Skip to main content

Built by makers, shipped in public

Sign in

Spek vs Viaduct

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

Spek compared with Viaduct
DetailSpek logo SpekViaduct logo Viaduct
What it doesAI app store optimization agents for App Store and Google Play Free C4 modeling tool with an MCP server for software teams to share architecture context with AI development tools
StageNot given Not given
FoundedNot given Not given
Based inAE LT
Pricing modelNot given Freemium
PricingGrowth plan $500/month (5 apps, 750 credits, 10,000 keywords researched). Pro plan $2,000/month (10 apps, 4,000 credits, 25,000 keywords researched). Scale plan $5,000/month (25 apps, 10,000 credits, 100,000 keywords researched). Enterprise plan with custom pricing. Annual billing saves 20%. Browser: Free with account. Desktop: €10 a month after 7-day free trial, one licence covers 3 machines. Enterprise: custom pricing.
Key features
  • Keyword research for App Store and Google Play markets
  • Localized metadata drafts in the store's own language
  • Daily keyword rank tracking across storefronts
  • Screenshot redesign and localization for App Store
  • Custom product pages and A/B experiments
  • In-app event drafts and scheduling
  • Competitor tracking and analysis
  • Team collaboration with role-based permissions
  • Direct publishing to App Store Connect and Google Play
  • API key connection without sharing Apple ID
  • 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
What makes it different
  • Self-learning ASO agents that research and draft across multiple markets in each storefront's own language
  • One workspace connecting research, drafting, review and publishing without storing Apple ID passwords
  • Daily ranking tracking to measure visibility lift after publishing changes
  • Ready-to-review proposals with market context and supporting estimates
  • Support for iOS and Android with App Store-specific features like custom product pages
  • 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
Community votes00
DR (Domain Rating by Ahrefs)4 +1 (up) since last check20 no change since last check
Trust Flow (Majestic)2110
Citation Flow (Majestic)2528
Referring domains (Majestic)9474

5 details filled in for both companies.

More alternatives to Spek More alternatives to Viaduct

Ask us