App Overview

Magic Piano: game by Smule icon

Magic Piano: game by Smule

Smule · Music

From Bruno Mars to Mozart, play the hottest songs!

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
3.5
19,293 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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A product spec, screen plans, and build steps for your coding agent.

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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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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 Magic Piano: game by Smule: 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

Provide more free songs and features to enhance user retention.

Assumption to check: Limited free content and features

Validate with people who use this workflow before building.

Hypothesis 2

Implement a practice mode with slower note speeds for learning.

Assumption to check: Inconsistent note timing for beginners

Validate with people who use this workflow before building.

Hypothesis 3

Offer an ad-free experience for subscribers with more engaging features.

Assumption to check: Frequent ads disrupt gameplay

Validate with people who use this workflow before building.

Hypothesis 4

Introduce more tutorials and practice sessions for skill improvement.

Assumption to check: Difficulty in achieving high scores

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

From Bruno Mars to Mozart, play the hottest songs! Relax your soul with beautiful sounds of piano while playing your favorite tunes on original #1 piano rhythm game. Featured by TIME, New York Times and Apple's Best New Apps. Features - New hits added daily - 1000+ hits across genres - Rhythm and tempo control - recreate the music! - Pair with real vocalists on Smule Jams mode - Instrument options: classic, harpsichord, Funky 80's synth, organ and more Current most popular songs (all genres): ------- POP ------- ** All of Me - John Legend ** On Top of the World - Imagine Dragons ** Safe and Sound - Capital Cities ** Counting Stars - One Republic ** Blurred Lines - Robin Thicke, ft. T.I. & Pharrell Williams ** Wake Me Up - Avicii ft. Aloe Blacc ** Treasure - Bruno Mars ** Cups - Anna Kendrick ** Stay - Rihanna ft. Mikky Ekko ** Bubbly - Colbie Caillat ** What Makes You Beautiful - One Direction ** Moves Like Jagger - Maroon 5 ------ ROCK ------ ** Eye of the Tiger - Survivor ** Rock You Like a Hurricane - Scorpions ** More Than Words - Extreme ** The Final Countdown - Europe ** Bring Me to Life - Evanescence ----- CLASSICAL---- ** The Magic Flute - Mozart ** Moonlight Sonata - Beethoven ----- MOVIES AND MUSICALS -- ** Phantom of the Opera ** Jurassic Park Theme ----- COUNTRY ----- ** Friends in Low Places - Garth Brooks ** Before He Cheats - Carrie Underwood ------ R&B ------ ** I Believe I Can Fly - R. Kelly ** Hero - Mariah Carey ** Respect - Aretha Franklin  Want a song that's not available? Suggest songs on Smule’s Facebook page: www.facebook.com/smule PICK UP AND PLAY EFFORTLESSLY Magic Piano makes you sound like a piano prodigy - any time, anywhere. Play your favorite songs with your own spin and sound great every time. -Follow beams of light to guide your fingertips to the correct note. You control the notes, rhythm and tempo, allowing your creativity and expressivity to shine. -Try out different instruments - change your piano into a harpsichord, Funky 80's synth, organ and more! PLAY WITH VOCALISTS FROM SMULE In the new Smule Jams mode, you can play the piano alongside real vocalists from the Smule community! CONNECTING THE WORLD THROUGH MUSIC™ - SHARE YOUR PERFORMANCES -Broadcast your performances on the in-app Smule Globe or listen to other players’ songs and give their performances some love. -Share your pieces through Facebook, Twitter and email. UNLIMITED PREMIUM SUBSCRIPTION - You can subscribe for unlimited access to our full song and instrument catalog - The subscriptions are $7.99 weekly, $19.99 monthly and $99.99/annually* - You'll be able to play all available songs on any instrument for the duration of your subscription - Payment will be charged to iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period - Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the chosen package - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase - No cancellation of the current subscription is allowed during active subscription period *Price are equal to the value that "Apple's App Store Matrix" determines is the equivalent of the subscription price in $USD. https://www.smule.com/termsofservice

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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
Zustand
React Navigation
React Native Reanimated
Expo AV
BUILD KIT DIFFICULTY
Expert

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.