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Acoustic vs WorkOS: 2026 Comparison

Acoustic WorkOS
Overview Former IBM Watson Marketing platform offering email, mobile, and cross-channel campaign management for enterprises. An API platform for adding enterprise features like SSO, directory sync, and audit logs to applications.
Pricing Subscription (Custom) Freemium (Free-$25/connection/month)
Key Features
  • Email marketing
  • Mobile push
  • SMS
  • Campaign management
  • Personalization
  • Analytics
  • Journey builder
  • Single Sign-On
  • Directory sync
  • Admin portal
  • Audit logs
  • MFA
  • User management
  • Organizations
  • Fine-grained authorization
Pros
  • Enterprise features
  • Cross-channel
  • IBM heritage
  • Scalable
  • Easy SSO implementation
  • Enterprise-ready
  • Good documentation
  • AuthKit UI
Cons
  • Expensive
  • Complex
  • Transition from IBM
  • Per-connection pricing
  • Enterprise-focused
  • Limited for consumer apps
  • Newer platform