NumBots Maths activities for EYFS and KS1: https://numbots.com/

TimesTables RockStars for upper KS1 and KS2: https://ttrockstars.com/

Accelerated reader for some KS1 children and KS2 children: https://login.renaissance.com/12d2c6a1-f448-42bf-aea8-b6c60d462624?state=1473155d-3bac-4bd6-a81a-f4d3dd109682