For devices you own, you can remove Activation Locks via the "Find My" feature at iCloud.com/find .
If you have proof of purchase, you can start an Activation Lock support request directly with Apple.
While the productivity trial exists, the most searched version of iFast22 is the one promising to "unlock" Apple devices.
If you are trying to regain access to a locked device, it is always safer to use official methods: