8Dfy vs Seply

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

8Dfy compared with Seply
Detail	8Dfy	Seply
What it does	Browser extension that transforms YouTube, Spotify Web and Apple Music into immersive 8D spatial sound	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: Full 8D experience with 8D rotation, Auto DJ, 8 presets, bass/clarity/reverb controls, floating panel with visualizer, 30-second shareable video samples, and 60-second previews of every Pro mode. Pro: $4.99 one-time payment unlocks multi-band surround, HRTF 3D, binaural beats, full-length expo	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	8D rotation engine with circular, sine, triangle and bounce patterns Beat-aware Auto DJ transitions carrying 4-8 beats between tracks Multi-band surround with frequency-dependent positioning HRTF 3D positioning with Orbit, Figure-8 and Drift paths Binaural beats at 15 Hz, 10 Hz, 6 Hz and 3 Hz frequencies Real-time audio visualizer with 120x120 canvas 30-second shareable video exports with visualizer Full-length exports up to 10 minutes as MP4, WAV or M4A Interaural time delay and head shadow filtering	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	Processes all audio entirely in browser with zero data sent anywhere, ever Works directly on YouTube, Spotify Web and Apple Music without disrupting playback Bio-accurate interaural delay of 0.7ms with HRTF 3D positioning Instant license key delivery via email with immediate activation	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)	11 no change since last check	28 −1 (down) since last check
Trust Flow (Majestic)	7	10
Citation Flow (Majestic)	19	30
Referring domains (Majestic)	20	88

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