Henji vs Prosed: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Henji and Prosed — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Henji

Freemium

Mac app that drafts chat and email replies in your own voice across Slack, LINE, Gmail, and Messages.

Voice Matching: Learns your usual tone and phrasing over time so replies read as you-ish rather than AI-ish.
Tone Modes: Switch between Polite, Casual, Team, and Friends styles so each reply fits the relationship and channel.
Multi-Channel Coverage: Works across Slack, LINE, Gmail, and Messages so chat and email replies are handled in one place.
Scribble-to-Reply: Type a short note or intent and Henji expands it into a complete, context-aware message.
Multilingual: Supports multiple languages including English and Japanese for replies.

Faster Messaging: Knocking out quick chat and email replies during a busy day without sounding robotic.
Difficult Replies: Politely declining requests or negotiating deadlines while keeping the tone warm.
Team Communication: Keeping internal Slack threads fast and to the point with a team-appropriate tone.
Cross-Language Correspondence: Drafting replies in English or Japanese for international contacts.

Freemium

Assembles your newsletters, posts, and ideas into a publish-ready book that preserves your voice and expertise.

Content Aggregation: Imports and consolidates content from newsletters, blog posts, and notes into a single project to avoid manual copy-paste and keep original chronology and context.
Structure & Organization: Automatically splits imported material into chapters and sections, suggests ordering, and generates a table of contents to create a logical book flow.
Voice Preservation: Maintains the author's original tone and phrasing across assembled pieces, minimizing heavy rewriting while unifying style where needed.
Formatting & Layout: Applies consistent book templates, typography, headings, pagination, and front/back matter to produce a professional, publish-ready layout.
Export to Book Formats: Produces final outputs suitable for publishing workflows, such as print-ready PDFs and common ebook formats, reducing preparation time for distribution.
Inline Editing Workspace: Provides an editor to refine, reorder, and edit content within the book context so authors can make targeted changes without leaving the project.
Metadata & Front Matter Generation: Creates or suggests front matter elements (title page, author bio, acknowledgements) and basic metadata to streamline publishing steps.
Assemble newsletters, posts, and ideas into a single book