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
PracticeMix
PracticeMix turns your routine mix into a programmable practice tool
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 PracticeMix: 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
Implement a smart recommendation engine based on user preferences and performance.
Assumption to check: Users have difficulty finding suitable practice drills
Validate with people who use this workflow before building.
Hypothesis 2
Visualize progress with engaging graphs and milestones.
Assumption to check: Progress tracking can be tedious
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription tiers and clearly highlight benefits.
Assumption to check: Subscription features can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Add features for users to share progress and tips within a community.
Assumption to check: Lack of community engagement
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
PracticeMix turns your routine mix into a programmable practice tool. Mark the sections you want to drill — tumbling, pyramid, full-out — set how many reps, how long to rest between, and how long the lead-in countdown should be. Then hit play and let the app run the practice while you coach. PROGRAMMABLE PRACTICE • Import any audio mix from your Files • Trim section markers with a waveform editor • Build practice blocks with reps, rest, and lead-in per section • Save templates per team LIVE RUN MODE • Large play / pause / skip / restart controls — designed for fast-moving practices • Visual lead-in countdown before each rep • Auto-restart or manual restart per block • Jump to any block in the queue • Estimated session time at a glance BUILT FOR THE GYM FLOOR • Big buttons, high-contrast UI — readable from across the mat • One-tap skip, restart, and previous-block • Section progress and total reps always visible LOCAL ONLY • Your mixes and templates stay on your device • No accounts, no cloud, no analytics • Works offline at any gym Made by a cheer coach for cheer coaches. No fluff — just the controls you actually need to run a practice.
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
Victory Native
React Navigation
Axios
BUILD KIT DIFFICULTY
Intermediate
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.
