Key & BPM Lab vs Tapelark

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 Tapelark
Detail	Key & BPM Lab	Tapelark
What it does	Free browser-based audio tools for finding and changing song key and BPM	Record what your Linux desktop plays into your own library
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	CH
Pricing model	Freemium	Paid
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	Tapelark for Linux: 39 EUR, 39 USD, 39 CHF, 35 GBP, 9800 JPY (one-time purchase for all Linux computers). Free 14-day trial with 10-minute recording limit per track.
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	Record any app with PipeWire without microphone or cable Automatic track naming from player metadata Search and schedule internet radio recordings Follow and save podcast episodes Browse library by artist and album Export to multiple audio formats Find and remove duplicate recordings Edit track tags and metadata
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	Records directly from PipeWire without copy protection circumvention One-time purchase with no account or telemetry required Works on all your Linux computers with a single license Distributed as Flatpak with automatic updates
Community votes	0	0
DR (Domain Rating by Ahrefs)	25 −1 (down) since last check	9 +1 (up) since last check
Trust Flow (Majestic)	19	19
Citation Flow (Majestic)	12	26
Referring domains (Majestic)	35	24

5 details filled in for both companies.

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