App Overview

Track My Roll icon

Track My Roll

Michael Blakeney · Sports

Mobile shot tracking is here! Track My Roll will give you a very good approximation of your shot's position and speed as it travels down the lane

$3.99 · In-app purchases

PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
1.7
15 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.

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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's included15 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 Track My Roll: 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

Add community features such as leaderboards and social sharing to increase interaction.

Assumption to check: Limited user engagement features leading to low retention.

Validate with people who use this workflow before building.

Hypothesis 2

Implement a modern design with clear navigation paths.

Assumption to check: Poor user interface and navigation leading to frustration.

Validate with people who use this workflow before building.

Hypothesis 3

Provide users with tailored performance insights and comparison metrics.

Assumption to check: Lack of personalized insights and statistics.

Validate with people who use this workflow before building.

Hypothesis 4

Consider a freemium model with essential features free and premium features accessible via subscription.

Assumption to check: High pricing for the features offered which may deter users.

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

Mobile shot tracking is here! Track My Roll will give you a very good approximation of your shot's position and speed as it travels down the lane. If you can't get to Kegel or the IRTC, this is the next best thing. You can track YOUR roll when and how YOU want. Track My Roll harnesses the power of Computer Vision and Object Tracking. It can adjust for small camera movements so there's no need for setting up equipment or for lengthy calibrations. Track My Roll gives you shot graphs and valuable data including launch angle, break point, entry angle, ball position and speed. Graph multiple shots to a single set. Then export the graphs to your files or share them on your favorite social media sites. It can also store multiple bowler profiles and ball arsenals. Anyone who loves to get immersed in the technical aspects of bowling will want to have Track My Roll in their pocket! Track My Roll attempts to give you the best shot tracking possible in a highly unpredictable environment. Lighting, camera angle, camera movements and boundary settings can all affect the way the shot is tracked. In order to get the most accurate tracking possible please follow our Best Results guide. Note: ** The app may have difficulty tracking bowling balls with two highly contrasting colors, black and silver for instance. or a single light color like orange or light blue. Darker colored balls will general produce the best results.

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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
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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.