Spellbook vs Contractbook
A detailed comparison to help you choose between Spellbook and Contractbook.
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Verdict: Spellbook wins
Spellbook scores 4.1/5, edging out Contractbook at 3.9/5. Transactional lawyers and in-house counsel who draft and negotiate contracts in Microsoft Word and want AI review, redlining and benchmarks without an enterprise platform budget.
Spellbook AI contract review in Microsoft Word | Contractbook Smart contract management with AI | |
|---|---|---|
| Rating | 4.1 (1 review) | 3.9 (1 review) |
| Pricing Model | paid | freemium |
| Starting Price | From $99/mo | Free tier available |
| Best For | Transactional lawyers and in-house counsel who draft and negotiate contracts in Microsoft Word and want AI review, redlining and benchmarks without an enterprise platform budget. | Growing small and mid-sized companies whose main contract problem is visibility — what is signed, what it says, and what renews — rather than legal negotiation. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | team features | free tierteam features |
| Visit Spellbook → | Visit Contractbook → |
Spellbook
Pros
- + Review pass marked up a 40-page services agreement with seven specific risk flags and usable one-click redlines in under fifteen minutes in my test
- + Benchmarks positions against market-standard language — negotiation context I expected to underuse and now rely on
- + Lives inside Microsoft Word, so lawyers keep their documents, styles and workflow; no new platform to learn
- + Playbooks turn individual review habits into repeatable team standards, which is what makes it a firm tool rather than a personal one
- + Far below Harvey-class pricing in every third-party comparison, with SOC 2 Type II and zero-data-retention terms on the trust side
Cons
- - No published rate card — third-party estimates scatter from $89 to $350 per user per month, so budgeting requires a sales conversation
- - Word-only: no web app, no Google Docs support, which excludes Google Workspace shops entirely
- - Suggested replacement language skewed conservative on a bespoke indemnity structure and needed rewriting
- - Sidebar slowed on document switching and one long exhibit in my test — heavy-document users should trial their worst case
- - Associate (multi-document agent) is new as of the 2026 expansion and should be piloted before trusting it with real diligence volume
Contractbook
Pros
- + Post-trial limited free plan rather than hard lockout — unusual retention design per contractbook.com/pricing
- + AI Import extracts structured fields from uploaded PDFs with OCR for scans (Centralize and up)
- + Praise for ease of use and support is consistent across G2 (4.7, 75 reviews) and Capterra (4.7, 78 reviews)
- + Unlimited eSignatures within the per-tier annual contract caps (100/350/500 per year)
- + Automation layer plus Zapier (3,000+ apps), Make.com, HubSpot, Pipedrive and Salesforce hooks
Cons
- - No generative drafting or legal research AI — the intelligence is extraction and reminders only
- - Centralize and Accelerate pricing is quote-based on the public site; budget discovery requires a call
- - Dynamic templates with conditional logic and full automations gate at Accelerate, not Centralize
- - Annual signed-contract caps (100/350/500) bound heavy users; upload cap is 50 on Essential
- - AI extraction accuracy is not benchmarked publicly — unverifiable before a pilot
Frequently Asked Questions
Which is better, Spellbook or Contractbook?▼
Spellbook scores higher at 4.1/5 vs 3.9/5 for Contractbook, making it the better-rated option in our comparison.
What is the difference between Spellbook and Contractbook?▼
Spellbook: AI contract drafting and review tool that works directly inside Microsoft Word to suggest, review, and redline contracts. Contractbook: Contractbook is contract management software for storing, drafting and tracking agreements in one place, with reminders for renewals and deadlines.
Is Spellbook or Contractbook more affordable?▼
Spellbook starts at €99/mo, Contractbook starts at €0/mo. Check the comparison table above for current pricing.
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