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
Tennis Australia Technique App
Tennis Australia Technique App is designed for the coach, teacher, parent and player to assist in technique development
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
2 ratings · Top 5%
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 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.
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 Tennis Australia Technique App: 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
Offer more techniques and user-generated content.
Assumption to check: Limited technique variety compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more intuitive navigation structure.
Assumption to check: In-app navigation can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Introduce tiered pricing or freemium model.
Assumption to check: High price point for full access
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing and community practice tracking.
Assumption to check: Lack of community 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
Tennis Australia Technique App is designed for the coach, teacher, parent and player to assist in technique development. Major features summary * Record your players strokes in HD * Compare your players to reference strokes: - Side by side - Overlay - Set synchronisation point for comparison * Analyse your players strokes using the annotation tools to highlight your analysis. Draw lines, measure angles, insert text and shapes, record voice over and take screen shots * Time Delay – Use this function in your sessions to delay the action by 5–30 secs so players can view themselves and get immediate feedback * Learn mode – model strokes for all stages (Red, Orange, Green and Yellow level) for all strokes in video and images * Manage your files – rename, trim, split, delete, save to the cloud and the camera roll * Communicate your analysis via email, Youtube, DropBox and Camera Roll * Speedometer – measure the speed of your players shots ---------------------------------------------- FEEDBACK Experiencing issues? Have comments or suggestions for future features? Please contact us at [email protected]
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
Zustand
react-navigation
expo-video
react-native-chart-kit
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.
