LeCHECK

LeCHECK is the contract-review component of Lisse Legal AI Cowork. It is best suited to legal departments and employees who manage company legal work alongside other duties, particularly when reviews must follow internal precedents. Its organization-specific context and Word integration are compelling, but custom pricing and mandatory human sign-off make it a managed professional tool rather than an autonomous shortcut.

Overview

LeCHECK analyzes uploaded contracts for risky clauses, then presents proposed revisions and draft comments for internal or external use. It sits inside a wider legal workspace covering drafting, research, translation, matter management, and contract management. That breadth favors organizations wanting connected workflows instead of a standalone checker.

The service remains available as a contract-review feature of Lisse Legal AI Cowork, operated by Lisse Co., Ltd. in Tokyo. More than 30 lawyers supervise the legal-focused AI. A human staff member still makes the final decision on review results, so the product accelerates preparation without transferring legal accountability to software.

Key features

Review against your own standards

LeCHECK can use company review criteria, templates, and past handling history when forming suggested revisions and comments. It can also compare a document with registered similar contracts and company templates, showing differences. This is more useful for teams with established playbooks than for buyers seeking only generic clause detection: the value increases as internal material becomes more representative and current.

Redlines and document support

Clause comparison and redline suggestions are supported for PDF and Word files. Contract review works as a Microsoft Word add-in, and the maker says no special system migration is needed. The review page describes a web version as planned for sequential release, while the security white paper describes the service as a SaaS used from a PC browser.

Connected research

The research feature draws on sources including e-Gov and government agencies and displays source references with answers. Results connect directly to review and drafting, so a user can move from a research finding to related legal work without changing tools. This integrated approach is valuable for departments handling several stages of a matter; teams that only need occasional contract screening may not use the broader scope.

Security and oversight

Lisse lists ISO 27001 and ISO 27017 certifications, SSL/TLS 1.2 encryption, IP address restrictions, WAF protection, and annual third-party vulnerability assessments. The maker clarifies that the certifications apply to organizational management systems rather than confirming product conformity. That distinction matters when security reviewers assess procurement requirements.

Pricing

LeCHECK has no free plan. The Lisse Legal AI Cowork custom plan uses custom pricing: rates depend on account count and organizational structure, and prospective customers must request pricing or an estimate. This can accommodate different team sizes, but it prevents a buyer from calculating costs without a sales discussion.

A free trial is available without a credit card, and the maker says the account is not automatically charged when the trial ends. The trial process includes a discussion of the customer’s situation, access to the service, and usage guidance. That guided start is useful for evaluating organization-specific review, although it is less convenient than an instant self-serve trial.

Platforms

LeCHECK supports Windows, macOS, and the web. Review is available through the Microsoft Word add-in, and current Chrome or Edge is recommended for browser access. Supported contract formats are PDF and Word, and the service supports two languages.

Who it's for

Legal departments are the clearest fit, especially those that want review suggestions grounded in company templates, criteria, and prior handling. It also suits employees who carry legal responsibilities without being dedicated legal specialists, provided a qualified person remains available for final decisions. Organizations seeking published prices, a permanent free tier, or fully automated legal approval should look elsewhere.

Pros and cons

Pros

• Organization-specific review: Internal criteria, templates, and past handling history can make proposed edits and comments more relevant than generic output.
• Precedent comparison: Similar registered contracts and company templates can be compared with the current document to expose differences.
• Word workflow: The add-in keeps review in Microsoft Word and is designed without special system migration.
• Broader legal workspace: Research, drafting, translation, matter management, and contract management connect with review.
• Controlled trial: Trial access requires no credit card and does not automatically become a charge.

Cons

• Custom pricing: Account count and organizational structure determine the quote, so costs are not transparent before contact.
• No free plan: There is no ongoing no-cost option for small teams or occasional users.
• Human sign-off remains necessary: The software supports legal work but does not replace the person responsible for the final decision.
• Web release timing: The review page describes the web version as planned for sequential release, while the add-in is the stated Word workflow.

Alternatives

Choose Genie AI instead if you want a freemium document toolkit with a free tier for one user, free AI tokens, and more than 500 templates, plus a paid annual Pro plan.

Legartis is a better fit when a free seat, two NDA reviews per month, and German, English, and French support are priorities.

Pick Zuva for an API-oriented free tier with daily limits and no credit card, including 25 files, classifications, language requests, and extractions per day.

Definely suits buyers who want products that can be trialled or purchased through an account, with enterprise plans and customized pilots.

Kira is a paid alternative offered on self-hosted and web platforms.

Maigon is a paid option available as an extension and through the web.

Robin AI is worth considering if a paid service with a free plan and free trial is preferable.

DocJuris is a paid platform with a free plan, API and web access, and an annual platform fee sized to contract volume and enabled applications.

Browse the AI Contract Review Software list for additional options.

Verdict

LeCHECK is a strong choice for legal teams that want contract review tied to their own templates, precedents, and connected legal research, with Word access and a guided trial. Choose it when tailored review and a broader legal workspace matter more than instant price visibility. Look elsewhere if you need a free tier, simple published rates, or software that can make the final legal decision without human review.