Head-to-head · Customer Support
Zendesk vs Kayako
Which one to pick in 2026 — comparing 🇺🇸 Zendesk with the European alternative 🇪🇺 Kayako on the things that actually decide who can read your data.
🇺🇸 Zendeskvs🇪🇺 Kayako
Verdict
Who has stronger privacy guarantees by law?
Kayako — GDPR-native and outside the US CLOUD Act / FISA 702 reach.
Which one encrypts your data end-to-end by default?
Neither ships full E2E by default — check the table for nuance.
Which one tracks you for ads?
Zendesk relies on ad tracking. Kayako doesn't.
Which one is open source?
Kayako is not fully open source — check details.
Side-by-side
Zendesk vs Kayako — full comparison
Criteria
🇪🇺 Kayako
🇺🇸 Zendesk
Headquarters
London, United Kingdom
United States
Jurisdiction
United Kingdom
United States (US CLOUD Act)
Data location
EU, US (user selectable)
United States
GDPR-native
Yes
No
CLOUD Act / FISA exposed
No
Yes
Ad tracking
No
Yes
End-to-end encryption
No
No
Open source
No
No
Ownership
Private (part of ESW Capital)
US Corporation
Founded
2001
0
Make the switch
Try Kayako instead of Zendesk
Kayako offers a unified customer service platform for help desk, live chat, and self-service support.
Other European alternatives to Zendesk