Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
Rytr
Pros
+One of the cheapest unlimited-generation plans in the category
+Free forever tier with no credit card required
+35+ language support on Premium
+Simple, fast interface for short-form copy
Cons
−Fewer advanced features than Jasper or Copy.ai
−No confirmed SOC2 or enterprise SSO
−Data training policy not publicly confirmed
Grammarly
Pros
+SOC 2 Type II and ISO 27001 certified — strongest compliance in the writing category
+Works across browser, desktop, Word, Google Docs, and email with one install
+Pro tier confirmed at £10/mo in GBP — transparent UK pricing
+Explicit opt-out from AI model training available in account settings
Cons
−Trains on user writing by default — opt-out required
−GDPR compliance not explicitly confirmed on accessed official pages
−Free AI prompt limit (100/mo) may feel restrictive for daily users
Our take— Grammarly wins
Based on our comparison of published pricing, features, and compliance data, Grammarly scores 8.1/10 to Rytr's 6.8/10. Grammarly pulls ahead with SOC 2 certification and ISO 27001 certification. Rytr counters with GDPR compliance. Pick Grammarly if SOC 2 certification matters; pick Rytr if GDPR compliance matters.