App Overview

ChordPond icon

ChordPond

Steffen Mølgaard Larsen · Music

CHORDPOND - Visual Chord-Tile Sequencer

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
5.0
4 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 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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Free quick prompt For a smaller starting point

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 ChordPond: 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

Expand chord library and suggest progressions based on user input.

Assumption to check: Limited chord options and progressions

Validate with people who use this workflow before building.

Hypothesis 2

Add options for users to share their progressions on social media.

Assumption to check: No social sharing features

Validate with people who use this workflow before building.

Hypothesis 3

Implement more advanced visualization tools for complex chords.

Assumption to check: Difficulty in visualizing complex chord structures

Validate with people who use this workflow before building.

Hypothesis 4

Enable offline access to saved progressions and chords.

Assumption to check: Lack of offline functionality

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

CHORDPOND - Visual Chord-Tile Sequencer CHORDPOND is a visual MIDI composition tool for iPad and iPhone where chord progressions become paths through chord tiles. Drop chords onto a canvas, connect them with paths, hit play, and hear them instantly through the built-in Frog Synth - or route MIDI to your favorite AUv3 instruments, external synths, or DAW. Built for songwriters, producers, performers, and curious explorers, ChordPond turns harmony into something you can see, touch, and rearrange in seconds. Key Features: - Visual chord tiles on a freeform canvas - Built-in AUv3 Synth for instant sound - Load and play AUv3 instruments directly inside ChordPond - Scale-aware chords, tensions, inversions, and bass control - Hold, Stutter, Arp, Roll, Motif, and Random chord modes - Draw paths between chords with per-node duration, gate, and ratchet settings - Scene Automation for building complete song arrangements - Multiple scenes per project - 20+ scales including modal, jazz, world, and experimental scales - Per-note probability, velocity, micro-timing, and ratchets - MIDI export - Ableton Link sync - AUv3 MIDI plugin for Logic Pro, AUM, Cubasis, Loopy Pro, and more - CoreMIDI support for external instruments - Shared projects between standalone and AUv3 versions - Designed for iPhone, iPad, and Mac (Catalyst) Designed for ideas. Built for progression.

Written user reviews are not shown here. Check current App Store reviews >

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.