The JP Summon Simulator is different from the NA Summon Simulator in that it includes a 0.8% rate for Rate-up SSR Servants and 11 pulls (1 free pull every 30 SQ or every 10 tickets), which reflects the current state of JP. It is not known when these Summon changes will be implemented in the NA Server.
Link to NA Summon Sim
List of all Summoning Campaigns
JP Summon Simulator