App Overview

Backrooms Piano icon

Backrooms Piano

LEWIS GARETH K LE VAL · Music

Step out of reality and into a sample-based instrument built for the space between rooms: faded pianos, uneasy pads, room tones and half-remembered melodies

$5.99 · In-app purchases

PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.9
7 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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A product spec, screen plans, and build steps for your coding agent.

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What's included16 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 Backrooms Piano: 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 sound library to include more diverse genres and instruments.

Assumption to check: Limited sound selection

Validate with people who use this workflow before building.

Hypothesis 2

Add options for users to share compositions on social media.

Assumption to check: No social sharing features

Validate with people who use this workflow before building.

Hypothesis 3

Implement offline mode for downloaded sounds.

Assumption to check: No offline access

Validate with people who use this workflow before building.

Hypothesis 4

Allow users to customize the keyboard layout and sound settings.

Assumption to check: Limited user customization

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

Step out of reality and into a sample-based instrument built for the space between rooms: faded pianos, uneasy pads, room tones and half-remembered melodies. Made for liminal space, dreamcore and the particular dread of a place that's empty when it shouldn't be. Whether you're scoring analogue horror, building dreamcore loops, or just want a keyboard that sounds wrong in interesting ways, Backrooms Piano gives you a deep, atmosphere-first instrument designed around four custom effects. SOUND DESIGN, NOT JUST SAMPLES Presets are grouped into Keys, Pads, Soundscapes and Ambience, each one built to sit somewhere between familiar and not quite right. FOUR EFFECTS BUILT FOR THE GENRE LAPSE: tape-motor drift and seasick wobble, like old machinery losing its grip WEAR: ages the sound, rolling off the top end and adding instability and dust ROOM: from close and dry to a washed-out, oversized reverb DISTANCE: pulls the source away, softening the highs and revealing a filtered echo behind it FULL PERFORMANCE CONTROL A velocity-sensitive, multi-touch keyboard with octave shifting and note latch for hands-free drones and pads. Full ADSR shaping on pitched presets, so you can go from a natural attack to slow, creeping swells. BUILT FOR IPHONE AND IPAD Backrooms Piano runs as a standalone app on both iPhone and iPad, so you can explore ideas, audition presets and play live wherever you are. IMPORTANT: RECORDING REQUIRES AN AUv3 HOST The standalone app is for playing and exploring sounds. It does not record, sequence or save what you play on its own. To record your performance, sequence it, or automate parameters, you need to open Backrooms Piano as an AUv3 instrument inside a host app such as GarageBand, AUM, Cubasis, Logic Pro, or any other AUv3-compatible host. If you want to keep what you play, make sure you have a host app installed before you buy. More presets are on the way in future updates. Disclaimer: This app and its associated content are independent creations inspired by the Backrooms internet phenomenon. They are not affiliated with, endorsed by, sponsored by, or associated with A24, Kane Parsons, The Backrooms feature film, or any of their respective rights holders.

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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.