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What is Lekh Diagram?

Create beautiful diagrams and user interface wireframes with Lekh Diagram, a groundbreaking sketch recognition application that is accessible on both iOS and Android devices. This multifunctional tool enriches your creative journey by enabling intuitive drawing, which effortlessly converts your rough sketches into refined designs. Additionally, its user-friendly interface ensures that you can focus on your ideas without being hindered by complicated features.

What is Astah Professional?

Astah Professional is a desktop modeling application from Change Vision, Inc. for organizations that design software and systems. It brings UML 2.x, ER diagrams, data flow diagrams, flowcharts, requirement diagrams, CRUD, and mind maps together in one product, which reduces the number of tools a team needs to license and learn. Because Astah stores designs as models rather than drawings, an update made in one place carries through to every related diagram. This keeps design documentation consistent as projects change. Version 12.0, released in July 2026, brings AI into the modeling workflow. AI Chat Copilot and AI-assisted code reverse engineering run on your organization's own API key for OpenAI, Azure OpenAI, Claude, or Gemini, or for an OpenAI-compatible service, so AI usage stays under the contracts you already manage. Local MCP server integration lets AI agents connect to your Astah models. Licenses are available monthly, annually, or as a perpetual license, starting at $11.99 per month. Astah Professional runs on Windows, macOS, and Linux without a separate Java installation, and a 20-day free trial is available.

Media

Media

Integrations Supported

Integrations Supported

Azure OpenAI Service
C#
C++
Claude
Claude Duet
Claude for Legal
Gemini
HTML
Java
Mermaid
Microsoft 365
Microsoft Excel
OpenAI
PHP
Redmine

API Availability

API Availability

Pricing Information

Pricing not provided

Pricing Information

$11.99 per month
Available from $11.99 per month.
Monthly, annual, or perpetual licenses. 20-day free trial.
Free Trial Offered?

Supported Platforms

Android
iPhone
iPad

Supported Platforms

Windows
Mac
On-Prem
Linux

Customer Service / Support

Not specified

Customer Service / Support

Web-Based Support

Training Options

Not specified

Training Options

Documentation Hub

Company Facts

Organization Name

Lekh App

Company Website

lekh.app/diagram.html

Company Facts

Organization Name

Change Vision, Inc.

Date Founded

2006

Company Location

Tokyo, Japan

Company Website

astah.net/products/astah-professional/

Categories and Features

Diagram

Not specified

Process Mapping

Not specified

Wireframe

Not specified

Categories and Features

Diagram

Data Import / Export
Drag & Drop
Flowchart
For Developers
Mind Map
Multi-User Collaboration
Templates

Flowchart

Diagramming
Drag & Drop
Templates
Text to Chart

Mind Mapping

Brainstorming
Flowchart
Project Planning
Templates

Process Mapping

Not specified

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