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Legal · head to head

Smokeball vs Spellbook

Smokeball logo

Smokeball

Legal

Practice management for small law firms with automatic time capture

From
On request
Rated
-
Spellbook logo

Spellbook

Legal

Contract drafting and review assistant inside Microsoft Word

From
On request
Rated
-

The short version

  • Each has a real cost: Smokeball requires a Windows desktop component for automatic time capture, so it is not browser-only like its competitors; Spellbook it publishes no accuracy figure for its own output and no independent evaluation exists, so a firm must run its own assessment on real agreements.
  • They diverge on capability: Smokeball covers Automatic time capture, Spellbook covers Word add-in drafting.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Smokeball and Spellbook actually diverge.

Attributes where Smokeball and Spellbook differ
AttributeSmokeballSpellbook
PlatformsWindows, Web, iOS, AndroidWindows, macOS, Web

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Legal).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Smokeball

  • Automatic time capture
  • Matter management
  • Document automation
  • Billing and trust accounting

Only in Spellbook

  • Word add-in drafting
  • Contract review
  • Benchmarks against market standards
  • Question answering
  • Named model providers

What people use each for

The jobs each tool is most often brought in to do.

Smokeball

  • Firms billing hourly that lose revenue to unrecorded timenot Spellbook
  • Small practices replacing paper matter files and spreadsheetsnot Spellbook
  • Firms needing court form automation for high-volume matter typesnot Spellbook

Spellbook

  • Transactional lawyers drafting commercial agreements in Wordnot Smokeball
  • In-house teams reviewing inbound contracts without a contract lifecycle systemnot Smokeball
  • Lawyers who want a first pass at redlines before applying their own judgementnot Smokeball
  • Firms that need to know which model providers process their documents before adopting an AI toolnot Smokeball

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Smokeball

  • Requires a Windows desktop component for automatic time capture, so it is not browser-only like its competitors
  • Quote-only pricing with no published rates
  • Aimed at small firms; larger practices with complex billing arrangements generally outgrow it

Spellbook

  • It publishes no accuracy figure for its own output and no independent evaluation exists, so a firm must run its own assessment on real agreements.
  • The ten times more accurate claim originated in a funding announcement as a statement of intent and has no methodology, dataset or baseline behind it.
  • Contract text is processed by third-party model providers, so despite the zero data retention agreements this still needs checking against client confidentiality terms and outside counsel guidelines.
  • Pricing is not published, so seat cost cannot be compared against competitors without booking a demo.
  • It is a drafting assistant rather than a contract lifecycle system, so it does nothing for execution, obligation tracking or renewals.

Pricing, plan by plan

Smokeball

On request

No published plan breakdown. See the Smokeball review.

Spellbook

On request
  • Spellbook$undefined/year
    • Priced by the number of seats on the licence
    • Rates quoted after a demo, not published
    • Seven day free trial, free access for academic use

Which should you pick?

Choose Smokeball if

  • You need automatic time capture.
  • You work on Windows, Web, iOS, Android.
  • You also want matter management.

Choose Spellbook if

  • You need word add-in drafting.
  • You work on Windows, macOS, Web.
  • You also want contract review.

Questions people ask

Is Smokeball or Spellbook better?
Neither clearly leads. Smokeball starts at On request and Spellbook at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Smokeball or Spellbook?
Smokeball starts at On request and Spellbook at On request.
Does Smokeball or Spellbook run on more platforms?
Smokeball runs on Windows, Web, iOS, Android. Spellbook runs on Windows, macOS, Web.
What is Smokeball best used for?
Smokeball is most often used for firms billing hourly that lose revenue to unrecorded time, small practices replacing paper matter files and spreadsheets, firms needing court form automation for high-volume matter types. Of those, firms billing hourly that lose revenue to unrecorded time and small practices replacing paper matter files and spreadsheets are not what Spellbook is typically brought in for.
What can Smokeball do that Spellbook cannot?
Smokeball covers Automatic time capture, Matter management, Document automation, Billing and trust accounting. Spellbook covers Word add-in drafting, Contract review, Benchmarks against market standards, Question answering.

Answered from the vendors’ own pages

Smokeball: What does Smokeball cost?

Pricing is quoted per firm and not published.

Spellbook: Is Spellbook's accuracy independently verified?

No. It publishes no accuracy figure of its own, and no third-party evaluation has been published. It did not participate in the Vals Legal AI Report, the main independent lawyer-baselined benchmark. Evaluate it on your own agreements during the trial.

Smokeball: How does automatic time capture work?

A desktop application observes work on matters and turns activity into billable entries, rather than depending on someone remembering to start a timer.

Spellbook: Which models does it use and where does our text go?

Spellbook names OpenAI GPT-5 and Anthropic Claude models, and states it has zero data retention agreements with both providers. Confirm the current terms and subprocessor list against your client confidentiality obligations before use.

Smokeball: Does it run on Mac?

The automatic time capture component is Windows-based, which is the main platform constraint.

Spellbook: What does it cost?

Pricing is per seat but is not published. The vendor quotes it after a demo, so the seat rate cannot be compared with competitors in advance.

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