Key & BPM Lab vs Seply

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Key & BPM Lab compared with Seply
Detail	Key & BPM Lab	Seply
What it does	Free browser-based audio tools for finding and changing song key and BPM	AI speaker separation to split audio by speaker into individual tracks
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free plan includes Key & BPM Finder and Changer, Audio Cutter and Joiner, BPM Tapper and Metronome, Voice Recorder, and local processing tools with files saved for 6 hours. Plus plan: $9.90/month with 1,000 credits per month and files saved for 7 days. Pro plan: $19.90/month with 2,500 credits per m	Free Trial: 20 credits once (about 2 minutes of Standard Separation). Monthly plans: Starter $12 (200 credits), Creator $29 (600 credits), Studio $65 (1500 credits). Annual plans: Starter $120, Creator $288, Studio $648. One-time credit packs: 200 credits for $16, 600 credits for $39, 1500 credits f
Key features	Detect song tempo, musical key, scale and Camelot code Change key and BPM independently and export as WAV Cut and join audio segments Record voice and tap beat timing Practice with online metronome Remove vocals from songs Split songs into instrument stems Enhance audio quality with AI Convert audio to editable MIDI	Individual speaker tracks with separate WAV files Time-aligned output with synchronized track starts Automatic and manual speaker detection Support for 30+ languages Multiple audio and video file format support Advanced Overlap mode for simultaneous speech Private processing with 30-day result access Preview functionality before download Credit-based pricing with cost estimate before processing Upload support for files up to 1 GB
What makes it different	Process audio locally in browser without uploading to servers No file storage or account required for free tools All free tools with privacy-first design Direct export from browser without server processing	Works with both audio and video files with automatic speaker detection Handles overlapping and simultaneous speech with Advanced Overlap mode Keeps time-alignment across all exported tracks for editing workflow continuity Separates voices into individual tracks rather than just labeling speakers
Community votes	0	0
DR (Domain Rating by Ahrefs)	25 −1 (down) since last check	28 −1 (down) since last check
Trust Flow (Majestic)	19	10
Citation Flow (Majestic)	12	30
Referring domains (Majestic)	35	88

5 details filled in for both companies.

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