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Mastros 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.

Mastros compared with Web4 Browser
DetailMastros logo MastrosWeb4 Browser logo Web4 Browser
What it doesPrivacy-first Chrome extensions that export chat and social media data to spreadsheets AI antidetect browser and multi-account workspace with true-to-device browser identity
StageStartup Not given
Founded2026 Not given
Based inNot given HK
Pricing modelFreemium Freemium
PricingFree: 100 profiles and 100 messages per month (WhatsApp), or 250 profiles and 300 messages per month (Telegram), or 250 records (LinkedIn). Instagram and TikTok free and unlimited in beta. Pro: $9/month with 5,000 profiles and 10,000 messages per month (WhatsApp), or 5,000 records (LinkedIn). Scale: 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
  • Export group members and chat messages to CSV, JSON or JSONL
  • Bulk media download from chats
  • Export LinkedIn searches with Sales Navigator support
  • Extract email and website from Instagram and TikTok bios
  • Calculate exact TikTok engagement rates
  • Process all data in the browser with no server involvement
  • Read-only with no automation or message sending
  • 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 with no account creation, API key or password required
  • Reads only visible data; cannot reveal hidden information or deleted messages
  • Five tools with the same pricing model and interface
  • Instagram and TikTok extensions are free and unlimited during beta
  • 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 planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)35 no change since last check44 no change since last check
Trust Flow (Majestic)108
Citation Flow (Majestic)2826
Referring domains (Majestic)5454

5 details filled in for both companies.

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