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
CutCoach
CutCoach is the smarter way for combat athletes to cut up to 10% of their bodyweight, safely and effectively
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
819 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 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 CutCoach: 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 powerful filtering and recommendation system based on user preferences.
Assumption to check: Users often find it difficult to find relevant training plans.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance progress tracking with more detailed analytics and insights.
Assumption to check: Limited tracking features compared to dedicated fitness apps.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the subscription structure and provide clear benefits for each tier.
Assumption to check: Subscription model may confuse users with multiple tiers.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce forums or chat features to foster user interaction and motivation.
Assumption to check: Lack of community features for user 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
CutCoach is the smarter way for combat athletes to cut up to 10% of their bodyweight, safely and effectively. Whether you’re a wrestler, MMA fighter, or boxer, the app gives you a personalized, research-backed plan designed to help you cut weight while staying strong and focused. Why CutCoach? - Personalized plans tailored to your body, goals, and competition date - Research-backed nutrition and hydration strategies - Full meal plans - Progress tracking for weight, water intake, and macros - Safer, easier cuts that reduce the risk of burnout and dehydration Built for combat sports, CutCoach helps you approach competition week with confidence. No guesswork. No stress. Just proven strategies to help you hit your target weight and perform at your best. If you have an ideas or questions, please email us at [email protected] NOTE: CutCoach does not provide medical advice. All plans and recommendations are for informational purposes only. Always consult a qualified professional before beginning any weight cut or nutrition program. *ALL FEATURES IN THE APP REQUIRE A SUBSCRIPTION TERMS: https://www.cutcoach.app/terms
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
Supabase
Zustand
react-native-svg
expo-linear-gradient
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.
