SlideSieve vs Web4 Browser

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

SlideSieve compared with Web4 Browser
Detail	SlideSieve	Web4 Browser
What it does	Auto-capture slides from course videos into clean PDFs with synced transcripts	AI antidetect browser and multi-account workspace with true-to-device browser identity
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	HK
Pricing model	Freemium	Freemium
Pricing	Free Plan: $0 forever with up to 50 slides and 3 transcript trials. 3-Month Access (Students): $6.99 one time, expires 90 days after purchase. Pro Lifetime (Best Value): $16.99 one time (originally $24.99, 32% launch discount), pay once and use forever with unlimited slides, transcripts, and PDF exp	Free plan includes 3 browser environments with no team members. Starter at $9/month provides 15 environments. Small Team at $19/month includes 1 team member and 55 environments. Popular at $39/month includes 2 team members and 125 environments. Scale Team at $69/month includes 4 team members and 250
Key features	Automatic slide detection that identifies real slide frames and skips instructor webcams, code editors, and transitions Transcript extraction with automatic pulling from supported platforms in Timed View or Readable View Manual snap capture with keyboard shortcuts (Ctrl+Shift+9) for code, notebooks, and demos Customizable Slide Detection Zone to manually define capture area or set exclusion zones PiP Magic Eraser that removes webcam overlays and fills background areas smoothly Deduplication that skips duplicate slides while preserving bullet builds and progressive reveals Multi-View Slide Browser with grid, list, and full-screen presentation views	Isolated browser profiles with persistent identity and session data Real-device fingerprinting and AI environment modeling Per-profile proxy and network configuration Browser automation with visual workflows and headless execution Team permissions, roles, and activity logging AI browser workflows and MCP skill integration Multi-environment grouping and workspace organization Profile template copying and batch creation
What makes it different	Works across multiple platforms (DeepLearning.AI, Coursera, Udemy, YouTube) with same toolbar and workflow Free plan with 50 slide captures and 3 transcript trials, no credit card or signup required Lifetime Pro ownership model ($16.99 one time) with all future features included and no recurring subscriptions Supports Chromium-based browsers (Chrome, Edge, Brave, Opera, Arc) officially and on other variants	Real-device signals and AI environment modeling instead of manual parameter mixing Isolated execution boundaries with team-level access control and activity logging Unified workspace for profiles, proxy routing, automation, and team handoffs
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	44 no change since last check
Trust Flow (Majestic)	0	8
Citation Flow (Majestic)	16	26
Referring domains (Majestic)	3	54

5 details filled in for both companies.

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