ForthWrite vs Jetwriter AI

ForthWrite drafts email replies using a writing profile learned from a user's sent email. The free plan works with Gmail and Outlook on the web, while an Outlook add-in is available for Outlook desktop on Windows or Mac. Free accounts get 10 drafts per week; the plan excludes custom persona, auto-draft, batch drafting, coaching, analytics, and dictation. Pro includes unlimited drafts, auto-draft, batch drafting, custom persona, RAG, and dictation. It is listed at $24 a month billed annually, and the page also shows $29/mo. Teams has a two-seat minimum and includes Pro features, a shared team persona, Prompt Lab, review records, and team analytics. Slack drafting requires Standard or Pro. A Claude connector can produce a draft or contact summary, but does not send mail or open a mailbox. ForthWrite says it passed Google's CASA Tier 2 assessment for its restricted Gmail read-only scope. Its privacy policy says routine thread content is not kept after a draft is returned, while sent-email snippets are stored to learn the user's voice. Attachments are not currently read or analyzed.

Jetwriter AI is a personal writing assistant available through a browser extension and web app. It can help compose emails and messages, correct grammar, improve or translate writing, and summarize or explain selected text. Users can create a profile, define writing styles, and use memory based on earlier conversations. The service can search the web, read live pages, and chat with files in any format; it lists GPT 6 Series, Claude Opus and Sonnet, and Gemini Pro among its models. Integrations for replying in the user's voice include Gmail, WhatsApp Web, LinkedIn, Outlook, Zoho, Slack, Freshdesk, and Zendesk. Gmail auto-drafting is optional; drafts are saved for review, editing, and sending. Its privacy notice says Gmail and Calendar data is used only for enabled drafting features, not advertising or AI training, and that email bodies and calendar events are not stored on its servers. The free plan provides 15 regular model responses monthly and no advanced responses. Elite costs $18 a month; Ultra costs $39 a month. Chrome, Edge, Brave, Opera, and Vivaldi extensions are listed, while Safari and Firefox are marked as coming soon.