Effective Date: July 1, 2025
Welcome to Periodica, a mobile application developed and maintained by Hayden D’Errico (“Periodica,” “we,” “us,” or “our”). These Terms of Service (the “Terms”) govern your use of our mobile application and any related features, content, or services provided through it (collectively, the “Service”).
The Service is intended for users who are at least 13 years of age or older. By using the Service, you represent and warrant that:
You are at least 13 years old;
You have the legal capacity to enter into these Terms;
If you are under the age of majority in your jurisdiction, you have your parent or guardian’s permission to use the Service.
Periodica is an educational application designed to help users explore and learn chemistry concepts through interactive tools and visual aids.
The app is designed for ease of use and does not require account registration. User preferences and activity data are stored locally on the device.
By using Periodica, you agree to comply with these Terms. We reserve the right to update or modify the Terms at any time.
If we make material changes, we may provide notice within the app or through your app store, but we do not guarantee notification.
It is your responsibility to review these Terms periodically for any updates. Continued use of the Service after changes go into effect means you accept the revised Terms.
We grant you a personal, non-exclusive, non-transferable, revocable license to use Periodica on a device you own or control, for non-commercial educational purposes only.
You may not engage in the following activities: (1) reverse-engineer, decompile, or disassemble the app; (2) copy, distribute, or create derivative works from the app or its content; (3) circumvent access restrictions or attempt to access the app’s internal logic; (4) use automated systems (e.g., bots, crawlers) to interact with the app; (5) use the Service for unlawful, abusive, or disruptive purposes; etc.
All original content, code, and visual design elements of Periodica are the property of Hayden D’Errico, unless otherwise stated.
Some assets, such as icons or illustrations, may be licensed from third-party providers. Attribution for these assets is included within the app where required.
Data displayed is sourced from IUPAC and PubChem, with proper attribution provided in the app.
You may not use, reproduce, or redistribute proprietary content from the app without written permission, except as allowed under applicable law.
Periodica uses third-party libraries and frameworks to deliver certain features within the app.
These third-party tools are used in accordance with their respective licenses.
Attribution for all third-party software is included in the app's acknowledgments section.
Periodica is designed to respect user privacy and minimize data collection.
User activity, preferences, and history are stored locally on your device and are not transmitted to external servers.
If you contact us for support, we may receive basic information necessary to help address your inquiry.
Refer to the Privacy Policy for more details.
The Service is provided “as is” and “as available”, without any warranties, express or implied.
We do not guarantee that the app will be uninterrupted or error-free.
We do not guarantee that all data is accurate or complete.
We do not guarantee that it meets your academic, legal, or scientific needs.
You are solely responsible for how you use the app. We are not liable for any academic outcomes, data loss, or device issues resulting from its use.
To the maximum extent permitted by law:
We shall not be liable for any indirect, incidental, special, or consequential damages.
Our total liability shall not exceed the total amount paid (if any) by you for the Service in the 12 months prior to the claim.
Some jurisdictions do not allow certain limitations of liability. In such cases, this clause will apply to the greatest extent permitted.
We reserve the right to suspend or terminate access to the Service at any time, with or without notice, for reasons including violation of these Terms, misuse of the Service, or discontinuation of the Service.
Upon termination, your locally stored data will remain on your device unless deleted by you.
You may delete the app at any time to discontinue use.
Periodica may be available in languages other than English. These translations are provided for convenience only and may contain errors.
Translations are produced with human oversight; however, we do not guarantee their accuracy or completeness.
The English (U.S.) version of these Terms is the official and legally binding version of the app.
You may not use or export the app in violation of applicable export control laws or regulations, including U.S. laws that restrict use in embargoed countries or by restricted parties.
By submitting suggestions or feedback, you grant us a perpetual, royalty-free, non-exclusive, worldwide license to use, reproduce, or incorporate such feedback without compensation or attribution.
These Terms are governed by the laws of the Province of Quebec and the federal laws of Canada, without regard to conflict of law principles.
Any disputes shall be resolved in the courts of Montreal, Quebec, unless otherwise required by applicable law.
For any questions about these Terms, contact support@periodica.io.