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
TriadsPro
Learn guitar triads the smart way with TriadsPro – the ultimate app for guitarists who want to finally understand and master triads, inversions, and progressions without the overwhelm of scattered PDFs and YouTube videos.
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
2 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 included18 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 TriadsPro: 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 lesson library with diverse topics and skill levels.
Assumption to check: Limited variety of lessons offered
Validate with people who use this workflow before building.
Hypothesis 2
Include quizzes and interactive exercises to enhance learning.
Assumption to check: No interactive exercises for practice
Validate with people who use this workflow before building.
Hypothesis 3
Add forums or chat features for user interaction and peer support.
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 4
Implement a more robust progress tracking system with detailed analytics.
Assumption to check: Inconsistent progress tracking
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
Learn guitar triads the smart way with TriadsPro – the ultimate app for guitarists who want to finally understand and master triads, inversions, and progressions without the overwhelm of scattered PDFs and YouTube videos. Why Guitarists Love TriadsPro • Instant Triad Visualization Pick any key and instantly see every major and minor triad, plus 1st and 2nd inversions on a clear, interactive fretboard. No more flipping through chord charts. • Build Real Chord Progressions Use the Nashville Number System to create and transpose triad-based progressions in seconds. Perfect for learning songs faster and switching keys on the fly. • Master Movable Triad Shapes “Hack-it” mode teaches repeatable voicing patterns you can slide anywhere on the neck. Play triads in any key without memorizing hundreds of shapes – the secret to pro-sounding playing. • Jam Along to Real Songs Play along with backing tracks featuring simple triad progressions. One tap opens four fretboard views showing exactly which triads to play – no pausing or guessing. • Memorize Triads with a Fun Game Test yourself by identifying triads on the fretboard and naming them. The fastest way to lock triads and inversions into muscle memory. Perfect for Worship, Pop, Rock & Jazz Guitarists Whether you’re playing modern worship songs, pop hits, or jazz standards, TriadsPro helps you use triads musically and confidently. Key Features • Clean, beautiful interactive fretboard • Major & minor triads + inversions in every key • Nashville Number System progressions • Movable triad voicings & shapes • Backing tracks with visual triad guides • Memorization game with instant feedback • Offline access – no internet required • One-time purchase – no subscription ever Stop struggling with theory overload. Download TriadsPro today and finally make guitar triads work for you. Works on iPhone, and iPad iOS 16 or later required Perfect for guitarists looking to: • Learn guitar triads fast • Master triad inversions • Play chord progressions better • Use movable triad shapes • Understand Nashville numbers on guitar • Improve worship or band playing © 2025 TriadsPro. All rights reserved.
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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
Supabase
Zustand
React Navigation
react-native-video
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.
