Letterbot AI Chrome Extension
Limited to Gmail, may not suit users outside this platform.
At a glance
Starts at
$5 per month
Includes 100 daily requests. Beyond that, additional requests cost extra.
Free tier
Yes, limited
Platforms
Web
Best for
Gmail email writers
Not for
Email clients outside gmail
4.0 out of 5
Scored by a Toolio reviewer after real useOur verdict
Letterbot AI excels at writing emails and replying contextually. It works well within Gmail but falls short without a free tier or broader compatibility.
✓What it does well
Smart repliesContextual smart reply suggestions based on the email thread.
Multi-language supportAid writers in 13 different languages.
Custom writing tonesChoose from five tones to match your communication style.
✕Where it falls short
Limited to GmailOnly integrates with the Gmail compose window, not other email clients.
No free plan beyond basicRequires payment for more than five daily requests even in its Basic plan.
Extra templates cost extraCustom templates are only available on the Professional tier, adding to costs.
Key features
Free tierOffers a free version with five daily requests.
Pricing tiersAvailable in Basic and Professional plans for varying request limits.
Template libraryProvides ready-made templates to help start writing emails.
Smart Thread Contextautomatically extracts email thread context