App Overview

The Metronome by Soundbrenner icon

The Metronome by Soundbrenner

Soundbrenner · Music

A powerful metronome, intuitive practice tracker, and precise tuner — all in one app

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.7
46,711 ratings · Top 15%

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 included18 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 The Metronome by Soundbrenner: 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

Offer extensive sound packs and customizable options to enhance user experience.

Assumption to check: Lack of advanced features like custom sound packs

Validate with people who use this workflow before building.

Hypothesis 2

Use animations and visual cues to indicate tempo changes more effectively.

Assumption to check: Limited visual feedback for tempo adjustments

Validate with people who use this workflow before building.

Hypothesis 3

Implement a more intuitive settings shortcut or quick access feature.

Assumption to check: Difficulty in accessing settings quickly

Validate with people who use this workflow before building.

Hypothesis 4

Add offline capabilities for sound packs and settings.

Assumption to check: No 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

A powerful metronome, intuitive practice tracker, and precise tuner — all in one app. Soundbrenner makes music practice addictive. Here’s how: The Metronome by Soundbrenner is a professional tool designed for musicians of all instruments and skill levels. Whether you’re practicing daily, performing live, or recording in the studio, this app offers everything you need to reach your musical goals. Trusted by over 10 million musicians and featured in NAMM, Rolling Stone, MusicRadar, and more, it’s the ultimate companion for your musical journey. METRONOME • Easy to use, yet incredibly powerful metronome • Metronome clock with rock-solid precision • Customize the metronome's time signature and subdivision, and emphasize beats with accents • Choose from more than 20 unique metronome sounds, switch between dark and light themes, and more powerful customizations • Save your rhythms and load them instantly in the metronome with world-class setlist management • Connect the metronome to USB MIDI, Bluetooth MIDI, Ableton Link, and more PRACTICE TRACKER • Track your progress, fuel your motivation, and reach your musical goals • Set daily or weekly goals, maintain your streak, and challenge yourself to keep it going • Monitor your progress with home and lock screen widgets • Join the 10,000-hour challenge and level up as you practice more • Track your practice hours separately for each instrument you play • Set one-time or recurring practice reminders TUNER • Tune with precision and always sound great • Choose between chromatic tuning and over 100 tuning profiles • Adjust the tuning reference from 440 Hz to your preference • Automatically recognizes and selects the string you’re tuning WHAT THE PRESS SAYS: • “Best in Show” ― The NAMM Show • “Revolutionize the way you practice” ― FutureMusic • “Keeps you on the beat” ― TechCrunch • “One of the best drum innovations” ― MusicRadar • “The best metronome app” ― WIRED WHAT MUSICIANS SAY: • “It’s sleek and easily understood in seconds. And the controls are great. Fast and intuitive. The Metronome by Soundbrenner is what all musicians need to practice their tempo.” ― Pete Korpela (Drummer, Grammy-nominated, played with Robbie Williams, Disturbed, Hans Zimmer, and many more) • ”You get it. You can figure it out. You lock into the metronome. It doesn't get any better than that.” ― Robert Sarzo (Guitarist of Hurricane and Queensrÿche, worked with Jimmy Iovine and legendary metal producers Bob Ezrin and Mike Clink) • “I walk on stage. The Metronome by Soundbrenner is right there and ready to go.” ― Randy Waldman (Pianist, composer, Grammy winner, played with Frank Sinatra, Michael Jackson, Whitney Houston, Beyoncé, Stevie Wonder, and many more) • “Make the metronome what you want it to be.” ― Robert “Bubby” Lewis (Bassist, composer, played with Snoop Dogg, Dr. Dre, Lupe Fiasco) ABOUT SOUNDBRENNER: Visit https://www.soundbrenner.com to explore our metronomes and other innovative music tools that remove the hassle from your practice. FOLLOW US: • Instagram: https://www.instagram.com/soundbrenner • Facebook: https://www.facebook.com/soundbrenner • YouTube: https://www.youtube.com/soundbrenner • X: https://www.x.com/soundbrenner SOUNDBRENNER PLUS TERMS: When you subscribe, payment will be charged to the credit card connected to your Apple Account. Subscriptions automatically renew, but there's no commitment and you can turn off renewal up to 24 hours before the next billing period. Manage your subscription by going to your Apple Account settings. • Terms of paid services: https://www.soundbrenner.com/terms-of-paid-services • Terms of use: https://www.soundbrenner.com/app-terms-of-use • Privacy policy: https://www.soundbrenner.com/app-privacy-policy

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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
expo-av
react-native-reanimated
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.