Agentic AI Comparison:
Smoove Call vs Synthflow AI
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Introduction
This report provides a detailed comparison between Synthflow AI and Smoove Call, two no-code platforms for building AI voice agents focused on automating phone calls for customer service, lead generation, and appointment scheduling.
Overview
Smoove Call
Smoove Call is a no-code AI phone call system enabling businesses to automate customer service, lead generation, and appointment scheduling through simple interfaces. Limited public details are available, positioning it as a straightforward tool for basic voice automation use cases.
Synthflow AI
Synthflow AI is a leading no-code voice AI platform offering drag-and-drop flow builders, sub-800ms latency, 300+ voices with cloning, multilingual support, CRM integrations (HubSpot, Salesforce, etc.), built-in telephony, and enterprise features like white-labeling for agencies. It excels in real-time responsiveness and complex conversation flows without coding.
Metrics Comparison
autonomy
Smoove Call: 7
Supports autonomous no-code automation for customer service, leads, and scheduling, but lacks detailed evidence of advanced logic, integrations, or telephony capabilities compared to competitors.
Synthflow AI: 9
High autonomy with advanced features like multi-prompt flows, conditional logic, API calls, voicemail detection, post-call actions, and 24/7 handling of inbound/outbound calls without developer support.
Synthflow AI offers superior autonomy through visual complex flow design and built-in real-time actions, while Smoove Call provides solid basics but less depth.
ease of use
Smoove Call: 8
No-code platform designed for easy building of AI phone systems, accessible for business users automating standard tasks like scheduling.
Synthflow AI: 9
User-friendly drag-and-drop interface, visual builder for non-technical users, quick setup in hours, and positive reviews (G2 4.5/5) highlight simplicity for launching agents without coding.
Both emphasize no-code ease, but Synthflow's proven interface, natural voice quality, and CRM sync give it a slight edge in real-world usability.
flexibility
Smoove Call: 6
Flexible for core automations like leads and scheduling, but no specifics on voices, languages, integrations, or advanced telephony features available.
Synthflow AI: 9
Exceptional flexibility with 30+ languages, voice cloning, 200+ integrations (Zapier, HubSpot), custom workflows, SIP trunking, batch calling, and visual conditional logic for diverse use cases.
Synthflow significantly outpaces Smoove Call in flexibility due to extensive voices, multilingual cloning, and broad ecosystem support.
cost
Smoove Call: 7
No pricing details available; assumed competitive as a no-code tool, but lacks evidence of cost savings or transparency compared to Synthflow.
Synthflow AI: 8
Transparent pay-as-you-go pricing with low per-minute rates implied (up to 65-70% savings vs. alternatives), no fixed high subscriptions, and high ROI from automation (e.g., 60% workload reduction).
Synthflow demonstrates stronger value through documented savings and scalability; Smoove Call's cost-effectiveness is unverified.
popularity
Smoove Call: 5
Minimal visibility; only mentioned in niche comparisons with no user metrics, partnerships, or reviews indicating lower adoption.
Synthflow AI: 9
High popularity evidenced by enterprise partnerships (Freshworks, Medbelle), 500k+ monthly calls, G2 ratings, agency white-labeling, and frequent comparisons as top alternative in 2025/2026 reviews.
Synthflow AI dominates in popularity with proven scale and endorsements, while Smoove Call remains lesser-known.
Conclusions
Synthflow AI outperforms Smoove Call across all metrics, particularly in flexibility, autonomy, and popularity, making it the superior choice for businesses seeking robust, scalable voice AI agents. Smoove Call suits simple no-code needs but lacks the depth and evidence of Synthflow's enterprise-grade capabilities.