App Overview

Star Scales Pro For Guitar icon

Star Scales Pro For Guitar

The EyeLand s.r.o. · Music

Learn Guitar Scales More Easily with your iPhone and Let your Unique Guitar Solos Shine

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.5
391 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's included17 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.

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.

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Star Scales Pro For Guitar: map the core Music 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

Offer a wider variety of scales and customization options.

Assumption to check: Limited scale options compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Simplify the purchasing process and clarify what each purchase includes.

Assumption to check: In-app purchases can be confusing

Validate with people who use this workflow before building.

Hypothesis 3

Design a more streamlined interface with better organization of features.

Assumption to check: User interface can feel cluttered

Validate with people who use this workflow before building.

Hypothesis 4

Incorporate social sharing options to connect with other guitarists.

Assumption to check: Lack of social features for sharing progress

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 Scales More Easily with your iPhone and Let your Unique Guitar Solos Shine. Star Scales is used by over 1 MILLION musicians worldwide!!! You’ve always dreamed of being a great guitar player like Jimi Hendrix, David Gilmour or Jimmy Page? All you ever wanted was playing like a star but incomprehensible scale charts are still holding you back? The Star Scales Pro app is here for you, to help you acquire proficiency and confidence in playing your guitar! Instead of teaching complicated charts, Star Scales Pro app quickly helps you to master scale patterns, improve speed and accuracy, and build up muscle memory at the same time. In Star Scales Pro app each scale comes with fingering and note names in all positions on the fretboard, making it easy to master a pattern. The Star Scales Pro app will teach you one scale, and all its patters, at a time. It allows you to concentrate on one scale in all keys, and practice it until you sharpen your skills. You can switch between different keys, tunings, or playback mode, as well as create your favorite scale patterns, or find a particular one using the search bar tool. Enhance your guitar skills - rock with Star Scales Pro! Features: • Contains all blues, rock and jazz guitar scales • Share one pattern of scale as image or all patterns of scale as pdf • Share exactly what you see • Zoom in/out of fretboard to view pattern • Rotate fretboard to vertical position in portrait view • Scroll over entire fretboard for better orientation • Practice with Random scale pattern generator • Easy orientation with Clustered scales • Display/hide remaining notes of a scale, to view scale pattern in context with all other notes of a scale, or by itself • Lowest string up option available for fretboard • Entire fretboard scale pattern view in landscape mode • Double length playback for root note of scale • Choose right or left hand fretboard • Scales for 6-string and 7-string guitars available • possibility to use custom backgrounds

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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
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BUILD KIT DIFFICULTY
Starter

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.