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SPECIFICTION
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BlackBoiler vs LeCHECK

BlackBoiler

blackboiler.com

LeCHECK

lisse-law.com

Side by side

FigureBlackBoilerLeCHECK
Price from$104.17/mo—
Free plan——
Free trialYesYes
Open source——
WebYesYes
Windows—Yes
macOS—Yes
APIYes—
Plans published31
Spec score · AI Contract Review Software8.4 (#4)8.3 (#6)
HeadquartersBrambleton, Virginia, United StatesTokyo, Japan
Review workflowReviewers decide whether to accept, change, reject, escalate, or negotiate the proposed edits.The review feature can compare a contract with registered similar contracts and company templates.
What it doesBlackBoiler applies an organization's playbook, prior redlines, approved language, and examples to produce first-pass tracked changes and comments in Microsoft Word.The review feature analyzes contracts and presents risk findings, proposed revisions, and internal or external comment drafts.

Plans

BlackBoiler

  • Starter$1,250 a year
  • Pro$3,000 a year
  • EnterprisePriced on request

BlackBoiler pricing →

LeCHECK

  • Lisse Legal AI Cowork — custom planPriced on request

LeCHECK pricing →

In their own words

BlackBoiler

BlackBoiler reviews contracts in Microsoft Word by applying an organization’s playbook, previous redlines, approved wording, and examples. It creates first-pass tracked changes and comments; reviewers then accept, modify, reject, escalate, or negotiate each suggestion. Veris provides conversational access to playbooks and contract language within Word. The service covers recurring agreements such as NDAs, service agreements, and subcontracts, plus construction prime contracts, subcontracts, and professional services agreements using AIA, ConsensusDocs, and EJCDC forms. BlackBoiler is aimed at in-house legal teams, law firms, contract managers, and construction legal, commercial, procurement, and project teams. It concentrates on pre-execution review and redlining, while an existing CLM can handle intake, approvals, signatures, and the broader lifecycle. Platforms are web and API. Starter costs $1,250/user/year, Pro costs $3,000/user/year, Enterprise pricing is custom, and a seven-day trial requires a credit card.

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LeCHECK

LeCHECK is the contract review feature of Lisse Legal AI Cowork, which also covers legal drafting, research, translation, matter management, and contract management. Users can submit a contract for risk findings, suggested revisions, and comment drafts. Review can draw on an organization’s criteria, templates, and past handling history, and compare a contract with registered similar contracts or company templates to show differences. LeCHECK works as a Microsoft Word add-in; the maker says no special system migration is needed. Its research feature draws on sources such as e-Gov and government agencies, shows references with answers, and connects results to review and drafting. The maker says more than 30 lawyers supervise the legal-focused AI, but a human staff member makes the final legal decision. The service is accessed as SaaS from a PC browser, with Windows and macOS support and current Chrome or Edge recommended. Pricing depends on account count and organization structure and is available by request. A free trial requires no credit card and does not automatically charge when it ends.

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