Last updated: 25 August 2026
Sustainable Day is built around useful information, meaningful connections, and practical services. We believe that privacy should be part of that experience from the beginning ā not something hidden in the small print.
This Privacy Policy explains how fortheworld OĆ, the company behind Sustainable Day, handles personal information when you use Sustainable Day websites, platforms, tools, and services.
This includes services such as:
the main Sustainable Day website;
fly.sustainable.day, our flight and travel discovery service;
meet.sustainable.day, our meeting, booking, and participation platform;
the Help Center and other Sustainable Day websites;
forms, communications, community features, and other services we may introduce over time.
We may update this policy as Sustainable Day evolves. When we introduce new services, we aim to integrate them into this overall privacy framework rather than treating each new feature as a separate system.
Who is responsible for your data?
For personal data processed by Sustainable Day for its own purposes, the data controller is:
fortheworld OĆ
Estonia
Sustainable Day is a project and service ecosystem operated by fortheworld OĆ.
Where another company processes information on our behalf, that company may act as a data processor or other third-party service provider, depending on the nature of the service and the applicable legal relationship. Under the GDPR, controllers determine the purposes and means of processing, while processors process personal data on behalf of controllers. European Commission
What information may we collect?
The information we process depends on which Sustainable Day service you use.
This may include:
Information you provide directly
Name
Email address
Contact details
Account information
Booking or meeting information
Messages, feedback, reviews, or other content you choose to submit
Preferences and information you provide when using our services
Account and authentication information
If you create or access an account on Meet Sustainable Day, you may be able to authenticate using supported third-party providers such as Google, Apple, LinkedIn, or Facebook.
When you use one of these sign-in options, the relevant provider may share with us the information needed to establish or manage your account, in accordance with the provider's authentication process and the permissions or choices involved.
We do not receive your password for these third-party accounts.
Technical information
When you use our websites or services, certain technical information may be processed, such as:
IP address
Browser and device information
Operating system
Language and regional settings
Pages or services accessed
Technical logs and security information
Some of this information may be collected automatically where necessary to operate, secure, and improve our services.
How do we use your information?
Depending on the service you use, we may process personal information to:
provide and operate Sustainable Day services;
create and manage user accounts;
authenticate users;
facilitate meetings, bookings, and participation;
provide travel and flight search functionality;
communicate with you about services you use;
respond to questions and support requests;
maintain security and prevent misuse;
improve the reliability and functionality of our services;
understand how our services are used;
comply with legal and regulatory obligations;
protect our rights and our users' rights.
We aim to follow the GDPR principles of lawfulness, fairness and transparency, purpose limitation, data minimisation, accuracy, storage limitation, security, and accountability. European Commission
Our legal bases
Where the GDPR applies, we process personal data using an appropriate legal basis depending on the circumstances.
These may include:
Performance of a contract ā when processing is necessary to provide a service you have requested.
Legitimate interests ā where processing is reasonably necessary for purposes such as security, service operation, improvement, or protecting our legitimate business interests, while respecting your rights.
Consent ā where we ask for your permission for a particular use of information.
Legal obligations ā where processing is necessary to comply with applicable law.
Where processing is based on consent, you can withdraw that consent at any time. Withdrawal does not affect the lawfulness of processing carried out before consent was withdrawn. European Commission
Meet Sustainable Day
Meet Sustainable Day is a Sustainable Day platform that allows people to discover, book, participate in, and manage meetings and other forms of connection.
Depending on how you use the platform, we may process information associated with your account, such as your identity, contact details, authentication information, meeting or booking details, and information you choose to provide as part of your participation.
Third-party authentication providers may be used to help you create or access your account. These providers authenticate you independently and may share certain account information with us as part of the sign-in process.
We use this information to provide the Meet Sustainable Day experience, maintain your account, facilitate participation, and operate the platform.
The specific information processed can depend on the features you use and the authentication or integration services you choose.
Fly Sustainable Day and travel services
Fly Sustainable Day helps you discover and compare travel options.
When you search for flights or other travel options, information necessary to perform the search may be transmitted to or obtained from relevant travel partners or service providers.
Sustainable Day does not operate the flights, issue airline tickets, or directly provide transportation.
When you continue to a travel partner to complete a booking, that partner may process your information under its own privacy policy and terms.
More information about these relationships is available in Travel Partners & Third Parties.
Who may receive your information?
We may share personal information where necessary with:
technology and infrastructure providers;
authentication providers;
meeting and communication services;
travel and booking partners;
service providers supporting customer communications;
analytics or security providers, where applicable;
professional advisers;
authorities or other parties where required by law.
We aim to share only the information necessary for the relevant purpose.
Where third parties process personal data on our behalf, we take appropriate steps to ensure that the processing is governed by suitable contractual and organizational safeguards. European Commission
International data transfers
Some of our service providers may process information in countries outside the European Economic Area.
Where personal data is transferred outside the EEA, we aim to use appropriate legal mechanisms and safeguards as required by applicable data protection law.
Information about relevant third-party providers and their processing practices may also be available through their own privacy documentation.
How long do we keep your information?
We retain personal information only for as long as reasonably necessary for the purposes for which it was collected, including providing services, maintaining records, resolving disputes, enforcing agreements, and meeting legal obligations.
The appropriate retention period depends on the type of information and why we need it.
When information is no longer required, we aim to delete it or anonymize it where appropriate.
How we protect your information
We use appropriate technical and organizational measures designed to protect personal information against unauthorized access, alteration, disclosure, loss, or destruction.
No internet service can guarantee absolute security, but we continuously work to reduce risks and protect the information entrusted to us.
Your privacy rights
Depending on the circumstances and applicable law, you may have the right to:
access your personal data;
correct inaccurate information;
request deletion;
request restriction of processing;
object to certain processing;
receive your data in a portable format;
withdraw consent where processing is based on consent;
receive information about how your data is processed;
lodge a complaint with a relevant data-protection authority.
The GDPR provides these rights subject to certain conditions and exceptions. European Commission
You can learn more about exercising these rights in Your Data & Privacy.
Changes to this Privacy Policy
Sustainable Day will continue to evolve.
We may update this Privacy Policy when our services, technology, legal obligations, or data-processing practices change.
When we make significant changes, we will take appropriate steps to bring those changes to your attention.
The latest version published on this page applies to your use of the relevant Sustainable Day services.
Contact us
If you have a question about privacy, want to exercise your data-protection rights, or believe your information has been handled incorrectly, please contact us through the privacy or contact channels provided by Sustainable Day.