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
TrainingPeaks: Plan Train Lift
The world’s most complete training platform for coaches and athletes to plan, lift, and train.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
12,709 ratings · Top 15%
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 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 TrainingPeaks: Plan Train Lift: map the core Health & Fitness 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 a wider range of exercises and custom workouts.
Assumption to check: Limited exercise variety compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify navigation and improve user onboarding.
Assumption to check: Complex navigation structure.
Validate with people who use this workflow before building.
Hypothesis 3
Add social sharing and challenges to engage users.
Assumption to check: Lack of social features.
Validate with people who use this workflow before building.
Hypothesis 4
Implement robust data synchronization with real-time updates.
Assumption to check: Inconsistent data syncing across devices.
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
The world’s most complete training platform for coaches and athletes to plan, lift, and train. Use TrainingPeaks to maximize your potential. Connect the ability to plan, lift, and train for your endurance events and adventures. Whether you are training to run a half marathon, finish a Gran Fondo, or complete a full-distance triathlon, TrainingPeaks provides the ultimate tools you need for your journey. Simply connect with your coach or load a training plan to fill your schedule and get started. TrainingPeaks for Athletes • Flexible planning to fit your life: Easily adjust your schedule and sync your training with your daily routine. • Actionable Insights to keep you on track: Data-driven feedback that helps you understand your progress and stay motivated. • Build strength to be unbreakable: Integrated strength training plans designed to improve durability and performance. • Ride inside on TrainingPeaks Virtual: Experience world-class indoor training and ride with a global community. • Any sport, any device, any time: Seamlessly sync with your favorite wearable or head unit, ensuring your data is always where you need it. TrainingPeaks for Coaches • Advanced tools for planning: Annual season planning and individual workout creation tools to make planning clear and quick. • Time-Saving Tools to Streamline Your Coaching: Keep your athletes on track with powerful performance dashboards, easy-to-understand compliance scores, notifications, and in-workout commenting. • Look pro. Feel pro. Manage payment, athlete groups, schedules and communication all in one streamlined tool. • Any sport, any device, any time: Athletes seamlessly sync with your favorite wearable or head unit, ensuring data is always where you need it. Build community and engagement on TrainingPeaks Virtual: Keep athletes engaged year-round with the only indoor cycling platform designed for coaching. Go to trainingpeaks.com to sign up for your coach account. Trusted Partner of: USA Cycling, USA Triathlon, British Cycling, British Triathlon, AusTriathlon, Road Runners Club of America, INEOS Grenadiers Cycling Team and more Privacy Policy: https://home.trainingpeaks.com/privacy-policy Terms of Use: https://home.trainingpeaks.com/terms-of-use
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
Recharts
Zustand
React Navigation
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.
