. • Track all overtime, P/P, A2R, and CFR-D by pay period. • Mark special days such as training or medical appointments. • Quickly locate any NYC firehouse on a map. Sort the list by engine or ladder. • Countdown to retirement. • Extensive Help pages for every feature and screen; indexed. If you need help, or have questions or comments, the best way to contact me is by using the in-app email button on the Help screen (2nd best: [email protected]).. Please don't put questions or suggestions in a review; there's no way for me to reply directly to you. -- Jeff I reply to all emails immediately (or within a few hours if I'm sleeping or traveling, which isn't often). If you didn't hear from me promptly, it means there was failure in the "Tubes." Please try again to contact me. FDNY is for members of the New York City FD (including Fire Marshals, EMS, ABCD, and Light Duty). If you’re not a member of that department, then you do not want this app. Instead, check out Scheduler, which can handle repeatable shift schedules and on which FDNY is based.

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
Supabase
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.