App Overview

String Note Tutor icon

String Note Tutor

Lachlan Dent · Music

String Note Tutor is a complete practice toolkit for beginner Violin, Viola, Cello, and Double Bass students, and a helpful companion for parents and teachers

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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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What's included15 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 String Note Tutor: 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

Incorporate social sharing and community features.

Assumption to check: Limited user engagement features compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Add gamification elements and progress metrics.

Assumption to check: Lack of progress tracking

Validate with people who use this workflow before building.

Hypothesis 3

Enable offline downloads for lessons.

Assumption to check: No offline access to lessons

Validate with people who use this workflow before building.

Hypothesis 4

Implement user reviews and ratings for lessons.

Assumption to check: No user feedback or rating system

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

String Note Tutor is a complete practice toolkit for beginner Violin, Viola, Cello, and Double Bass students, and a helpful companion for parents and teachers. Practice note recognition with flashcards, explore the instrument, experiment with the interactive fingerboard for your instrument, learn how notes relate to the piano keyboard, and build rhythms with the rhythm builder. String Note Tutor also features flashcards that listen to your playing, with tuning support, so you can answer each flashcard by playing your instrument (for violin, viola, and cello). For daily practice, String Note Tutor also includes a tuner designed especially for young learners (and their parents), along with a built-in metronome to help you stay in tune and on time. Best of all, everything is included in one app: no ads, no data collection, and no subscriptions. It was developed by Lachlan Dent, who holds PhD (Music Performance), Master of Music (Performance), and Master of Teaching degrees, in collaboration with other professional string teachers and performers. String Note Tutor is made by strings teachers for students, teachers, and parents. It features: Gradual Note Introduction: Start with the basics and gradually progress through first-position notes, fingerings, and string identification, making it easy for beginners to follow. High-quality Note Recordings: Listen to clear, precise recordings of each note to develop a strong auditory reference. Instant, Detailed Feedback: Receive immediate feedback that highlights which parts of your answer were correct or need improvement, so you can learn more effectively. Adaptive Learning Levels: Mastery-based Progression: Advance through levels by achieving a set number of consecutive correct answers, ensuring you master each step before moving on. Targeted Revision: Flashcards answered incorrectly are reintroduced more frequently during revision sessions, reinforcing areas where you need extra practice. Fun Sound Effects: Engage with playful sound effects when errors occur, making practice sessions enjoyable. No Hidden Costs or Data Collection:
There are no in-app purchases or subscriptions, and your privacy is fully respected. Download String Note Tutor today and start your musical journey with confidence!

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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
Zustand
Axios
React Navigation
BUILD KIT DIFFICULTY
Advanced

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.