App Overview

StopWatch for Cross Country icon

StopWatch for Cross Country

German PARDO · Sports

Finally a Stopwatch specific for Cross Country and Road Races

$1.99 · In-app purchases

PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.2
56 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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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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for StopWatch for Cross Country: map the core Sports 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

Focus on a simple, user-friendly design with essential features only.

Assumption to check: Some stopwatch apps are overly complicated with too many features.

Validate with people who use this workflow before building.

Hypothesis 2

Provide users with customizable alerts and sounds for laps.

Assumption to check: Lack of customization options for lap alerts and sounds.

Validate with people who use this workflow before building.

Hypothesis 3

Create a streamlined history view that’s easy to navigate.

Assumption to check: Difficulty in accessing previous session data quickly.

Validate with people who use this workflow before building.

Hypothesis 4

Enable easy sharing of session results via social media or messaging.

Assumption to check: Limited sharing options for users to share their results.

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

Finally a Stopwatch specific for Cross Country and Road Races. Used by coaches, runners, parents and fans. This application keeps the same concept of the StopWatch for Track & Field app, but includes the key requirements for Cross Country and Road races. Includes predefined standard events and splits but also it allows you to create your own events and splits. The application can be used to time one or multiple athletes in the same race. You can set the application to work in Miles or Kilometers. Keeps all your events history for later review and analysis. Each performance can be shared by email. Missed the gun? Don't worry, you can predefine the start time of the timer. It allows you to Import/Export athletes. This is useful when you have a big roster of athletes that needs to be imported to the app. Also if you have the app installed in different devices (iPad and iPhone), it facilitates the process of keeping the roster in sync. It allows to predefine Teams of athletes (before the meet). These teams, along with individual athletes, are available to pick from when using the app during meets; these speed up the timing process during the meet. Smart Stop feature: because this app knows the event and split distance, it knows exactly when the final lap is, so it will stop the stopwatch at the end of the final lap, regardless of the button you use (lap or stop). Because StopWatch for Cross Country and Road races knows the event and split characteristics, you can record: -The distance for each split -The estimated time at the finish line -The pace for each split -The average pace for each runner at the end of the event. If you have questions, suggestions or issues, before writing it in a review, don't hesitate to contact us at [email protected]

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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
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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.