Anthropic (Claude) vs Fastmail
Based on our analysis, Fastmail is the more privacy-respecting choice overall.
BACK →| Category | Anthropic (Claude) | Fastmail |
|---|---|---|
| Overall | B · 72/100 | B+ · 79/100 |
| What they collect | Mixed (65) | Mixed (74) |
| Who they share it with | Positive (78) | Mixed (76) |
| What you can do | Positive (78) | Positive (82) |
| What they promise | Positive (82) | Mixed (80) |
Anthropic collects identity and account data, all prompts and responses, and coding sessions. Consumer users can opt in to having conversations used for model training with data retained up to 5 years. API and commercial customers are unaffected: their data is never used for training. With training off, 30-day retention for safety then deleted. No advertising business; data never sold. Dedicated Privacy Center at privacy.claude.com.
View full analysis →Fastmail is a paid email provider that doesn't sell your data or serve ads, has clear retention periods and a transparency report — but unlike Proton, staff can technically access your emails, data moves through US and Indian infrastructure, and IP logs are kept for a year.
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