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
IQ Boost: Brain Trainer, Games
Train your brain with IQ Boost - the ultimate brain trainer with cognitive games, logic puzzles, and memory challenges designed for adults
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
9,300 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 included17 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 IQ Boost: Brain Trainer, Games: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Train your brain with IQ Boost - the ultimate brain trainer with cognitive games, logic puzzles, and memory challenges designed for adults. Elevate your thinking, sharpen your focus, and boost your mental performance with AI-powered training. COGNITIVE TRAINING FOR ADULTS Daily brain training games that improve IQ, enhance memory, and strengthen focus. Our riddles and logic puzzles challenge your mind while impulse control exercises improve cognitive performance. KEY FEATURES - IQ Test & Brain Games - Scientifically-designed cognitive training - Memory Games - Boost retention and recall with memory challenges - Logic Puzzles - Enhance problem-solving and critical thinking skills - Focus Training - Improve concentration and mental agility - Mind Games for Adults - Progressive difficulty from easy to expert - AI-Powered - Personalized training adapts to your cognitive level BRAIN TRAINING THAT WORKS - Memory improvement through repetition and pattern recognition - Logic training with riddles and problem-solving challenges - Focus enhancement to fight impulse and distractions - IQ boost through cognitive skill development - Thinking exercises that elevate mental performance TRACK YOUR PROGRESS Monitor your cognitive growth with detailed stats. Watch your IQ, memory, logic, and focus scores improve over time. PERFECT FOR ADULTS SEEKING - Daily brain training routine - Memory improvement - IQ test preparation - Cognitive skill enhancement - Logic puzzle challenges - Mental focus training Elevate your mind with brain games that combine fun riddles, memory tests, and logic puzzles. Whether you're preparing for an IQ test or maintaining cognitive health, IQ Boost offers the brain training adults need for peak mental performance. SUBSCRIPTION INFORMATION Length: Weekly / Yearly Features: Full access to all cognitive games, daily brain training challenges, IQ tests, memory puzzles, logic riddles, progress tracking, and upcoming content updates focused on enhancing your mental focus and thinking skills. Payment will be charged to your Apple ID account upon confirmation. Subscription auto-renews unless canceled at least 24 hours before renewal. Terms of Use: https://sites.google.com/view/iq-boost-ai/terms-of-use Privacy Policy: https://sites.google.com/view/iq-boost-ai/privacy-policy Download now and start your cognitive training journey!
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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
Introduce new games regularly and update content.
Assumption to check: Limited game variety leading to user boredom
Validate with people who use this workflow before building.
Hypothesis 2
Enhance progress tracking features with more detailed analytics.
Assumption to check: Difficulty tracking progress over time
Validate with people who use this workflow before building.
Hypothesis 3
Offer more value in free tier to enhance user retention.
Assumption to check: Monetization strategies can feel forced
Validate with people who use this workflow before building.
Hypothesis 4
Optimize game loading performance and user experience.
Assumption to check: Inconsistent loading times for games
Validate with people who use this workflow before building.
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
react-native-chart-kit
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.
