Have you seen the Swim England app where you are able to track your child’s progress 
The free #MyLearntoSwim app allows children and parents to get more out of children learning to swim. As well as parents being able to track what their children are learning through each stage, little ones can gain extra rewards and unlock new features as they develop their swimming skills and water confidence.They can then take photos with Harry the hermit crab and play with Sophia the seahorse in the Photo booth having unlocked these characters too 
To download just click on the link below 
https://www.swimming.org/learntoswim/my-learn-to-swim-app/