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Opposable vs MarStack

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

Opposable compared with MarStack
DetailOpposable logo OpposableMarStack logo MarStack
What it doesComputer use for phones Analytics expert and auditor inside Claude that checks GA4, Google Tag Manager, consent, Meta and Google Ads with 167 expert rules and answers business questions across your marketing data.
StageNot given Not given
FoundedNot given Not given
Based inEE Not given
Pricing modelFreemium Not given
PricingFree: $0, includes phone app, MCP server, REST API, common tasks with no model, scheduled tasks, iPhone through Mac (beta). Pro: $5/month founding offer ($8/month regular, $79/year), includes remote access, Claude and ChatGPT apps, cron jobs, recipe sync across up to 3 phones. Power: $29/month, ever Free: 100 credits (no card required). Starter: $19/month for 1,000 credits. Pro: $49/month for 5,000 credits. Agency: $149/month for 30,000 credits. Individual tool calls cost 1-10 credits depending on complexity.
Key features
  • See and control any app without API
  • On-device model runs locally on phone
  • 40 built-in tasks with no model
  • Screen model 1.4 GB for app interactions
  • Works with Claude, ChatGPT and other models
  • Remote access through relay
  • Scheduled tasks and webhooks
  • iPhone support via Mac app
  • Payment approval requires user tap
  • Recipes learned and replayed locally
  • GA4 property audits with 89 expert checks
  • Real-browser page tracking inspection and validation
  • Live conversion testing with form submission
  • Business intelligence across GA4, Meta, Search Console and CRM
  • Branded report generation in Excel, Word, PDF and PowerPoint
  • Integration with Claude, Cursor and VS Code via MCP
What makes it different
  • Runs on-device so screen never leaves the phone
  • NPU acceleration on recent Snapdragon phones
  • No app installation needed on iPhone
  • Works with any model via standard MCP
  • Cloud phones with founding cohort pricing lock-in
  • Real-browser proof of tracking, not config checks alone
Community votes00
DR (Domain Rating by Ahrefs)12 +2 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)100
Citation Flow (Majestic)338
Referring domains (Majestic)764

4 details filled in for both companies.

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