Head-to-Head Comparison

Grapphen Vox vs OpenPhone

Why agencies and scaling recruitment operations choose Grapphen Vox over OpenPhone for conversational Sofia AI, true ATS pipeline integration, and enterprise telephony.

Enterprise Voice AI

Grapphen Vox

$9.99 / user / mo

✓ Real-Time Sofia Voice AI — autonomously screens candidates
✓ Deep ATS Integration — logs call recordings to candidate timeline
✓ Native WhatsApp Business — integrated 2-way messaging
✓ Windows Desktop & Android Apps with push notifications
✓ Tier-1 Carrier Attestation with STIR/SHAKEN A-Level

Get Started with Grapphen Vox →

Startup VoIP App

OpenPhone

$19 – $33 / user / mo

✕ Expensive starter pricing for small recruitment teams
✕ No conversational Voice AI agent (only simple auto-replies)
✕ No native ATS candidate profile timeline synchronization
✕ Lacks native WhatsApp 2-way business integration
✕ Strict per-message international fees

Compare Enterprise Features

Capability Comparison Matrix

Comparing telephony performance and AI features head-to-head.

Feature	Grapphen Vox	OpenPhone
Starting Price	$9.99 / user / mo	$19.00 / user / mo
Conversational AI Voice Screen	✅ Sofia AI Agent Built-In	❌ Not Available
2-Way WhatsApp Business CRM	✅ Native CRM Timeline	❌ SMS Only
Desktop (.exe) & Android (.apk)	✅ Full Native Builds	⚠️ Electron App
Grapphen ATS Integration	✅ Real-Time Bi-Directional	❌ Third-Party Webhook Only