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
OTG Play Shift
OTG (Occupational Therapy Games) is an engaging, interactive app designed to help children build essential visual and executive functioning skills—the foundation for strong cognitive development.
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
13 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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 OTG Play Shift: map the core Education 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 course offerings and incorporate different teaching methods.
Assumption to check: Limited course variety may not meet diverse learning styles.
Validate with people who use this workflow before building.
Hypothesis 2
Implement adaptive quizzes that adjust difficulty based on user performance.
Assumption to check: Some users may find the quizzes too challenging or not adaptive.
Validate with people who use this workflow before building.
Hypothesis 3
Add community features for discussion and collaboration.
Assumption to check: Lack of social features to engage with peers.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download lessons for offline access.
Assumption to check: No offline access to courses or lessons.
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
OTG (Occupational Therapy Games) is an engaging, interactive app designed to help children build essential visual and executive functioning skills—the foundation for strong cognitive development. Through structured, game-based activities, OTG supports the development of: - Visual tracking and visual discrimination - Attention and focus - Planning and sequencing - Problem-solving and working memory OTG also includes activities that support speech and language development, making it a versatile tool for occupational therapists, speech-language pathologists, educators, and parents. Key Features - Interactive exercises targeting visual perception and visual-motor integration - Games designed to strengthen planning, sequencing, and working memory - Activities that support speech, language, and communication development - Structured gameplay aligned with therapeutic and educational goals Game Categories Visual Skills - Left and Right Recognition - Letter Reversal - Shape Finder - Seek and Find Executive Functioning - Concentration - Sequencing - Pattern Coding - Time Teacher Early Literacy - Connect the Dots - Picture Spelling Sequence - Missing Letter - Color by Letter
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-navigation
expo-av
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.
