Does Synker require the purchase of the Unlock Key?

No. The free, ad supported, version of Synker does not require the purchase of the unlock key and is fully functional with the exception of the Sync Inspector . While in advertisement supported mode an occasional reminder, every 5 days, will occur asking the user to consider purchasing the unlock key. Yes it’s a nag screen but it can be easily dismissed and the application remains functional without the unlock key.