Insha Allah, you will get in the habit of reading Suratul Kahf every Friday. You can begin on Thursday evening as it is technically "the night of Friday" once Maghrib has arrived.
Abu Darda' ~ may Allah be pleased with him ~ related that the Holy Prophet ~ ~ said, " One who memorized the first ten verses of Suratul Kahf will be secure against the Dajjal (Anti-Christ) . Another version says: "One who commits to his memory the last 10 verses of this surah will remain immune from the Dajjal. [Muslim]
App by http://www.iqramedia.info