Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
HeyGen
Pros
+SOC 2 Type II certified with a dedicated Data Protection Officer
+175 languages with AI lip-sync — broadest language support in category
+Free tier includes 3 videos and a custom digital twin
+API access from Creator tier for workflow automation
Cons
−Uses user content to train models by default — opt-out required
−Credit costs for Avatar IV/V are 20× higher than Avatar III
−Business tier at £117/mo is expensive for smaller teams
Sudowrite
Pros
+Explicit commitment to never training on user manuscripts — confirmed on pricing page
+Specialised fiction tools: character generation, outline, scene expansion
+Claims no rights over user content or generated output
+30+ language support across all plans
Cons
−No free tier — paid plans only
−GDPR and SOC2 not confirmed from official sources
−Fiction-only focus — not suited for marketing copy, email, or business writing
Our take— HeyGen wins
Based on our comparison of published pricing, features, and compliance data, HeyGen scores 8.0/10 to Sudowrite's 7.1/10. HeyGen pulls ahead with GDPR compliance and SOC 2 certification. Sudowrite counters with a no-training-on-your-data policy. Pick HeyGen if GDPR compliance matters; pick Sudowrite if a no-training-on-your-data policy matters.