Hi Margaret! Great question. A lot of our titles formerly available on RehearScore PLUS have been converted to the RehearScore APP (https://www.mtishows.com/marketplace/resource/pre-performance/rehearscore), with more titles coming. The RehearScore APP brings the magic of RehearScore directly to your mobile device in an intuitive application to run rehearsals. Feel free to call at (212) 541-4684 if you have any questions. 

ProductionPro is a separate, awesome tool providing interactive scripts for the production team to collaborate during rehearsals.