Traveling abroad is stressful enough. Don’t make it worse by limiting the functionality of your smartphone and laptop. The following apps and accessories are designed to make your everyday gadgets work as seamlessly abroad as they do at home — without crippling you with overage charges. They’ll also help you better explore a new city. After all, you’ll still need to check email (and look at Instagram) when you’re out of the country.

WhatsApp Messenger
For a quick and simple text and photo messaging solution, from across borders, this is the free app you want. It’s compatible with iOS and Android, and uses your phone’s internet connection (4G, 3G, 2G, EDGE or wi-fi) so there are no extra fees. Learn More: Here

Skype
Video call and instant message anybody in the world, for free. The VoIP service also allows users to call and text anybody’s mobile phone — although this comes with a fee. Learn More: Here

Krimston Two
This is the world’s first dual-SIM solution for iPhone users. No more swapping SIM cards in and out of one phone. It also doubles as a portable power bank and wi-fi hotspot. Learn More: Here