Skip to main content
Grady Gaugler

Song Sweeper

Solo builder · 2025–26

Song Sweeper cleans up messy Apple Music libraries. It finds duplicate songs across albums, unifies album editions, surfaces songs you no longer play, and helps you favorite your most-played tracks. I built it solo with Claude Code because nothing on the market did this. Revenue grew sixfold, and it reached #1 on the App Store for duplicate songs.

Solo. Grady built everything with Claude Code and other agentic workflows.

The problem

My Apple Music library was a mess, and nothing on the market fixed it.

My Apple Music library was a mess, and I couldn't find a product that helped me clean it up the way I needed.

So I built Song Sweeper. It started with a frustration I knew firsthand and became a tool other people use to clean up their libraries too.

A simple cleanup flow

Four focused cleanups for an Apple Music library.

Duplicates: find the same song across different albums and keep one.

Split albums: unify album editions into one, without losing songs.

Least played: surface songs you no longer listen to so you can remove them.

Most played: favorite your top tracks to improve recommendations.

Song Sweeper home screen with library totals and cleanup categories: duplicates, duplicates in playlists, split albums, least played, and most playedSong Sweeper listing duplicate songs found across albumsSong Sweeper consolidation plan merging 11 Paul McCartney albums into 8 while keeping all 49 songs

Growth and monetization

6× revenue, #1 for duplicate songs, and strong App Store conversion.

I grew revenue sixfold. Song Sweeper reached #1 on the App Store for duplicate songs, a niche search, not the overall chart.

10% of App Store search impressions turn into downloads, and 20% of downloads turn into a purchase.

The conversion rates came from product positioning, App Store optimization, and UX. I don't publish the revenue baseline or timeframe.

  • 6×

    revenue growth

    Baseline and timeframe are not published.

  • #1

    on the App Store for duplicate songs

    Ranked #1 in searches for duplicate songs and music, a niche, not the overall App Store chart.

  • 10%

    App Store search impressions → downloads

  • 20%

    downloads → purchases

How it’s built

Built solo with Claude Code. In-app purchases, alerts, and analytics; no AI features.

I owned every part: product definition, UX, development, QA, analytics, the site at songsweeper.com, and the launch.

I built it with Claude Code and other agentic workflows, which let me prototype quickly and test decisions with working product.

It has App Store in-app purchases, alerts, and PostHog analytics. It has no AI features and no accounts.

Song Sweeper least-played songs, ready to removeSong Sweeper most-played songs, ready to favorite

Capabilities