"Works well the first 30 days then they tell you they will slow you down then after 60 days they completely block your "yearly" subscription."
“I have had nothing but issues with ChatSim since the day I activated it. I am confident that only Facebook Messenger is using data services, yet I constantly get texts regarding abnormal use. I was also notified that I has reached both the monthly AND yearly limit within days of using ChatSim, but the service is advertised as unlimited. Most recently I was told that my ChatSim had been blocked and I would have to buy a new plan. All in all, ChatSim has proved too good to be true and was a waste of money to purchase and unlock my phone- I would have been better off buying local SIM cards throughout my trip.”
I would personally stay away from this product.