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Head-to-Head Comparison
Fathom vs Grammarly
An honest, side-by-side breakdown of pricing, features, and security — so you can pick the right tool.
Published Last updated
- Fathom starts at US$19/mo and Grammarly at £10/mo — published in different currencies, so not a like-for-like figure.
- On privacy, Grammarly offers multi-factor authentication where Fathom does not.
- Fathom is best for businesses needing enterprise-ready AI productivity; Grammarly for teams building AI writing into their products.
Fathom
AI Productivity
7.5/ 10
Free · Free tier
Best for businesses needing enterprise-ready AI productivity
Visit FathomSee all AI Productivity Tools →G
Grammarly
AI Writing
8.1/ 10
Free · Free tier
Best for teams building AI writing into their products
Visit GrammarlySee all AI Writing Tools →Some “Visit” links are affiliate links. How we earn →
Feature comparison
| Feature | Fathom | Grammarly |
|---|---|---|
| CompareMyAI score | 7.5 / 10 | 8.1 / 10 |
| Free tier | ||
| API access | ||
| Open source | ||
| Enterprise ready | ||
| GDPR compliant | ||
| Vendor holds SOC 2 | ||
| Vendor holds ISO 27001 | ||
| MFA supported | ||
| Trains on your data | Yes | Yes |
Certifications may only cover business or enterprise plans. Check the vendor’s trust page for your plan.
Grammarly comes out ahead — and you can try it free.
Try Grammarly freeAffiliate link · how we earn
Pricing
Price checked with vendor on
FreeFree
PremiumUS$20/mo ≈£14.98/mo
TeamUS$19/mo ≈£14.23/mo
BusinessUS$34/mo ≈£25.47/mo
Enterprise—
G
Always check the provider's site for the latest pricing.
Pros & cons
Fathom
Pros
- +Free tier includes unlimited recordings and AI summaries — no credit or time limit
- +Business tier auto-syncs meeting outcomes to CRM fields — no manual entry required
- +DPA available (fathom.ai/dpa) and BAA for HIPAA — structured data handling programme
- +Team and Business tiers include deal insights and coaching metrics for sales teams
Cons
- −Trains on de-identified user data by default — opt-out required in account settings
- −GDPR and SOC2 not explicitly confirmed on accessed official pages
- −Meeting-focused only — not a general-purpose productivity or writing tool
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 Fathom's 7.5/10. Grammarly pulls ahead with multi-factor authentication and API access. Fathom stays close but doesn't lead on any single attribute here. Grammarly is the call when multi-factor authentication matters — otherwise Fathom.
Frequently asked questions
Does Fathom train on your data?
Based on published vendor information, Fathom may use your data to help train its models. Training is sometimes opt-out, or switched off on paid and business plans, so review the privacy settings in your account.
Does Grammarly train on your data?
Based on published vendor information, Grammarly may use your data to help train its models. Training is sometimes opt-out, or switched off on paid and business plans, so review the privacy settings in your account.
Are Fathom and Grammarly GDPR compliant?
Neither Fathom nor Grammarly is recorded as GDPR compliant in our data. If GDPR matters to you, confirm the current position directly with each vendor before relying on it.
Do Fathom and Grammarly have a free tier?
Yes — both Fathom and Grammarly offer a free tier, so you can try each one before committing to a paid plan. Free tiers usually come with usage limits.
Which has an API, Fathom or Grammarly?
Grammarly offers API access, while Fathom is not recorded as offering a public API in our data. For programmatic integration, Grammarly is the better fit.