Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
Relevance AI
Pros
+No-code builder for complex multi-agent workflows
+Trusted by large enterprises including Canva and Databricks
+2,000+ integrations including calling and meeting agents
+Built-in A/B testing and agent evaluations
Cons
−Enterprise-only pricing — no published self-serve tiers
−GDPR and SOC2 not confirmed from official sources
−Not suitable for individuals or small teams
QuillBot
Pros
+Free tier paraphrases up to 125 words with no time limit
+9 paraphrase modes including Formal, Simple, Creative, and Expand
+Premium at £4/mo (annual) is the lowest price in the writing category
+Plagiarism checker and AI Detector bundled with Premium
Cons
−GDPR and SOC2 not confirmed from official sources
−Free tier capped at 125 words per paraphrase — limiting for longer content
−Focused on paraphrasing — not a full-document AI writing assistant
Our take— Relevance AI wins
Based on our comparison of published pricing, features, and compliance data, Relevance AI pulls ahead with multi-factor authentication and API access. QuillBot counters with a free tier. Relevance AI scores 7.5/10 to QuillBot's 7.3/10. Pick Relevance AI if multi-factor authentication matters; pick QuillBot if you need a free tier.