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Act! vs Flagsmith: 2026 Comparison

Act! Flagsmith
Overview A long-standing CRM and marketing automation platform trusted by small and midsize businesses for over 35 years. An open-source feature flag and remote config service with A/B testing and analytics for managing feature releases.
Pricing Subscription ($30-$50/user/month) Freemium (Free-$45/seat/month)
Key Features
  • Contact management
  • Opportunity tracking
  • Marketing automation
  • Custom dashboards
  • Mobile access
  • Integration
  • emarketing
  • Calendar management
  • Feature flags
  • Remote config
  • A/B testing
  • Segments
  • Audit logs
  • Open source
  • Self-hosted
  • Analytics
Pros
  • Long track record
  • On-premise option
  • Good for small businesses
  • Established user base
  • Open source
  • Self-hosted option
  • Affordable
  • Good feature set
Cons
  • Interface feels dated
  • Limited modern integrations
  • Marketing features are basic
  • Mobile app is limited
  • Smaller community
  • Fewer SDKs
  • Limited A/B testing
  • Newer platform