Do you have any recommendations regarding mobile phones? Did you keep your home-country plan or use a local provider?
We were able to use T-mobile ONE and keep our US numbers. Most business etc... here have WhatsApp. You can get a local phone here but apparently it has to get registered which is sometimes a ridiculous process. - Aug 2019
For reliable, inexpensive service, get a prepaid phone from Comcel, Tigo, or Movistar, and just add minutes as you need them. But you can also get full smartphone plans just like the US, and the price is similar. - Mar 2012