Legal
Terms of Service
Last updated: May 15, 2026
Scope
These Terms of Service ("Terms") apply to the desktop and mobile application "Doculator" and the related website doculator.app ("the Service") provided by tesaguri.tech. By using the Service, you agree to these Terms.
Services
The Service provides a calculator application designed for engineers and researchers, including the following features: - Expression input with units, basic arithmetic, and scientific/engineering functions - Calculation history and variables - Always-on-top window mode - Spreadsheet functionality - Mobile applications The content and availability of the Service may change, be added to, or be discontinued without prior notice.
License
Doculator is freeware, provided at no cost. You may use it for both personal and commercial purposes. However, redistributing, selling, or modifying the Service's software or content without permission is prohibited. Please obtain prior consent from tesaguri.tech before redistribution or similar activities.
Prohibited Activities
The following activities are prohibited when using the Service: - Violating laws or public order - Placing excessive load on our servers or network - Unauthorized access or attempts thereof - Unauthorized reproduction, redistribution, modification, or republication of our content - Reverse engineering, decompilation, or similar activities - Actions that cause harm to other users or third parties - Any other activities deemed inappropriate by the Service
Disclaimer
We do not guarantee the accuracy or completeness of calculation results provided by the Service. If you use calculation results for work, research, or other important decisions, you must verify them under your own responsibility. We are not liable for: - Service interruptions, suspensions, or terminations - Accuracy, currency, or usefulness of information - Damages arising from your use of the Service - Disputes between users or with third parties - Issues caused by compatibility with operating systems, hardware, or other software
Intellectual Property
Copyright and other intellectual property rights for the software and content (text, images, design, etc.) included in the Service belong to tesaguri.tech or their rightful owners. Use beyond personal purposes requires prior permission.
Changes to Terms
tesaguri.tech may modify these Terms as necessary. Revised Terms take effect upon publication on the Service's website. We will announce significant changes on the website.
Contact Us
For questions about these Terms, please contact us at the following email address.