Cj found Purple Mash:

• Slightly reduces teacher workload“Takes time to find resources and discover for some topics there aren't any”
• Does not significantly increase student collaboration
• Moderately improves teaching efficiency“Music can be individually performed and assessed”
• Does not improve parent engagement“Parents never look at work set or comments made as children can easily log in independently”
• Slightly builds student knowledge“Reinforces what learnt, doesn't teach except in ICT where the scheme is very good”