Kleos

At a glance

• Editor score
  5.1 / 10
• Pricing
  Paid
• Best for
  Document-centric firms needing mature controls
• Free plan
  No
• Founded
  1836 · Alphen aan den Rijn, Netherlands
• Facts checked
  20 Sep 2026

• Where it wins

  • Document versioning, audit trails, and document-level permissions
  • Microsoft Word, Outlook, Teams, Azure, and API integrations
  • Secure client file exchange, mobile apps, and Expert AI features

• Where it doesn't

  • No free plan is offered
  • Kleos Connect is included only in Advanced+
  • Single Sign-On is limited to Advanced+

Our verdict on Kleos

Kleos is a cloud-based legal practice management platform for law firms that need a central workspace for matters, documents, emails, appointments, tasks, time tracking, billing, and reporting. Its strongest fit is document-centric legal work: teams can manage version history, activity logs, audit trails, role-based permissions, document-level access, and full-text or contextual search. The platform runs on web, Windows, macOS, iOS, and Android, supporting legal professionals who work across office and mobile environments.

The plan structure adds capabilities in clear steps. Core includes matter, time, task, and billing management, plus Microsoft Word and Outlook add-ins. Advanced adds reports, PDF Manager, Microsoft Teams, and Expert AI for document analysis and summarization. Advanced+ adds Kleos Connect for secure client file exchange, advanced billing, and Single Sign-On. Kleos is paid software with no free plan, and published pricing varies by country; the listed starting price is 49. Firms should compare the available regional pricing against the features required for client collaboration, billing, and identity management.

Microsoft compatibility is a practical strength, with integrations for Word, Outlook, Teams, Azure, local e-justice systems, and an API. That ecosystem suits firms already organized around Microsoft tools. Kleos also offers mobile apps and combines document management with matter, time, and billing workflows rather than focusing only on file exchange. Firms seeking controlled document operations, auditability, and legal practice management should consider Kleos. Teams primarily looking for a standalone client intake, payments, or broad client portal product may prefer a more narrowly dedicated alternative.

Your product? Our editors can test Kleos in depth and publish a review, labelled as paid · from $149/mo →

Kleos pricing

All 3 Kleos plans and prices →

Kleos fact sheet

Kleos integrations

Kleos lists 6 integrations on its own site.

• Microsoft Word
• Microsoft Outlook
• Microsoft Teams
• Microsoft Azure
• local e-justice systems
• API

Alternatives to Kleos

• HighQA document-focused legal workspace with portals, controls, automation, and AI analysis.8.8
• FilevineA full legal operations suite for firms that need portal, matter, billing, and intake tools.8.7
• CCClio for ClientsA free client portal for Clio firms, with messaging, documents, billing, and matter updates.8.6

See all Kleos alternatives →

Featured on iTechGuides

Kleos is listed in our Legal Client Portal Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update