If you want unlimited data while traveling internationally, you don't have a lot of affordable options aside from the included global roaming plans of a major carrier like T-Mobile.
That's where KnowRoaming's Global SIM stickers come in. They attach to your existing SIM card like a sticker and give you international roaming when you go abroad. We reviewed KnowRoaming's SIM Sticker about a year back and awarded it our Editors' Choice for its affordable international data rates and ease of use.
The company is currently expanding its Unlimited Data plan in more than 80 countries, including Brazil, Argentina, and Costa Rica.
"Our mission since day one has been to provide travelers with an affordable and seamless way to stay connected all over the globe," said KnowRoaming CEO Gregory Gundelfinger.
If you're an international traveler who only needs texting, the ChatSIM Unlimited is an inexpensive option that supports apps like Facebook Messenger and WhatsApp. However, data fiends and regular international travelers will be hard pressed to beat KnowRoaming's Unlimited Data plan, which is available for $7.99 a day, and is a more affordable option for heavy data users than the plans of many carriers or Wi-Fi hotspots rentals.
"We've made it our goal to offer one flat rate for unlimited data access in the world's most visited destinations," Gundelfinger said. "Our Unlimited Data rate now covers over 80 countries—but we're not stopping there. Stay tuned for Unlimited Data in even more countries in the months to come."