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Follow Up Ace vs REX

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

Follow Up Ace compared with REX
DetailFollow Up Ace logo Follow Up AceREX logo REX
What it doesAI assistant for Follow Up Boss that turns CRM context into thoughtful follow-up drafts ready for review A coding agent that runs your whole Windows PC by voice or text
StageStartup Not given
Founded2024 Not given
Based inUS ES
Pricing modelFreemium Free
PricingFree: $0/month with 15 AI messages per day, Ace Win Score and Churn Risk fields, and 9 Smart Lists. Ace: $25/seat/month with unlimited messages, Daily Brief, Next Moves, and mobile workspace. Ace Pro: $55/seat/month adding voice, Claude/ChatGPT connector, one-tap AI drafts, and Zillow playbook. Ace Free. Windows 10 or later, 64-bit.
Key features
  • AI Chat with contact context and CRM queries embedded in Follow Up Boss
  • Daily Brief with tasks, appointments, and contacts needing attention
  • Smart Lists pre-ranked by AI scores for speed-to-lead and lead prioritization
  • MCP connector for Claude and ChatGPT to access CRM tools in third-party AI apps
  • Zillow speed-to-lead playbook with 5-minute response timer and alert escalation
  • Command Center queue sorted by GCI at risk for team-wide revenue management
  • Automations with Fair Housing compliance scanning before sends
  • Verifies results before completion
  • Voice and text input
  • Runs on Windows 10 or later, 64-bit
  • Compatible with any AI model you choose
  • Multi-step task automation
  • Checks live results in real applications
What makes it different
  • Draft follow-ups shaped by Follow Up Boss context and saved voice preferences rather than generic AI
  • Works across multiple surfaces—inside FUB, on iPhone app, and in Claude/ChatGPT via MCP—with consistent memory across all
  • Fair Housing-trained AI with compliance checks built into drafts and automations
  • Unified team operations with account-wide Ace Trove add-on providing revenue-focused views and predictive fields
  • Operates the entire Windows desktop, not just the terminal
  • Verifies task completion by checking real application results
  • Completely free with no subscription required
  • Voice control for hands-free operation
  • Measured performance on public benchmarks
Community votes00
DR (Domain Rating by Ahrefs)31 +1 (up) since last check2 no change since last check
Trust Flow (Majestic)52
Citation Flow (Majestic)2524
Referring domains (Majestic)6115

6 details filled in for both companies.

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