With cell phones literally putting communication at our fingertips, it seems like walkie-talkies are only for those in remote areas. But what if you want the ability to use “push-to-talk” (PTT) to get a hold of someone quickly? Well, you can with the right walkie-talkie app. Here are the 5 best walkie-talkie apps to help you connect with friends and strangers around the world.

Apple has Walkie-Talkie, an app exclusively for Apple Watch users. To use the app, you must be able to make and receive FaceTime audio calls.

Basically, the app lets you use your watch to send a voice message to your contact, who will then hear your message directly on their watch. This app is for contacts only, not for public or group conversations.

Zello has over 4-star ratings on both the Android and iOS app stores with tens of thousands of users. The app offers users the best of both worlds, allowing you to communicate privately with people you know and also join channels that might interest you. Zello offers real-time streaming with high-quality audio, including PTT, and works over WiFi or mobile data.