App Overview

Dobro Tuner Simple icon

Dobro Tuner Simple

Pavel Nikitenko · Music

Simple dobro tuner to tune up your dobro

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
3.7
13 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.

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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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> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for Dobro Tuner Simple: 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

Add more instrument presets and custom tunings

Assumption to check: Limited tuning options compared to competitors

Validate with people who use this workflow before building.

Hypothesis 2

Implement a modern design with smooth animations

Assumption to check: User interface can feel outdated

Validate with people who use this workflow before building.

Hypothesis 3

Include options to share tunings or achievements on social media

Assumption to check: No social sharing features

Validate with people who use this workflow before building.

Hypothesis 4

Simplify the calibration process with clear instructions and visual guides

Assumption to check: Calibration 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

Simple dobro tuner to tune up your dobro. This is for a standard 6-string dobro in GBDgbd dobro tuning. Tuning your dobro can be a difficult task for you if you are just beginning dobro. The good news is, the more you do it, the easier it becomes. A nicely tuned dobro can make your music sound a lot better and help you greatly while you're are just getting the hang of finger placement for notes. Touch the note for the string you want to tune and then turn the tuning pegs on your dobro and match it up with the note that is being played. Tip: Make several passes tuning each of the strings. For example you might have noticed that if you have tuned all the strings once, and then back to the first one you tuned, it might be off a little bit. This is because you are increasing or decreasing the tension on each of the strings as you tune it and the instrument's body might bend ever so slightly due to this difference in tension. This causes the other strings to slightly change in pitch. So make sure you keep on checking and tuning the strings until all are in tune, so make several passes. Any questions using the App? Write [email protected] and we we'll get back to you promptly. Or visit our forum at www.tuneinstrument.com . If you need to tune other instruments just simply have a look into our other applications: Guitar Tuner Simple, Violin Tuner Simple, Cello Tuner Simple, Banjo Tuner Simple, Mandolin Tuner Simple, Double Bass Tuner Simple, 12-String Guitar Tuner Simple, Viola Tuner Simple, Ukulele Tuner Simple, Bass Tuner Simple. Or visit us at: www.tuneinstrument.com .

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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
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expo-av
react-native-svg
@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.