App Overview

IbanezTuner icon

IbanezTuner

HOSHINO GAKKI CO., LTD. · Music

Download the Ibanez Tuner app and say goodbye to low-end tuning mystery.

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
2.8
4 ratings · Below Average

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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> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for IbanezTuner: 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

Implement advanced pitch detection algorithms for better accuracy.

Assumption to check: Users report issues with accuracy in pitch detection

Validate with people who use this workflow before building.

Hypothesis 2

Add more tuning modes (e.g., chromatic, guitar, bass) and customizable settings.

Assumption to check: Limited features compared to other tuning apps

Validate with people who use this workflow before building.

Hypothesis 3

Redesign UI for better usability and visual appeal.

Assumption to check: User interface is not user-friendly

Validate with people who use this workflow before building.

Hypothesis 4

Provide clearer information on features behind paywall and offer trials.

Assumption to check: In-app purchases are not clearly communicated

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

Download the Ibanez Tuner app and say goodbye to low-end tuning mystery. Nobody can top Ibanez’s world-respected experience with multi-stringed guitars and basses that feature down-tuned and super low strings. Now, Ibanez introduces the Ibanez Tuner, a new and powerful app that takes the frustration out of tuning lower-end strings. ==Unique Features== ● Original algorithm and filter Engineered especially for seven, eight and nine-string guitars as well as five, six and seven-string basses, the Ibanez Tuner app effortlessly reads the lowest of low-end notes thanks to a unique algorithm and built-in independent filter for each instrument tuning mode. ● Extra-detailed tuning in Zoom Mode Zoom in for super-detailed tuning with Ibanez Tuner. In addition to featuring an easy-to-read tuning display, Ibanez Tuner boasts an additional level of precision with its Zoom Mode. Don't ruin a great recording or live performance with out-of-tune low notes! Turn on the Zoom Mode to make sure your low-end strings true. ● Restring your ax in seconds with Ibanez Tuner’s open note guide tones. Simply tap a string’s individual note button on Ibanez Tuner app and sound out the open note. Hearing a guide tone while winding and restringing your instrument cuts your work in half and helps to identify tricky low-end frequencies while tuning. ● Save your alternate tunings Ibanez Tuner has over 10 super-useful alternate tuning presets. Have a secret weapon alternate tuning of your own? Edit, create and save your tuning in Ibanez Tuner’s user preset library. ==Tuning mode preset== Works with - Chromatic - Guitar: 6, 7, 8, 9, 12 strings and Tenor - Bass: 4, 5, 6, and 7 strings - Ukulele: Soprano, Concert, and Tenor - Mandolin - Banjo: Tenor, Plectrum, and 5 strings Typical alternate tunings, including Half step down, Whole step down, Drop D, Open G/A/E/D, DADGAD, and Baritone ==Other features== - Adjustable input sensitivity - A4 note frequency from 415Hz to 465Hz with 1Hz step - Auto sleep ON/OFF - Selectable needle response speed, normal or slow - Selectable notation, flat or sharp - Selectable temperament; equal, just major or just minor with key select - Accuracy +/-0.1 cent or less - Eye-friendly high contrast needle - Reel style note movement ==Notes== - This app uses Google Analytics. Read the following privacy policy and agree before downloading this app. www.google.com/policies/privacy/partners/ - This app uses the external microphone on your device. - If background noise is too loud, Ibanez recommends connecting your instrument to earphones/microphone or lightning jack by using authorized cables for connecting iPhone and instruments. ■ Operating environment OS: iOS8 or later Model: iPhone4S or later

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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.

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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.