Yes, to ensure the security of the exchanges, your recipient must have a Lockystar account. When you share a file, it is uniquely protected, so that only the recipient can open it via Lockystar.
To be more precise in the technical explanation, Lockystar is based on an encryption key system, and when you share an encrypted file with someone, you encrypt this file with your recipient's public encryption key. Thus, your recipient will be able to open it using their private encryption key generated when creating their Lockystar account.

For the moment, the application is only available on Windows devices. Soon, the application will be available for Linux, Android, Apple devices.

Yes, from the moment your Lockystar access is configured on the device.

Lockystar will never save your data by default. This means that, yes, your data can be lost if you do not take the necessary precautions. In order to protect our users, we have designed modules to allow you to recover your data in the event of deletion of the application, such as:

• the possibility of associating another device with your Lockystar account
• the possibility of saving your accesses locally or on our servers.

Yes, the data stored on the local storage space of the device will be lost. However, and if you have a backup of your accesses, locally or on our servers, the data stored on online storage spaces will not be lost. Simply reinstall the Lockystar app on any device and recover your Lockystar account.

• It is highly recommended to save your Lockystar account at the end of the registration step to allow you to reset your password if you forget it.
• Otherwise, you can also save your profile sheet (My account > Save my profile sheet) which will allow you to recover your account if you have not forgotten your password.

There are two possible scenarios in this situation:

• If you have not backed up your Lockystar account at the end of your registration: we are unfortunately unable to reset your password.
• This is why it is strongly recommended to back up your account: In this case, a request for access recovery, via the application, can allow you to reset your password

Respect for privacy is an essential value for us. As such, you can use Lockystar completely anonymously, without ever registering: when we are about to store information, we explicitly inform you. For more details, we invite you to consult our confidentiality rules.

The Lockystar application installed on your terminal accesses your files at your request for the sole purpose of allowing you to read or modify their content. Neither the content nor the actions you take on these files are communicated to us or any other organization.

a tutorial is available here