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
Aptitude Test Trainer
Are you preparing for an aptitude test or just looking to exercise your brain? Either way, this app is for you!
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.6
8 ratings · Top 50%
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
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 Aptitude Test Trainer: 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
Incorporate a wider range of question types and categories.
Assumption to check: Limited question variety which may not cover all test types.
Validate with people who use this workflow before building.
Hypothesis 2
Design a more streamlined and user-friendly interface.
Assumption to check: User interface can feel cluttered and overwhelming.
Validate with people who use this workflow before building.
Hypothesis 3
Add a forum or discussion board for users to share tips and strategies.
Assumption to check: No community features for peer learning or discussion.
Validate with people who use this workflow before building.
Hypothesis 4
Provide comprehensive explanations and resources for wrong answers.
Assumption to check: Lack of detailed feedback on incorrect answers.
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
Are you preparing for an aptitude test or just looking to exercise your brain? Either way, this app is for you! Preparation can be the difference between passing and failing your aptitude test. Give yourself the best preparation possible with the Aptitude Test Trainer. Practice more than 2600 questions with explained solutions. Track your progress and compare your score to other users. YOU choose how to prepare: 1: Select practice or test mode 2: Choose the question categories to train 3: Select the number of questions 4: Start your preparation! Features: - Detailed solution/explanation to each question - 2600 different questions - Questions resemble real aptitude test questions - Customized tests - Score progression chart - Answer statistics - Compare your score with others - See how others answered a question - Two modes of training Question categories: - Spatial Ability - Deductive Reasoning - Inductive Reasoning - Abstract Reasoning - Numerical Reasoning - Number series - Numerical Word Problems - Mathematical Knowledge - Basic Arithmetic - Numerical Reasoning - Critical Thinking - Verbal Reasoning - Word Analogy - Word Relationships - Vocabulary - Grammar & Spelling - Coherence & Cohesion - Reading Comprehension - Code Breaking - Mechanical Comprehension - Electronics Knowledge - Mechanical Knowledge - Tools
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
TypeScript
react-navigation
@react-native-async-storage/async-storage
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.
