# What are differences between FREEMIUM and PREMIUM @unikname ID?
The differences between FREEMIUM and PREMIUM @unikname IDs are:
- the length
- the public registry of properties
- the retention period
- the welcome reward (credit of UNS tokens)
FREEMIUM @Unikname IDs are 15 characters long or more. To get a shorter one you need to pay for a PREMIUM one.
FREEMIUM @Unikname IDs do not have a public registry of properties.
FREEMIUM @Unikname IDs must be activated within 1 week of their acquisition. Once activated, the retention period is 3 months after its last proof of activity.
FREEMIUM @Unikname IDs do not receive any welcome reward at activation.
PREMIUM @Unikname IDs are from any length. They could be longer than 15 characters too.
PREMIUM @Unikname IDs can have a public registry with up to 100 properties.
PREMIUM @Unikname IDs They must be activated within 4 weeks of their acquisition. Once activated, the retention period is 18 months after its last proof of activity.
PREMIUM @Unikname IDs receive a welcome reward of 100 UNS tokens at activation time.
|Length of the @Unikname ID||15 characters long or more||any size|
|Public registry of properties||NO||YES, up to 100 properties|
|Retention period for activation||1 week||3 months|
|Retention period once activated||3 months after last Proof Of Activity||18 months after its last Proof Of Activity|
|Everlasting retention period||Option||Option|
|Welcome Reward||none||100 UNS|
About the retention period
The getter of a @unikname ID remains the owner of his identifier for no limit of time, provided that the identifier has been activated and that it is used regularly.
The retention period is the period which guarantees the getter of a @unikname ID that he remains the owner of his identifier if it has not been activated or if it is not used regularly.
Once the retention period has passed, the acquirer of a Unikname ID remains the owner as long as another person does not want to acquire it. If another person get it after the retention period, then the @unikname ID is fully reset and it looses all its previous access.
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