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Viaduct vs Macswarm

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

Viaduct compared with Macswarm
DetailViaduct logo ViaductMacswarm logo Macswarm
What it doesFree C4 modeling tool with an MCP server for software teams to share architecture context with AI development tools Hosted Mac Pods with Xcode and iOS Simulators for Claude Code and Codex
StageNot given Startup
FoundedNot given 2026
Based inLT UA
Pricing modelFreemium Freemium
PricingBrowser: Free with account. Desktop: €10 a month after 7-day free trial, one licence covers 3 machines. Enterprise: custom pricing. Free: 3 Pod-hours once, no card needed. Pro: $99/month for 300 Pod-hours, $0.40 per extra Pod-hour. Team: $399/month for 1,500 Pod-hours, $0.30 per extra Pod-hour. Enterprise: from $3,000/month with dedicated Macs and no metered hours.
Key features
  • System context, container, component, and code diagrams
  • Live collaboration on models
  • MCP server for AI coding agents
  • Change sets for scoped agent work
  • Organization SSO
  • JSON import and export
  • OpenAPI contract export
  • Desktop app for macOS, Windows, Linux
  • AI assistant for model descriptions
  • Installable PWA
  • Latest Xcode in every Pod
  • iOS runtimes and pre-booted Simulators
  • Claude Code and Codex support
  • XcodeBuildMCP for build automation
  • Two-slot build queue
  • EU and US region selection
  • Per-second Pod-hour metering
  • 3 to 4 pre-booted Simulators per Pod
  • Isolated Pods destroyed after sessions
  • Audit log and usage by developer on Team plan
What makes it different
  • Model elements exist once and appear on every level they belong to
  • Endpoints are real OpenAPI documents, not diagram labels
  • Desktop app keeps all data local and offline-capable
  • Free browser version with no paywall or feature limits
  • AI agents read and write architecture through MCP
  • 2 to 3 agents per Pod guaranteed with no per-agent fees
  • Pods boot in seconds from warm pool
  • iOS Simulators included and already booted
  • Fresh isolated Pod for every session, destroyed after use
Community votes00
DR (Domain Rating by Ahrefs)20 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)100
Citation Flow (Majestic)280
Referring domains (Majestic)740

6 details filled in for both companies.

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