WBX Sandbox vs Device Agent

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

WBX Sandbox compared with Device Agent
Detail	WBX Sandbox	Device Agent
What it does	Secure execution for AI agents in isolated Firecracker microVMs or WebAssembly	Give your AI agent a real phone with a physical SIM card and dedicated number
Stage	Not given	Startup
Founded	Not given	2026
Based in	CZ	FR
Pricing model	Not given	Free trial
Pricing	Free plan: no card required, 5 concurrent sandboxes, up to 1 hour per sandbox, one-time welcome credit. Pro: $49.00/month (excl. VAT) with $25.00 usage credit, 25 concurrent sandboxes, up to 24 hours per sandbox, 100 vCPU/100 GB RAM total. Team: $119.00/month (excl. VAT) with $50.00 usage credit, 10	Agent plan: 19 € per month per phone after 3-day free trial. Each additional phone: 19 € per month. Fleet plan available with custom pricing for multiple devices and higher volumes. Launch price: 28 € (reduced to 19 €).
Key features	Isolated Firecracker microVMs with own kernel and filesystem Background jobs that survive disconnects Batch execution with up to 1,000 jobs and dependency passing WebAssembly jobs starting in milliseconds without VM boot Budget Guard with cost reserves and limits Execution receipts with runtime, isolation, resources and file hashes Native MCP server integration for ChatGPT and Claude Compact log digests instead of full 5,000-line logs Server-side job waiting with signed webhooks Verified package cache for PyPI, npm, Go and Rust	Physical phone with real SIM card and dedicated number Send and receive SMS messages Read verification codes from screen Operate mobile apps with taps, swipes and typing Take screenshots of device screen MCP server integration REST API access Always-on connectivity with 5G network Add multiple phones to one account
What makes it different	Two runtimes with honest isolation labeling	Uses real physical phones with real SIM cards, not virtual numbers, so it works with services that reject virtual numbers Completely hands-free automation of mobile apps with no web version Full feature access during free trial with no payment required if cancelled before day 4
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)	2 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	0	0
Referring domains (Majestic)	0	0

5 details filled in for both companies.

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