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SidekickWriter vs Sudowrite

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Compare SidekickWriter and Sudowrite side-by-side. See how they stack up on features, pricing, and target market.

Image associated with SidekickWriter

SidekickWriter

Best for power users
Est. 2024   •  2-10 employees   •  Private

AI-powered platform that transforms ideas into full-length books, theses, and longform drafts in minutes while keeping drafts private and end-to-end encrypted.

Starts at $0

vs

Image associated with Sudowrite

Sudowrite

Best for power users
Est. 2020   •  11-50 employees   •  Private

Creative-writing focused AI assistant for fiction and long-form authors, emphasizing brainstorming, story-building and prose tools.

Starts at $10 / month

Has a free trial

Which should you choose?

SidekickWriter logo/icon

SidekickWriter

You want an AI-first, “book in an hour” workflow that turns loose ideas into full-length books, theses, or professional reports with automatic outlining and private, end‑to‑end encrypted drafts.

Sudowrite logo/icon

Sudowrite

You are primarily a fiction author who wants a mature creative-writing environment (Story Bible/Engine, Describe, Expand, Rewrite, Feedback, Visualize) built on a proprietary Muse model, and you’re happy to pay an ongoing subscription.

Typical cost comparison

Scenario: Single independent writer on a mid-tier plan, billed monthly.

SidekickWriter logo/icon

SidekickWriter

$20 per month

Sudowrite logo/icon

Sudowrite

$22 per month

SidekickWriter saves you $2 per month in this scenario.

Key differences

Category
SidekickWriter
Sudowrite
Why?
Pricing & Free AccessSidekickWriter offers a free forever tier plus paid Plus ($20) and Pro ($99) plans, whereas Sudowrite has a cheaper entry Hobby plan at $10 and caps at $44 for Max but only via paid, credit‑based tiers with a free trial, so which is cheaper depends on how much and how often you write.
Primary Use Case & AudienceSidekickWriter targets anyone who needs very fast long-form drafts across fiction, non-fiction, professional, and academic genres, while Sudowrite is narrowly optimized for fiction and creative storytellers.
Creative Fiction Tools & DepthSudowrite offers a deep suite of fiction-specific tools—Story Bible/Engine, Write, Describe, Expand, Rewrite, Feedback, Brainstorm, Visualize—built around its Muse model, providing more granular support for prose, pacing, and worldbuilding than SidekickWriter’s more linear book-drafting flow.
Long-form Automation & SpeedSidekickWriter emphasizes a four-step, mostly automated pipeline that can turn a single idea into a fully outlined, multi‑chapter manuscript in about an hour, whereas Sudowrite tends to be used to grow scenes and chapters inside an existing manuscript.
Privacy & Data HandlingSidekickWriter explicitly advertises end‑to‑end encrypted drafts that even the provider cannot open, while Sudowrite emphasizes that it does not train models on user work but does not market full end‑to‑end encryption.

Feature comparison

Feature
SidekickWriter
Sudowrite
Notes
Credit-based usage meteringSudowrite prices access with monthly AI credit allowances per plan, while SidekickWriter describes plan differences mainly as daily usage multipliers rather than explicit credit buckets.
Fiction-specific AI modelSudowrite’s Muse 1.5 model is trained specifically for fiction and creative writing, while SidekickWriter uses general models with genre presets but does not claim a fiction‑only model.
Mobile appSudowrite has at least an Android app for AI novel writing; SidekickWriter appears to be web-only as of late 2025.
Visualize / AI image generationSudowrite’s Visualize feature can generate images from your manuscript or descriptions, while SidekickWriter does not advertise built‑in image generation.
Story Bible / Story EngineSidekickWriter includes a character creator and chapter-by-chapter outline builder, whereas Sudowrite provides a dedicated Story Bible/Story Engine for maintaining characters, world details, and plot structure over long projects.
Third-party writing app integrationsG2 lists integrations for Sudowrite with tools like Scrivener and Ulysses; SidekickWriter does not yet highlight specific integrations.
One-click long-form book/thesis generationSidekickWriter’s 4‑step workflow can generate full multi‑chapter books and academic drafts from a single structured idea; Sudowrite can write long works but is geared toward expanding and refining scenes rather than auto‑generating an entire book at once.
Academic writing support with citationsSidekickWriter offers an academic mode for theses and research papers plus Auto Deep Search & Citation on higher tiers; Sudowrite focuses on fiction and does not include citation tooling.
End-to-end encrypted draftsSidekickWriter markets drafts as end‑to‑end encrypted so only the user can open them; Sudowrite stresses privacy but does not claim E2E encryption.
Free forever planSidekickWriter provides a free tier with limited usage and a lite model, whereas Sudowrite offers a generous free trial but no ongoing free plan.

Review Consensus

Sudowrite

"Expert and marketplace reviews strongly praise Sudowrite’s fiction-focused feature set and Story Bible, while smaller pools of end users report mixed satisfaction due to pricing, glitches, and support—yielding an overall “powerful but imperfect” consensus. "

Trustpilot

Based on 11 reviews

2.5 /5
Pros
  • Some users find the app fun to use and appreciate its organizational tools for chapters and worldbuilding.
  • A few reviewers feel the pricing is acceptable relative to the value they get.
  • When it works, it can help break down novels into chapters and beats in a structured way.
Cons
  • Multiple users report glitches or broken features that still consume credits.
  • Customer support and refund handling are frequently described as slow or unsatisfactory.
  • Several reviewers criticize the AI’s prose as bland, clichéd, or weaker than their own writing.

Data as of 3/22/2025

G2

Based on 1 reviews

5 /5
Pros
  • The single review praises Sudowrite as the best novel-writing AI solution they’ve tried.
  • Story Bible integration with the manuscript is highlighted as reducing the need for multiple tools.
  • AI can assist both at outline level and in-manuscript, helping develop many aspects of the story in one place.
Cons
  • Reviewer notes limited UI customization, with text and panel sizes sometimes feeling too large.
  • Navigation and searching within the interface can be tedious due to layout constraints.
  • Broader integrations set is still relatively small compared with some general-purpose AI tools.

Data as of 1/21/2025

Pros
  • Reviewers praise Sudowrite as a genre-defining assistant tailored specifically to fiction authors.
  • The Story Bible/Story Engine is described as a game-changer for maintaining long-form narrative consistency.
  • Its creative prose quality is rated higher than many general-purpose AI tools because of its fiction focus.
Cons
  • It is considered more expensive than some generic AI writing assistants.
  • Advanced features like the Story Engine carry a noticeable learning curve for new users.
  • The tool is seen as less suitable for non-fiction or business writing compared with marketing-focused AI platforms.

Data as of 4/4/2025

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