# What are differences between FREEMIUM and PREMIUM UniknameID?
The differences between FREEMIUM and PREMIUM UniknameIDs are:
- the length
- the public registry of properties
- the retention period
- the welcome reward (credit of UNS tokens)
FREEMIUM UniknameIDs are 15 characters long or more. To get a shorter one you need to pay for a PREMIUM one.
FREEMIUM UniknameIDs do not have a public registry of properties.
FREEMIUM UniknameIDs must be activated within 1 week of their acquisition. Once activated, the retention period is 3 months after its last proof of activity.
FREEMIUM UniknameIDs do not receive any welcome reward at activation.
PREMIUM UniknameIDs are from any length. They could be longer than 15 characters too.
PREMIUM UniknameIDs can have a public registry with up to 100 properties.
PREMIUM UniknameIDs 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 UniknameIDs receive a welcome reward of 100 UNIK tokens at activation time.
|Length of the UniknameID||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||some UNIK*|
* Exact amount depends on marketing decisions
About the retention period
The getter of a UniknameID 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 UniknameID 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 UniknameID is fully reset and it looses all its previous access.
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