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M91 vs Spaces

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

M91 compared with Spaces
DetailM91 logo M91Spaces logo Spaces
What it doesHuman-in-the-loop approval for AI agents Communication infrastructure for AI agents
StageNot given Not given
FoundedNot given Not given
Based inNot given US
Pricing modelFree Freemium
PricingFree forever with all features included Free plan: 1 connected account, 25 actions a day (50 with card on file), no card required. Pay as you go: $9 per connected account per month with 1,000 actions per account included, then $5 per 1,000 additional actions, $4 per 1,000 above 100,000 and $3 per 1,000 above 1,000,000 in a month.
Key features
  • Alerts on iPhone and Android with answer buttons
  • Phone call escalation for high and critical alerts
  • Breaks through silent mode and Do Not Disturb
  • Attachments and notes on every alert
  • Broadcast to a channel with one person taking ownership
  • See who acted and who ignored alerts
  • Answer buttons set by you or your AI
  • Callback webhooks to return answers to your code
  • Setup via pasted prompt or API key-free send link
  • Integration with AI frameworks, automation platforms and HTTP API
  • One inbox for multiple channels (Instagram, WhatsApp, LinkedIn, Messenger, TikTok)
  • Scheduled messages with local time and working hours control
  • Auto-replies and routines triggered by keywords or time
  • Comment-to-DM and comment reply handling
  • Hand-over conversations to team members
  • Pause and approval controls for all sending
  • Follow-ups that stop when recipient replies
  • Daily limits, natural pacing and warm-up for new accounts
  • Post and schedule publishing on Instagram and LinkedIn
  • Multi-account management with per-account limits
What makes it different
  • Full-volume alerts that interrupt even when phone is silenced
  • No SDK, API key or card required to start
  • Free forever with every feature for every team member
  • Escalates to phone calls for critical alerts that go unanswered
  • Works with existing AI agents, workflows and monitoring tools
  • Integrates with any AI agent (Claude, ChatGPT, Grok, Cursor, Codex) without requiring code
  • Automatically enforces platform safety limits to reduce account restriction risk
  • Full user control with drafts, pause and team hand-over options
  • Free plan with no card required and no end date
  • Supports AI-driven lead generation and customer support workflows
Community votes00
DR (Domain Rating by Ahrefs)73 no change since last check2 no change since last check
Trust Flow (Majestic)14
Citation Flow (Majestic)122
Referring domains (Majestic)016

5 details filled in for both companies.

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