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
Michael Gannon's Ashtanga Yoga
THE NUMBER ONE ASHTANGA APP
$8.99 · In-app purchases
PRICE
$8.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
242 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's included15 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 Michael Gannon's Ashtanga Yoga: 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
Expand class offerings to include more styles.
Assumption to check: Limited class variety compared to other fitness apps.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a clearer navigation system with guided tutorials.
Assumption to check: In-app navigation can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Add social features like challenges and community boards.
Assumption to check: No social features for user interaction.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance audio quality and provide troubleshooting tips.
Assumption to check: Some users experience audio issues during classes.
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 NUMBER ONE ASHTANGA APP Ashtanga Yoga is one of the most popular types of yoga in the west today. More and more people are taking up this dynamic and powerful system of yoga to manage stress, improve their fitness and develop their spiritual life. Whether you're intermediate, advanced or a complete beginner, Ashtanga Yoga with Michael Gannon brings the magic of an Ashtanga Yoga class directly to your phone or tablet. Just put your phone down on your yoga mat and begin your practice. It’s like having your own teacher there with you. Some of the benefits of this great app include: • Detailed descriptions of the Ashtanga poses • Hi resolution photographs • Multiple images for each pose • Slideshow autoplay functionality with audio track – just put your phone down on the mat and go • Choice of ‘beginners’ or ‘intermediates’ commentary • Detailed introduction to the system and philosophy of Ashtanga Yoga • Video introductions and explanations from Michael Michael Gannon is one of the foremost Ashtanga yoga teachers in the world today. Yoga found Michael after 10 years of chaotic deal making in the American advertising and music business. After studying in India with the founder of Ashtanga yoga, the late Sri. K. Pattabhi Jois, he was authorised directly by Jois in 2001 to teach. He spends the year travelling and teaching workshops, trainings and retreats in The Americas, UK, Europe, Africa and Asia.
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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 Navigation
Expo
Redux
Axios
React Native Gesture Handler
React Native Reanimated
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.
