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
ISA Arborist Exam Prep
PASS YOUR ISA CERTIFIED ARBORIST EXAM
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
78 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.
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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 included16 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 ISA Arborist Exam Prep: map the core Business 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 quizzes and interactive learning modules.
Assumption to check: Limited interactive content for study materials
Validate with people who use this workflow before building.
Hypothesis 2
Add a feature for customized study schedules based on user progress.
Assumption to check: Lack of personalized study plans
Validate with people who use this workflow before building.
Hypothesis 3
Integrate forums or chat features for peer interaction.
Assumption to check: No community or peer support
Validate with people who use this workflow before building.
Hypothesis 4
Simplify subscription options and clarify benefits.
Assumption to check: In-app purchases can be confusing
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
PASS YOUR ISA CERTIFIED ARBORIST EXAM Study smarter with the most comprehensive ISA exam prep app available. Master all 10 exam domains with over 2,000 practice questions, realistic exam simulations, and intelligent study modes designed to help you succeed. COMPLETE EXAM COVERAGE Covers all 10 ISA Certified Arborist Domains: • Tree Biology & Physiology • Tree Identification & Selection • Soil Management • Installation & Establishment • Pruning • Diagnosis & Treatment • Trees & Construction • Tree Risk Assessment • Safe Work Practices • Urban Forestry FIVE POWERFUL STUDY MODES • Practice Mode – Learn with instant feedback and detailed explanations • Test Mode – Simulate real exam conditions with end-of-quiz results • Survival Mode – Challenge yourself with one-mistake elimination • Review Mistakes – Automatically focus on questions you got wrong • Fresh Questions – Practice only unseen questions FULL EXAM SIMULATION Experience the real ISA exam before test day: • 200 randomly selected questions from all domains • 210-minute timed session • 76% passing score (like the actual exam) • Realistic pacing and pressure TRACK YOUR PROGRESS • Visual performance charts showing score trends • Detailed breakdown by domain • Identify weak areas to focus your study • Monitor your improvement over time • Estimate your readiness for the real exam FULLY CUSTOMIZABLE • Choose 10–300 questions per session • Configure custom exam parameters • Shuffle questions and answers • Adjust time limits and passing scores • Study at your own pace SMART LEARNING FEATURES • Detailed explanations for every question • Bookmark difficult questions for review • Search and browse all 2,000+ questions • Dark mode support • Offline access – study anywhere Disclaimer: This app is not affiliated with or endorsed by the International Society of Arboriculture (ISA). All questions and materials are original content created to help users prepare for arborist certification exams. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gist.github.com/alexanderpct/44776e0d1dc9ec4aac10d7597079fecd
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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 Native
Expo
React Navigation
Axios
AsyncStorage
Shadcn/ui
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.
