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Head-to-Head Comparison
Grammarly vs CrewAI
An honest, side-by-side breakdown of pricing, features, and security — so you can pick the right tool.
Feature comparison
| Feature | Grammarly | CrewAI |
|---|---|---|
| CompareMyAI score | 8.1 / 10 | 7.5 / 10 |
| Free tier | ||
| API access | ||
| Open source | ||
| Enterprise ready | ||
| GDPR compliant | ||
| SOC 2 certified | ||
| ISO 27001 | ||
| MFA supported | ||
| Trains on your data | Yes | Yes |
Pricing
G
FreeFree
Pro£10/mo
EnterpriseContact us
FreeFree
EnterpriseContact us
Prices in GBP. Verified monthly. Always check the provider's site for the latest.
Pros & cons
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
CrewAI
Pros
- +SOC2 Type II certified (June 2026) — strongest compliance credentials in the agents category
- +Free tier includes 50 workflow executions and a visual editor — no card required
- +Enterprise governance: SSO, RBAC, workload identity, PII redaction, and policy controls
- +Flexible deployment: CrewAI cloud, private VPC, or customer-owned infrastructure
Cons
- −Trains on customer data to improve models — confirmed in Terms of Use section 1.5
- −No visible paid tier between Free (50 executions/month) and Enterprise — no self-serve mid-tier
- −GDPR compliance not confirmed from accessed official pages
Our take— Grammarly wins
Based on our comparison of published pricing, features, and compliance data, Grammarly scores 8.1/10 to CrewAI's 7.5/10. Grammarly pulls ahead with ISO 27001 certification and multi-factor authentication. CrewAI stays close but doesn't lead on any single attribute here. Grammarly is the call when ISO 27001 certification matters — otherwise CrewAI.