Apple is clamping down on App Store piracy by issuing takedown notices to Apptrackr, an online resource used to locate and download cracked iOS apps, reports Cult of Mac.

Apptrackr has responded to Apple’s notices by relocating its servers to other countries and implementing steps to ensure users aren’t liable to legal action.

An Apptrackr spokesman explained Apple’s actions in a note to users of Installous, an app on the Cydia directory.

The report said that Apptrackr has added checks using Captcha technology when users download cracked apps, avoiding the legal implications of hosting direct links to pirated software. The cost of moving servers to other countries has forced Apptrackr to introduce mobile ads as it can no longer rely solely on donations as it has done until now.

New hosts will soon be added by Apptrackr to help distribute cracked apps more effectively, Cult of Mac noted.