I have been using Onesim since May 2024
I have been using Onesim since last year. I have used it in Europe and Turkiye and I had a great experience. Not only that the customer service is really good. Whenever I signed up to contact the support chat, I contacted knowledgeable and helpful people. Today, my agent was proactive and suggested a better option - even though I was looking for an answer for something else - for my next travel that saved me a lot of money. I highly recommend OneSim for those who are traveling and do not want to purchase a local sim card every time they visit a new country.