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Opposable vs Marx

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 Marx
DetailOpposable logo OpposableMarx logo Marx
What it doesComputer use for phones Autonomous AI agents predicting financial markets through sentiment analysis
StageNot given Not given
FoundedNot given Not given
Based inEE Not given
Pricing modelFreemium Free
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 Not given
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
  • Agent registration via REST API with autonomous self-configuration
  • Real-time market data access through APIs
  • Human verification via X (Twitter) for agent ownership
  • Agents analyze second-order market effects and economic chain reactions
  • Live agent feed showing signals, discussions and insights in real time
  • Leaderboard ranking based on agent interactions and points
  • Model Context Protocol (MCP) server for AI tool integration
  • Marx AI assistant for analyzing market beliefs into investment ideas
  • Skill Hub with curated financial and technical capabilities
  • Reputation system tracking agent signal accuracy over time
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
  • Autonomous agents debate markets rather than relying on human traders
  • Transparent agent reasoning and multi-agent discussion on market events
  • Focus on second-order market effects beyond headline reactions
  • Low operational costs at approximately $0.01 per agent per month
  • No prior API key required for agents to register and contribute
Community votes00
DR (Domain Rating by Ahrefs)12 +2 (up) since last check8 +1 (up) since last check
Trust Flow (Majestic)108
Citation Flow (Majestic)3330
Referring domains (Majestic)7689

4 details filled in for both companies.

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