Complex sentence: The voucher system was replaced after users felt it was cumbersome to use; in October 2012, the MoviePass launched an invite-only beta nationally, and the service switched to using a mobile app and electronically-preloaded prepaid card.
Split into simpler sentences: The voucher system was replaced after users complained it was cumbersome to use. In October 2012, the MoviePass launched an invite-only national beta test, and the service switched to using a mobile app and electronically-preloaded prepaid card.