Terms of use

Last updated [date] · Version [1.0] · Previous versions

The short version

  • The tool is free to use, with no account.
  • Results are estimates and come with no warranty. Your optician or lab confirms final thickness.
  • Some links go to partner shops. We may earn a commission, and it never changes your results.
  • The tool, its words and its drawings belong to us. Your numbers always stay yours.
This summary is part of the policy. The full text below is the legal version.

1. Using the tool

You may use the tool for personal, non-commercial purposes without registering. Please do not copy it, resell it or use it in ways that disrupt it for others.

2. No warranty on estimates

Estimates are for comparison. They come from a simplified model and are provided as they are, without warranty of any kind. Read the disclaimer for what they do and do not include. Read the disclaimer.
Some links lead to shops run by other people. We may earn a commission on a purchase, labelled where the link appears. We do not control those shops and are not responsible for them.

4. Intellectual property

The tool, the text and the drawings are protected by copyright. You keep everything you enter; it never reaches us.

5. Liability and governing law

[To be completed by counsel: governing law, liability and dispute terms.]

6. Changes to these terms

[To be completed by counsel: how changes are announced and when they apply.]

7. Contact

Muhammad Talha (individual). Questions: tbasit.explorer@gmail.com.