What AI technology does ReviewPro use?
ReviewPro uses a combination of artificial intelligence techniques to deliver precise, reliable results:
Sifters. Sifters are contract-specific algorithms that use Machine Learning (ML) and Natural Language Processing (NLP) to identify and flag critical issues or missing terms in your contracts. Each Sifter is trained on thousands of real-world contracts, released to clients when it achieves 95+% accuracy, and continuously improved with expert feedback.
Generative AI. Generative AI automatically applies precise redlines that align exactly with your company's established positions. We tightly control and constrain the AI, so that it operates like an attorney under strict supervision. We measure AI quality using thoroughness, accuracy, and edit fluency—consistently achieving a 95%+ accuracy rating. Together, these advanced AI technologies ensure ReviewPro delivers consistent, attorney-quality results, faster and more reliably than any other solution available.
Who writes the out-of-the-box guidance for LegalSifter ReviewPro?
Our out-of-the-box guidance is written by experienced attorneys who specialize in specific contract types. It’s all overseen by Ken Adams, LegalSifter’s Chief Content Officer and author of A Manual of Style for Contract Drafting. Examples of expert contributors include:
Healthcare guidance: Written by Dan Mulholland of Horty Springer, a top health law firm.
Software guidance: Created with help from David Tollen, author of The Tech Contracts Handbook.
Transportation guidance: Developed by Transaction Expeditors, part of Frost Brown Todd, a leader in truckload transportation law.
Can I use my own playbooks?
Yes. You can customize LegalSifter’s standard playbooks or build new ones based on your existing content. ReviewPro makes it easy to edit and manage playbooks, and our team also offers a managed service for organizations that want expert assistance.
Do I have to use Microsoft Word to use ReviewPro?
Yes, the ReviewPro functionality is built specifically for the Microsoft Word application.
Is there a way to use a PDF file in ReviewPro?
Yes. Microsoft Word can open and convert PDF files. Simply open the PDF in Word and save it as a .docx file. Once converted, the document can be sifted in
Do I have to review redlines one click at a time?
No. ReviewPro automatically redlines your document based on your playbook. You can then review all redlines at once and filter them by high, medium, or low importance to simplify final review and approval.
Is ReviewPro an example of agentic AI?
Yes, ReviewPro can be considered agentic AI in that it independently produces a redline based on your company’s playbook, without requiring additional input or back-and-forth during the review process.
That said, it’s a highly structured and supervised agent. It doesn’t roam freely, improvise, or apply general AI reasoning. Instead, it behaves exactly how you’d expect a well-trained second-year associate to act: follow the playbook, don’t deviate, and stay within the lines.
This deliberate design ensures consistency, transparency, and alignment with your standards—delivering the speed of agentic AI without compromising legal judgment or oversight.
Can ReviewPro review and redline contracts written in languages other than English?
Yes. ReviewPro redlining playbooks written in English can effectively review, understand, and edit contracts in other languages. Our AI engine understands multiple languages and will make edits in the language the contract is written in.
Do I have to use auto-redlining or can I simply use the issue flagging capabilities?
If you do not want to have your contracts redlined we can turn that feature off and you can still use our standard issue flagging and guidance playbooks to review contracts.
What type of security does ReviewPro have?
ReviewPro uses industry-standard security practices to ensure your data is protected. For detailed information, please contact our team.
Are you SOC 2 compliant?
Yes. LegalSifter meets SOC 2 compliance standards.
What is a Sifter?
A Sifter is a piece of software trained to read text and look for a specific concept. It reads novel language, learns from experience, and improves over time. Our Sifters use machine learning (ML) and natural language processing (NLP), types of AI, along with a number of other advanced search techniques.
What are the minimum system requirements to use ReviewPro?
To use the ReviewPro Word Add-in, you’ll need an up-to-date version of Microsoft 365 (formerly Office 365) or Microsoft Word.
What types of contracts does LegalSifter support?
The platform’s library includes 2,200 + pre-built Sifters that recognize clauses across NDAs, MSAs, SaaS and vendor agreements, employment, real-estate, government FAR/DFARS, HIPAA, and more. We are continually adding playbooks for commonly reviewed contracts.
Does AI understand different contract types (e.g., NDAs, MSAs)?
Yes, advanced AI tools are trained on diverse contract types and can adjust their analysis based on the context and structure of each document type.
How accurate is AI in reviewing legal documents?
When properly trained, AI can achieve high accuracy‚ often matching or exceeding human performance for specific clause detection tasks. Human oversight is still essential for nuanced legal judgment.
Can AI detect missing clauses in a contract?
Yes, AI can flag missing or non-standard clauses by comparing the document against a predefined playbook or industry best practices. It helps ensure critical terms are included before signing.
What types of contracts can be reviewed using AI?
AI can review a wide range of contracts, including NDAs, MSAs, vendor agreements, employment contracts, and more. Tools like LegalSifter ReviewPro offer playbooks for over 30 diverse contract types to provide reliable insights across industries.
Is LegalSifter suitable for small legal teams or solo practitioners?
Absolutely. Cloud deployment, a low-seat “Basic” tier, and usage-based “Sift Credits” mean even a solo GC can start reviewing contracts in minutes without IT overhead, then scale up to Team and Enterprise plans as volume grows.
Does LegalSifter offer a free trial?
Yes—a 14-day free trial is available for LegalSifter ReviewPro. Get Started here.
What are the minimum system requirements to use ReviewPro?
To use the ReviewPro Word Add-in, you’ll need an up-to-date version of Microsoft 365 (formerly Office 365) or Microsoft Word.
Where is my data stored?
Your ReviewPro data is hosted on Amazon Web Services (AWS).
All ReviewPro databases and file storage use AWS infrastructure, with data stored in AWS RDS (relational database) and S3 (object storage) services.
AWS maintains extensive compliance certifications (SOC 2, ISO 27001, GDPR, and others) that extend to data stored within their infrastructure. If your compliance team needs AWS's full certification documentation, it is available at aws.amazon.com/compliance.
Let us know if your team needs anything more specific.
How Can I Configure My Email Servers for LegalSifter ReviewPro?
All of the email messages for LegalSifterControl and ReviewPro will be coming from MailGun.
Please use the following information to whitelist system-generated emails from LegalSifter Control and ReviewPro applications:
URL: *.mail.legalsiftercontrol.com
IP Address: 143.55.232.41, 204.220.184.42