App Overview

4Time — XF WOD TIMER icon

4Time — XF WOD TIMER

MettaBot, LLC · Health & Fitness

Simple and reliable timers to use with your XF or XF style workouts

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.4
49 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.

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

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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/
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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 4Time — XF WOD TIMER: map the core Health & Fitness 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

Allow users to create custom timer templates with various settings.

Assumption to check: Limited timer customization options

Validate with people who use this workflow before building.

Hypothesis 2

Implement a dashboard to track workout stats over time.

Assumption to check: Lack of workout statistics tracking

Validate with people who use this workflow before building.

Hypothesis 3

Enable users to share their workout achievements on social media.

Assumption to check: No social sharing options

Validate with people who use this workflow before building.

Hypothesis 4

Provide clearer explanations of premium features and simplify the purchase process.

Assumption to check: In-app purchase 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

Simple and reliable timers to use with your XF or XF style workouts. 4Time contains a standard timer, countdown timer, interval timer, lap timer, and even a fully programmable tabata timer. ◦ 4Time is the only timer in the App Store that allows you to use your second iOS device as a remote control! (in-app purchase required; both devices must be running same version of iOS). ◦ All timers allow you to tap the screen to add reps (except the lap timer, which allows you to add laps), helping you or a friend to keep count while you're working out. ◦ After you complete your workout, you're automatically shown your results (if available) displaying your completed reps for each round. This makes it easy to track your workout round by round and record this data to your personal log/journal easily. ◦ Tabata Timer: Allows you to set work, rest between intervals, rest between tabatas, number of rounds, and number of tabatas -- as well as a custom name for each tabata. Everything you need! ◦ 4Time also give you access to your device's music library so you can listen to that power song to push you the extra mile! ◦ Like to be original? 4Time offers several different timer sounds for you to choose one (requires in app purchase). **************************************************** If you encounter any problems with 4Time please email us directly ([email protected]) as opposed to leaving a negative review. Be sure our responses are not being automatically placed into your "Junk" mailbox. It is difficult for us to help you when we cannot communicate back to you. We also request that you "report a problem" in the App Store. This will help us determine the cause of the problem. It also helps us and other users when we receive emails from you. Thank you : ) ****************************************************

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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.

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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.