This software is free for non-commercial personal use, so businesses and users using it for commercial purposes must purchase a license.

If you use it in a company, organization, public institution, educational institution, or PC cafe, please purchase a license before use.

There is no difference in functionality between the free and paid versions. All ads shown in the free version are removed in the paid version.

Of course, non-commercial individual users may also purchase it if they want to remove the ads.

After purchase, the serial number will be sent to you by email, and you can use the software after registering it as shown below.

[How to Apply the Serial Number]

As shown above, click the menu and select Register, then enter your email address and serial number and click OK. Authentication will proceed as shown below.

After a short wait, the registration will be completed successfully.

[Registered oCam Licensed Version]

This is the registered screen with the ads removed. 

For reference, the ads that opened when exiting the free version are also removed in the paid version.