structo-privacy

Privacy Policy (Structo)

Last updated: August 27, 2026

Structo (“the App”) is a mobile application for creating and editing chemical structure drawings. This policy explains what information the App collects and how it is used.

Information We Collect

The App uses Google Firebase Analytics to collect anonymous usage data. Specifically, we collect the following:

1. Anonymous Feature Usage

The App sends anonymous usage events indicating when certain features are used (such as inserting templates, importing/exporting SMILES, exporting images, using reaction-drawing tools, the Validation dashboard, the Clean Structure feature, and saving documents). These events include only the type of feature used and brief contextual details, such as a template’s category or an exported image’s format.

2. First-Launch Survey Responses

On first launch, the App shows an optional survey (four multiple-choice questions about your intended use, your role, any tool you previously used, and your field of specialization).

• Each selected answer is sent as an anonymous event and as a user property to Firebase Analytics at the moment you select it. If you change your selection, the earlier selection may also remain recorded in the event history, but the user property that reflects your profile always holds only your most recent selection.
• The survey can be skipped at any time, and it will not be shown again once you have answered or skipped it.
• Any free-text you enter when choosing “Other” is never sent or collected.

3. Information Automatically Collected by the Firebase Analytics SDK

The Google Firebase Analytics SDK may automatically collect standard usage statistics, such as app opens and session starts/updates.

Information We Do Not Collect

The App never collects or transmits:

• The chemical structure data you create
• Your name, email address, or other personally identifiable information
• Any free-text you enter in the survey’s “Other” field

How We Use This Information

The information we collect is used solely to improve the App, understand usage patterns, and prioritize future development.

Third-Party Sharing

We do not sell or share the information we collect with any third party for advertising purposes. It is transmitted only to Google Firebase for data processing.

Contact Us

If you have any questions about this policy, please contact us at:

structo.dev@gmail.com

Changes to This Policy

This policy may be updated from time to time as the App evolves or as required by law. Any changes will take effect as soon as the updated policy is posted on this page.