Terms of Service

Last updated: November 30, 2025

Agreement to Terms

By downloading, installing, or using Diagram Maker ("the Application"), you agree to be bound by these Terms of Service. If you do not agree to these terms, do not use the Application.

License Agreement

Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, revocable license to use Diagram Maker for your personal or commercial use.

You may NOT:

  • Copy, modify, or create derivative works of the Application
  • Reverse engineer, decompile, or disassemble the Application
  • Rent, lease, lend, sell, or redistribute the Application
  • Remove any copyright or proprietary notices

Subscription Terms

Diagram Maker offers both FREE and PRO subscription plans:

FREE Plan

  • Limited to 3 diagrams at a time
  • Basic features with some limitations
  • PNG export includes watermark

PRO Plan

  • Monthly: $4.99/month
  • Yearly: $39.99/year (save 33%)
  • 7-day free trial for new subscribers
  • Subscriptions automatically renew unless canceled
  • Manage subscriptions through your Apple ID settings
  • No refunds for partial periods

AI Features

AI features are optional and require:

  • Your own API key from Anthropic or OpenAI
  • Agreement to the terms of service of your chosen AI provider
  • Understanding that AI responses may not always be accurate
  • Responsibility for API usage costs charged by the provider

Acceptable Use

You agree to use Diagram Maker only for lawful purposes. You may NOT use the Application to:

  • Create illegal, harmful, or offensive content
  • Violate any applicable laws or regulations
  • Infringe on intellectual property rights of others
  • Transmit malware or malicious code

Intellectual Property

The Application and its original content, features, and functionality are owned by Diagram Maker and are protected by international copyright, trademark, and other intellectual property laws.

You retain all rights to the diagrams and content you create using the Application.

Disclaimer of Warranties

THE APPLICATION IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO:

  • Implied warranties of merchantability
  • Fitness for a particular purpose
  • Non-infringement
  • Error-free or uninterrupted operation

Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, DIAGRAM MAKER SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS OR REVENUES, WHETHER INCURRED DIRECTLY OR INDIRECTLY, OR ANY LOSS OF DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES.

Changes to Terms

We reserve the right to modify these Terms at any time. We will notify users of any material changes through the Application or via email. Continued use of the Application after changes constitutes acceptance of the new Terms.

Termination

We may terminate or suspend your access to the Application immediately, without prior notice, for any reason, including breach of these Terms.

Governing Law

These Terms shall be governed by and construed in accordance with the laws of the jurisdiction in which Diagram Maker operates, without regard to its conflict of law provisions.

Contact Us

If you have any questions about these Terms, please contact us at support@diagrammaker.app