Groove Number
swing %, bpm, key, on-device
About
Analyze the rhythmic feel of your music with detailed swing percentage, BPM, and key analysis. Visualize your groove through various interactive displays and export it as MIDI for use in your DAW. All processing happens on-device for privacy.
What's New in Groove Number
1.1.4
September 2, 2026
a few fixes, and a smoother feel throughout. - live no longer comes up silent the first time you start listening right after loading a file. - record only hands over a take once it has actually found a groove in it, instead of stopping at a flat eight seconds with nothing to show. - adjusting the tempo (tap, ±1, ×2, ÷2) now updates the midi export too. it used to keep the old bpm. - the whole app eases in instead of snapping: the vu needle, adjust tempo, the record pulse, live's readouts. - analyze shows when it's still listening for a song id, instead of going quiet for a few seconds. same on-device analysis. no account, no upload.
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FAQ
What is Groove Number?
Groove Number is a music analysis application that provides detailed insights into the rhythmic feel of a track. It measures swing percentage, estimates BPM, and detects the musical key, offering a comprehensive understanding of a song's groove.
How does Groove Number analyze music?
Groove Number analyzes audio files, recorded clips, or live microphone input. It processes this audio on-device to calculate metrics like swing percentage, BPM, and key, presenting the data in various visual formats.
What are the different ways to view the analysis in Groove Number?
Groove Number offers four distinct views: Meter for a consolidated readout of swing, BPM, and key; Swing Grid to visualize onset timing against the grid; Spectrogram for a mel-scaled heatmap; and Chromagram to display pitch classes over time.
Can I export the groove information from Groove Number?
Yes, Groove Number allows you to export the analyzed groove as a MIDI clip. This MIDI data includes the swing baked into the note timing, enabling you to drop it into a DAW and replicate the pocket of your track.
Does Groove Number have ads?
No, Groove Number is completely ad-free. The application is built with a focus on user privacy and a calm, honest analysis experience, with no advertisements included.
What devices is Groove Number compatible with?
Groove Number is available for iPhone, iPad, and Mac devices. It is designed to run entirely on-device, ensuring your audio data remains private and secure.
How often is Groove Number updated?
Groove Number was last updated on September 2, 2026, with version 1.1.4. The developer, Joshua Langberg, regularly releases updates to improve functionality and reliability.
What is the price of Groove Number?
Groove Number is a paid application, available for a one-time purchase of $1.99. There are no in-app purchases or subscription fees associated with its use.
