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Chrome extension that drafts Gmail and Outlook replies in your own writing voice, learned from your sent mail.
ForthWrite is a Chrome extension that drafts email replies inside Gmail and Outlook, trained on a user's own sent messages so the output matches their normal tone rather than a generic AI voice. Free use is capped at 10 drafts a week; paid tiers add unlimited drafts, custom persona prompts, auto-drafting, batch processing, and a prompt-history feature the company calls Prompt Lab. A Teams plan bundles per-seat pricing with a shared persona and admin controls, and an Enterprise tier adds SSO and audit logging. The company doesn't disclose its country of registration on the site.
Standard is $15/month billed annually ($180/year), or $18/month with no commitment; the free plan is capped at 10 drafts a week.
Use tool ↗ForthWrite's pitch is replies that sound like you rather than like an AI wrote them, which depends entirely on how much of your sent mail it can learn from. It works only inside Gmail and Outlook through the Chrome extension, so anyone on a different mail client or browser is out of luck, and the free tier's 10 drafts a week runs out fast for a busy inbox.
Watch out: The Standard plan's advertised $15/month price requires annual billing; paying month-to-month costs $18/month instead.
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