A valid account number is required to use the service.
We use your account number to send you important information about Tube and your account, such as updated terms of service, password reset notices, and notifications of new releases.
We will not share your email address with unrelated parties, unless required to do so by law.

Tube allows you to add content to your account via its web interface, or by using the synchronization feature of approved clients. The content of the decks you add will not be visible to other users of the service.
In the interests of research and product development, we may programmatically extract anonymous information from your collection, such as options used, when reviews were made, and how long delays between reviews were. This information will not include the text or images/sounds on your cards, or any personally-identifying information. We may publish this anonymized information online, so that others may use it for research.
When the service experiences problems, or when you report a problem via our support site, we may need to access the data in your account in order to diagnose the issue. We will only use this data for diagnostic purposes, and will not share it with others. While investigating, we may see the contents of some of your cards, so please do not add data to Tube that you wouldn't want us to see when we investigate problems.
When you report a problem via our support site, we may sometimes need to paste small excerpts from your collection in order to communicate. If you are concerned about this, please mark your report as private when posting to our support site.

Data stored in your account may be archived and eventually deleted if they are not accessed in 3 months or longer.
When you update information in your account, backup copies of it may be taken for the purposes of data recovery. If you subsequently delete that data from your account, or delete your account entirely, backup copies may remain until they expire. We cannot manually remove your data from backups.
Although very unlikely, in the event of a catastrophic failure to one of our servers, we may need to restore from a backup, and this will undo any changes that were made since the backup was taken. If this happens, we will post an announcement on our support site.

You may access Tube directly through your browser, and through the synchronization functionality incorporated into the approved clients (Tube App in both Android and IOS ). Because other third-party clients often cause performance problems or errors, Tube may not be accessed from other clients without first obtaining permission from us.
Tube does not currently provide an API, and is not optimized to handle lots of little requests. You may not programmatically request pages on Tube to try and work around this.
As the service is provided to you at no charge, we reserve the right to suspend or remove your access to the service at our sole discretion.

If you fail to comply with these terms of service, we may suspend or remove your account at our sole discretion. If your actions were illegal, we may also report you to the authorities. We will provide your information to third parties when required to do so by law.
The use of our service must be strictly follow the server country and user’s location country law. Tube reserves the right to stop services of users who violate any applicable laws.

If we make any significant changes to these terms, you will be required to agree to the updated terms to continue to use the service. We may make minor changes like spelling corrections and improvements to the wording of clauses without notifying you, but we will update the modification time at the bottom of this page.

Use of the service is currently free, and the hosting costs are supported by sales of the membership. As the hosting costs continue to grow, we may need to introduce a free minute model in the future, where basic accounts are free for a certain time, and people can pay for accounts that have unlimited time. Please refer to Refund policy of Tube.