Zella records your screen or camera and edits the video for you, on your own Mac or iPhone. Nothing uploads, no account, no subscription. Free at 1080p with no watermark. One tap runs Auto-Polish: captions, silence cuts, filler words removed, zoom-ins and a cleaned-up voice. Make it Viral adds pacing, transitions, sound effects and a music bed. Pro is one payment of $89 that unlocks Mac and iPhone together, for life, instead of a monthly bill.