
18 voice AI competitors analyzed. HeyDesk occupies uniquely defensible white space at the intersection of enterprise capabilities and SMB accessibility.
Enterprise platforms (Poly.ai at $150K+, Synthflow, Bland AI, Cognigy) serve Fortune 500 with infrastructure focus, pricing out 99% of businesses.UCaaS platforms (JustCall, VoiceSpin) bundle voice AI requiring full platform adoption.Managed services (Implement AI) require 60-90 day implementations.
SMB solutions split between inadequate (Marblism hides limits, Sintra has no voice), expensive (LastBot at 3x our cost), or impenetrably complex (Voice.AI's labyrinthine pricing). HeyDesk delivers enterprise-grade emotional intelligence + self-serve simplicity + accessible pricing to the massively underserved SMB market.
Annual Cost vs. Feature Quality/Capabilities
| HeyDesk | Voice.AI | Poly.ai | Implement AI | Marblism | Sintra | LastBot | |
|---|---|---|---|---|---|---|---|
| Annual Cost | $1.2-2.4K | Unclear | $150K+ | Unknown | $288-528 | $468-1.2K | $3.6-18K |
| Setup Time | 5 minutes | Minutes | 4-6 weeks | 60-90 days | Minutes | Minutes | Days |
| Voice AI | Some | ||||||
| Emotional Intelligence | |||||||
| Photo-Realistic Avatar | Cartoon | ||||||
| Self-Serve | |||||||
| Transparent Pricing | Hidden limits |
$150K+ annually - Fortune 500 focus
The enterprise gold standard. $750M valuation, clients include Marriott and FedEx. Unlimited voice minutes with 4-6 week implementations and dedicated customer success teams.
Owns its infrastructure with proprietary communications network. 65M+ calls handled, 99.99% uptime, sub-100ms latency. Targets BPOs and call centers with 10K+ monthly minutes.
"Own Your AI, Don't Rent It" - builds custom models from open-source for enterprises paranoid about IP protection. Up to 1M concurrent calls. Clients include Snapchat and Gallup.
Voice AI bundled with comprehensive communication suites
Cloud phone system with 6,000+ businesses. Voice AI is one component among dialers, SMS campaigns, team collaboration, and contact center capabilities.
Traditional answering service (20+ years) adding AI layer. Hybrid AI + human receptionists with seamless escalation. AI Voice Agent handles routine calls.
Consultative sales with extended implementations
Founded by Dragons' Den investor Piers Linney with £1.3M from Nigel Wray. 60-90 day pilot programs, named cartoon avatars (Ava, Lexi), 200+ integrations.
No-code automation platform with voice as one capability. 50+ languages, multi-agent workflows, 100+ pre-built templates across email, calls, and meetings.
Lower cost but critical limitations
Most affordable professional option. 24/7 answering, message taking, appointment booking. Targets solopreneurs and very small businesses.
"AI employees" at low prices. Reality: 5 of 6 are text-only. Voice limits exist but aren't disclosed. When exceeded, calls get hung up. Spam calls count against allowances.
12 AI helpers (Soshie, Cassie, Dexter). Reality: Zero voice agents - all text-based automation. Social media, data analysis, report generation only.
European voice AI with honest, transparent pricing. We respect that. But 60 minutes at $299 vs our 200 minutes at $99. No emotional intelligence or avatars.
Enterprise-grade voice stack targeting SMBs. Proprietary TTS/STT, 50+ voices, SOC-2/HIPAA/PCI compliant. Impressive tech, but pricing is incomprehensible - multiple products with unclear relationships (TTS subscriptions, per-minute charges, knowledge base credits).
Outbound sales automation platform for SDRs. TSR-compliant autodialer with parallelized dialing (3-8x), real-time coaching, voice cloning. Designed by team with 20+ years selling SaaS.
No competitor emphasizes prosody analysis or real-time emotional adaptation. Technical complexity creates barrier to fast-follower competition.
Enterprise platforms cannot match without destroying their sales model. Managed services cannot match without eliminating professional services revenue.
$99-199 sits below enterprise sales viability threshold. High enough for healthy margins. Low enough to avoid procurement, IT approval, budget battles.
Word-of-mouth within service business communities. Local business referrals compound as salons, restaurants, and tradesmen recommend to peers.
Enterprise call centre replacement ($150K+ budget)
Choose Poly.aiManaged AI with consultants (60-90 days, £50K+ budget)
Choose Implement AIVoice AI for SMBs with emotional intelligence, photo-realistic avatars, and 5-minute setup
Choose HeyDeskEnterprise-grade voice AI. SMB pricing. 5-minute setup.