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
Hand Mudras
Welcome to Hand Mudras! An easy and inviting way to explore and regularly practice hand Mudras, choosing from a universe of 108 gestures offered.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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 Hand Mudras: 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 database with user-generated content or community contributions.
Assumption to check: Limited variety in mudras available
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate guided sessions or video tutorials for each mudra.
Assumption to check: Lack of interactive features
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription tiers and clearly highlight value proposition.
Assumption to check: Subscription confusion
Validate with people who use this workflow before building.
Hypothesis 4
Add features for users to share their favorite mudras on social media.
Assumption to check: No social sharing options
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
Welcome to Hand Mudras! An easy and inviting way to explore and regularly practice hand Mudras, choosing from a universe of 108 gestures offered. Each gesture is described carefully and in detail, including: • clear instructions and image for you to perform each hand gesture with precision; • cautions; • main benefits cultivated by the practice; • a list of mudras with similar effects. You have 4 easy ways to access these gestures: Daily Mudra - the Home screen shows every day a different Mudra image for you to practice. Index of Mudras - shows a list of all Mudras organized by group families from which you can access and browse the gestures. You can also search for a word or phrase and browse the Mudras related to the phrase. Gallery - shows all Mudras images organized by group families. You can select Mudras associated with specific Chakras, Elements and Systems. Practicing Now - you can place here the Mudras you are practicing for quick access and easy control of your regular practice. You can also add to this list a gifted mudra, by clicking in random selection. As the practice of these mudras are incorporated into your daily life, you naturally begin to experience and share with others a greater sense of integral health and wellbeing !!!
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-reanimated
@supabase/supabase-js
BUILD KIT DIFFICULTY
Starter
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.
