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.
App Overview
The Golf Tracer
Trace your golf shots! All you need is your phone
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.8
1,608 ratings · Top 50%
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 included18 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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for The Golf Tracer: 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
Include detailed analytics and insights on performance.
Assumption to check: Limited features for shot analysis
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more streamlined design with better spacing.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 3
Enhance GPS tracking algorithms for better precision.
Assumption to check: Inconsistent GPS accuracy
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing options to compare scores with friends.
Assumption to check: Lack of social features
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
Trace your golf shots! All you need is your phone. Used by top-ranked pros, social media influencers, and teaching professionals around the world. Golf Tracer is the most easy-to-use, flexible, and beautifully simple golf tracer app in the world! Capture or upload your golf videos and easily trace your shots! Customize your tracers, add yardage, and more! Visualize your shots like never before. Use it as a learning tool or for entertainment on the course or at the range. Features include: • MANUAL TRACER: full control over your tracers • TRACER STYLES: choose any color or style (fireball, USA, electric & more) • SHOT YARDAGE: add yardage like the pros • EASY EXPORT: save and share videos anywhere • SWING SEQUENCE: create a swing sequence with one tap • VIDEO LOOPER: mesmerizing back and forth videos • OVERLAYS: add crowds, scoreboards & more • GOLF EMOJIS: add custom golf emojis • VIDEO LIBRARY: save & edit your content in one place Are you ready to take your golf experience to the next level? Get started today with Golf Tracer! --- Tracer Usage Tips: Keep your phone stable, film until the ball lands, and follow our in-app guides for the best results. If you are having any trouble getting a good result, you can always reach out to our team for immediate feedback. --- Have an idea, question, or feedback? Drop us a line at [email protected] --- • Terms of use: https://blog.gottagolf.com/2015/03/01/golf-tracer-app-terms/ • Privacy policy: https://blog.gottagolf.com/2015/03/01/golf-tracer-app-privacy-policy/
Written user reviews are not shown here. Check current App Store reviews >
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
React Native
Expo
axios
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expo-location
@react-native-async-storage/async-storage
BUILD KIT DIFFICULTY
Advanced
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.
