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.
AumChord is an Ambient Chord Synthesizer with seven pads, a joystick and instant sound
$3.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Your first Build Kit is free with a verified email.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for AumChord: map the core Music workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
AumChord is an Ambient Chord Synthesizer with seven pads, a joystick and instant sound. Pick a key and every pad plays a chord that fits, so you can make music without knowing any theory. SEVEN PADS, ONE JOYSTICK Seven chord pads, one for each step of the scale, in all 12 keys, major or minor. Hold a pad and push the joystick to change the chord: add a 7th or a 9th, suspend it, strip it down to a power chord, open up the voicing or jump an octave. Switch to mono for single-note lines, or let the arpeggiator play the notes of a held chord in a shuffled order. AumChord is an instrument. Anyone can play it in a minute, and the more you learn its moves, the more it gives back. SOUND ENGINE 17 built-in sounds from AumChord's own synth engine, each with its own filter, reverb and delay. Switch between them at any time. New sounds arrive with updates, so there is always something new to play with. RECORD, LAYER, KEEP Pick a length of 1, 2, 4 or 8 bars, turn on the metronome and record. Stack up to three loop layers, each with its own volume adjustment. Save loops to your library or share them as WAV files to use in your own projects. PLAY EVERYTHING ELSE AumChord is also a controller. Every chord you play goes out as a MIDI signal, so the same seven pads and joystick can play any synth you own: another app on your iPhone, or a full studio setup on your computer over USB. One finger, full chords, in your own sounds. BUY ONCE, KEEPS GROWING No subscription, no in-app purchases, no account. Improvements and new sounds arrive as free updates.
Written user reviews are not shown here. Check current App Store reviews >
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
Assumption to check: Limited chord library compared to other apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Minimal tutorials or guidance for new users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No offline functionality
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
Not assessed in a Build Kit yet.
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.