Neon Engine vs BPM Runner

Transform your music into a sound that feels uniquely yours. Neon Engine is an on-device audio workshop for reshaping local music with immersive effects. Import a track, preview different styles, fine-tune the result, and save it to your personal library—all directly on your iPhone. -- AUDIO MODES -- Bass Enhance: Add more weight and depth to your music with a stronger low-end sound. Slowed + Reverb: Adjust the tempo, tone, and reverb to create a deeper, more atmospheric mix. City Pop: Give your track a bright, nostalgic character inspired by retro nighttime soundscapes. Fast Tempo: Speed up your music with adjustable tempo controls, from a subtle lift to a high-energy remix. Original: Save and manage the original track alongside your converted versions. -- BUILT FOR YOUR MUSIC -- Live Preview: Hear each effect before saving and fine-tune supported modes in real time. Personal Library: Organize converted tracks, rename them, filter by effect, and mark favorites for quick access. Bulk Actions: Select multiple tracks to update favorites or delete them together. Files Integration: Import compatible audio files directly from the iOS Files app. Background Playback: Continue listening to tracks from your Neon Engine library outside the app. -- PRIVATE BY DESIGN -- Your music stays on your device. Audio processing is performed locally without uploading your files to a remote server. Neon Engine is designed for local audio files you own and for personal, creative use.

Run in rhythm with YOUR own music. BPM Runner automatically analyzes your Apple Music library and sorts every track by BPM (beats per minute). No pre-made playlists, no streaming catalog : just the music you already love, filtered by your running cadence. HOW IT WORKS 1. BPM Runner analyzes the real tempo of each track in your library, right on your iPhone. 2. Pick your zone : Walk, Jog, Run, Sprint. 3. Hit play and only the songs at the right cadence go into your queue. FOUR PACE ZONES Walk (60 to 99 BPM) : warm-up Jog (100 to 129 BPM) : endurance Run (130 to 159 BPM) : fast tempo Sprint (160 to 200 BPM) : maximum effort Matching your music's tempo to your running cadence helps you hold a steady pace, lowers perceived effort, and makes longer runs feel easier. WHAT MAKES BPM RUNNER DIFFERENT Your music, not an imposed catalog Reads your Apple Music library directly. No extra subscription, no limited catalog. Real audio analysis BPM is detected from the actual audio, not guessed by tapping. Two modes available : Standard for speed, Precise for accuracy. 100% on device Everything is computed on your iPhone. Nothing sent online, no cloud, no account required. Instant zone filters One tap on a zone rebuilds your queue on the fly. Background analysis with alerts Analyze your whole library in the background and get a notification when it's done. Full library browser Browse and search your entire library, filter by zone, or show only tracks that still need a BPM. Confidence flags Uncertain results are flagged so you can re-analyze them in Precise mode. Dedicated player Live BPM display, dynamic queue, full-screen controls, artwork-adaptive background. WHO IT'S FOR Runners chasing a steady cadence (5K, 10K, half, marathon) Walkers looking for a consistent rhythm Interval fans who switch intensity by zone Anyone who finally wants to put their music library to work