Z
ZKayako vs Synthflow
Pricing, features, platforms and who each one suits — side by side.
K
Choose Kayako if…
- you're in its core audience: customer support teams, e-commerce and retail businesses
S
Choose Synthflow if…
- you need an API to build on
- you're in its core audience: contact centers, bpos
Side by side
Feature Kayako Synthflow
Pricing modelPaidContact for pricing
Starting price——
Free plan
Free trial
API
Open source
Security and complianceSOC 2 Type II, GDPR—
Omnichannel inbox—
Human handoff—
AI takes actions—
Shopify/ecommerce data—
Help center/portal—
PlatformsWebWeb, API
CategoryCustomer SupportVoice Agents
CompanyESW Operations, LLC · United States · since 2001Synthflow AI
Full feature lists
K Kayako
- AI agent that drafts replies and closes tickets
- Takes actions like refunds and account creation
- Omnichannel inbox for email, chat, social and voice
- No-code routing, assignment and escalation workflows
- Knowledge base with semantic search and help center
- SLA management and support analytics
- Works on top of Zendesk, Freshdesk, Intercom, Salesforce
- SOC 2 Type II, GDPR, SSO/SAML and audit logs
S Synthflow
- Inbound and outbound AI phone agents
- Response time under half a second, with interruption handling
- Language switching during a call
- Warm handoff to human agents with full transcript
- Appointment booking, voicemail detection and SMS follow-ups
- 200+ integrations including Salesforce, HubSpot, Zendesk
- Pre-launch testing and staged rollout with approval
- US, EU and Latin America hosting regions
Their home pages
What each vendor shows first: the pitch, the plans and the sign-up.
Kayako · kayako.com
Synthflow · synthflow.aiWhat you'd pay
The cheapest plan that fits, per month, billed yearly where the plan offers it.
Kayako
Kay (AI support agent)$1 per resolved ticket
Kayako OneCustom
Synthflow
EnterpriseCustom
Strengths and limitations
Kayako
- Kay is billed only for tickets it resolves without a human
- No seat or setup fees for Kay
- Works on top of existing help desks, so no migration is needed
- Lists SOC 2 Type II, GDPR and SSO/SAML support
- Kayako One pricing is only available through sales
- No free trial mentioned
- No public API is described on the site
Synthflow
- SOC 2 Type II, ISO 27001, PCI DSS and HIPAA BAA compliance
- Works with major phone systems and SIP trunks
- White-label deployment with per-client workspaces
- Retention controls can delete recordings and transcripts after 30 days
- No free plan or trial
- Sold only as an annual enterprise agreement
- No published prices or per-minute rate
- SMS and WhatsApp limited to US workspaces
More comparisons
Other options to consider
ZZ
Free trial
F
FHelpdesk ticketing with AI agents and agent copilot for customer service teams
From $19/mo
F
From $19/mo
F
Helpdesk ticketing with AI agents and agent copilot for customer service teams
Customer Support
I
IAI customer agent that resolves support, sales and ecommerce conversations
From $49.50/mo
I
From $49.50/mo
I
AI customer agent that resolves support, sales and ecommerce conversations
Customer SupportAPI
G
GG
From $10/mo
T
TT
From $24.17/mo
T
AI customer service and live chat that answers questions and drives store sales
Customer SupportAPI
Y
YAI agents that resolve ecommerce support tickets, pre-sale questions and social DMs
From $1200/mo
Y
From $1200/mo
Y
AI agents that resolve ecommerce support tickets, pre-sale questions and social DMs
Customer Support
Facts from each vendor's public pages, prices checked Oct 26, 2026. Editorial policy