Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
Gamma
Pros
+SOC 2 Type II certified and GDPR-compliant with DPA available
+Generous free tier with no credit card required
+Exports to PDF, PPTX, and Google Slides for broad compatibility
+Creates presentations, documents, and web pages from a single prompt
Cons
−Free plan limited to 400 one-time credits — not recurring
−Advanced AI image models require Plus tier or above
−Less suited to highly branded enterprise templates
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 pulls ahead with ISO 27001 certification. Gamma counters with GDPR compliance. Grammarly scores 8.1/10 to Gamma's 8.0/10. Pick Grammarly if ISO 27001 certification matters; pick Gamma if GDPR compliance matters.