Music analysis for iPhone
See inside your music.
Import a track and explore its key, BPM, structure, energy, instruments and loudness — analyzed privately on your iPhone.
With Pro, keep your own lyrics and notes right next to each song.
Supported formats: AAC, AIF, AIFF, CAF, FLAC, M4A, MP3, WAV
MIDNIGHT SIGNAL
Nova Lane
03:42
Key
F minor
Tempo
126 BPM
Loudness
-9.4 LUFS
Structure
The track is divided into four sections of unequal length, shown left to right.
Energy
Energy starts low, rises through the middle of the track and reaches its highest point near the final section.
Instruments
Drums run through most of the track, bass enters early and holds, vocals appear in the middle sections and other instruments arrive near the end.
Loudness
Short-term loudness stays even through the opening, dips before the final section and peaks in the last third.
Built for producers, DJs, musicians and creators.
- Producers
- DJs
- Musicians
- Video creators
Feature overview
Everything you want to know about a track.
Key
Find the tonal center.
F minor
Rhythm
Lock into the rhythm.
126 BPM
Structure
See how the track unfolds.
4 sections
Energy
Follow the energy.
Low → high
Instruments
See when instruments come and go.
4 lines
DrumsBassVocalsOtherLoudness
Understand the dynamics.
-9.4 LUFS
Synchronized player
One timeline. The whole track.
Play the song and watch its musical structure, energy, instruments and loudness move together.
- Structure
- Energy
- Instruments
- Loudness
MIDNIGHT SIGNAL
Nova Lane
03:42
Key
F minor
Tempo
126 BPM
Loudness
-9.4 LUFS
Structure
The track is divided into four sections of unequal length, shown left to right.
Energy
Energy starts low, rises through the middle of the track and reaches its highest point near the final section.
Instruments
Drums run through most of the track, bass enters early and holds, vocals appear in the middle sections and other instruments arrive near the end.
Loudness
Short-term loudness stays even through the opening, dips before the final section and peaks in the last third.
Workflow
From audio file to musical map.
- 01
Import
Choose a track from Files.
- 02
Analyze
TrackScope analyzes the music directly on your iPhone.
- 03
Explore
Inspect key, rhythm, structure, instruments, energy and loudness.
Lyrics and notes
Your lyrics. Your ideas. At the right moment.
Save your lyrics, mark their lines while you listen and write down your ideas with optional timestamps. Everything stays with the song, inside TrackScope.
LyricsPro
- Paste, save and edit lyrics you provide.
- Mark line timings while the song plays.
- Follow the synced lines during playback.
- Use local timing suggestions when available, and complete or correct marks by hand.
NotesPro
- Save several notes about the song or its analysis.
- Optionally add a timestamp.
- Jump to that moment in the audio from a note, when the file is available.
- Useful for production notes, arrangement ideas and references for studying a song.
- You provide the lyrics. There is no lyrics search and no automatic lyrics generation or transcription.
- Timing suggestions may be incomplete; perfect automatic sync is not promised.
- Notes belong to the song as a whole, not to individual instruments or vocals.
- Saved text can be read even if the original audio is unavailable.
- Creating or editing lyrics, timings and notes requires Pro.
Lyrics
- 00:12Streetlights hum a quiet tune
- 00:16I trace the city with my hands
- --:--Every window holds a moon
Notes
- 01:04
Try a lower bass line here.
- No timestamp
Reference: open hi-hats in the intro.
Privacy
Your music stays yours.
TrackScope analyzes your audio directly on your device. Your tracks don’t need to be uploaded to a server to understand them.
On-device analysis
Your track is analyzed directly on your iPhone.
No account required
Open TrackScope and start analyzing.
No cloud dependency
Your core analysis doesn’t require a TrackScope backend.
Private by design.
Read the Privacy PolicyLibrary
Your analyses, ready when you need them.
Every analysis stays available locally, so you can reopen a track and study it again without running the analysis a second time.
- Analyses stay in a private, local library.
- Search by title or artist.
- Reopen an analysis without running it again.
- Delete tracks and analyses whenever you want.
- Midnight SignalNova Lane126 BPM · F minor · -9.4 LUFSToday
- AfterglowMotion Fields118 BPM · A major · -11.2 LUFSYesterday
- Static HeartsNorth Arcade132 BPM · D minor · -8.7 LUFS3 days ago
Target users
Built for the way you work.
Producers
Quickly inspect reference tracks before opening your DAW.
DJs
Check BPM, key and structure while preparing a set.
Musicians
Study how songs develop over time.
Video creators
Find beats, bars and structural changes for better edits.
Pricing
Start free. Go deeper with Pro.
Free
€0
Three full analyses to start, then one per calendar week.
- Three full welcome analyses.
- Then one analysis per calendar week.
- Weekly analyses do not accumulate.
- Library of up to three tracks.
- Every type of analysis result.
- Synchronized playback.
- View and delete saved lyrics and notes.
- No JSON export.
- No creating or editing lyrics and notes.
In Settings → Your plan you can see your remaining welcome analyses or when your next free analysis will be available.
TrackScope Pro
Analyze without limits, keep your library and work on every song with your lyrics and notes.
Monthly
Auto-renewing subscription
Yearly
Auto-renewing subscription
Yearly plan
Lifetime
One-time non-consumable purchase, no renewal
All three unlock the same Pro features. Check the price in the app before buying.
- Unlimited analyses.
- Unlimited library.
- Every type of analysis result.
- Synchronized playback.
- JSON export of the analysis results.
- Create and edit lyrics with line timings.
- Notes with optional timestamps.
The JSON includes the analysis results. Lyrics, their timings and notes stay inside the app and are not exported.
If you no longer have Pro, your saved lyrics and notes are not deleted. You can keep viewing and deleting them. Adding or editing content requires Pro.
Purchases are made inside the app through the App Store. There is no web checkout. How to manage your Apple subscriptions
FAQ
Questions about TrackScope.
- Key, rhythm, structure, energy, instrument activity and loudness — read from the audio file itself.
- No. Version 1.0 analyzes the audio locally on your iPhone and does not use a backend for that processing.
- TrackScope works with compatible audio files imported through Files on your iPhone.
- It detects structural boundaries and presents them as sections. It does not invent musical labels when the analysis is not certain enough.
- No. Version 1.0 has no account and no sign-in.
- The saved analysis stays available, although you may need to select the file again to play it back.
- Unlimited analyses, an unlimited library, JSON export of the analysis results, creating and editing lyrics with line timings, and notes with optional timestamps.
- Three full welcome analyses. After that, one analysis per calendar week. Weekly analyses do not accumulate.
- Weekly analyses do not accumulate. You can have at most one weekly analysis available.
- No. It is a music inspector focused on understanding a track quickly.
- With Pro, open a track and paste your lyrics. You can save and edit them at any time.
- No. You provide the lyrics. TrackScope does not search for, generate or transcribe lyrics.
- Play the song and mark each line as it starts. When local timing suggestions are available, you can use them and then complete or correct the marks by hand.
- You can always mark or correct every line manually. Suggestions may require an initial download of an Apple language model and are not guaranteed to be complete.
- Yes. The timestamp is optional. Notes belong to the song as a whole.
- They are not deleted. You can keep viewing and deleting them; adding or editing requires Pro. Cancelling a subscription stops the next renewal — Pro stays active until the paid period ends.
- No. The JSON includes the analysis results. Lyrics, their timings and notes stay inside the app.
- Yes. Saved text stays readable. Jumping to a note’s moment needs the audio file to be available.
- In Settings → Your plan you can see your remaining welcome analyses or when your next free analysis will be available.
- Use Restore Purchases inside the app. It recovers the access you bought, not local files or annotations you deleted.
TrackScope tells you what its analysis finds. It is a fast read of a track, not a measuring instrument.
Hear the track. See the music.
Key, BPM, structure, energy, instruments and loudness — one private analysis on your iPhone.