Web4 Browser vs ExtBid

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

Web4 Browser compared with ExtBid
Detail	Web4 Browser	ExtBid
What it does	AI antidetect browser and multi-account workspace with true-to-device browser identity	Chrome extension to download Instagram posts, Reels, Stories, and Highlights
Stage	Not given	Not given
Founded	Not given	Not given
Based in	HK	Not given
Pricing model	Freemium	Freemium
Pricing	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	Monthly: $4.99/month USD (auto-renews on PayPal). Yearly: $29.99/year (about $2.50/month). Lifetime: $79.99 one payment. Free plan includes 20 bulk runs per UTC week, Download New on 10 accounts, and 20 links per Download by Link task. Coupon LAUNCH20 gives 20% off the first period or lifetime.
Key features	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	Download All to back up a whole profile Download New for only new posts since last run Download by Link to save posts from URLs or lists Customizable naming and folder organization CSV export of downloaded files Download history by profile Google Drive integration for Pro users
What makes it different	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	Download New maintains baselines to avoid duplicates Human support within 24 hours Works inside Instagram tab with no redirects or external sites
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)	44 no change since last check	2 no change since last check
Trust Flow (Majestic)	8	3
Citation Flow (Majestic)	26	18
Referring domains (Majestic)	54	28

5 details filled in for both companies.

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