Yolla is described as 'is the app designed for international calls. The cheapest rates on market. HD-voice calls. Caller ID feature. User-friendly, multilingual interface. No adds. Everything you need to enjoy calling abroad!' and is an app in the Social & Communications category. There are more than 25 alternatives to Yolla for a variety of platforms, including Android, iPhone, Online / Web-based, Windows and Android Tablet. The best alternative is Skype, which is free. Other great apps like Yolla are WhatsApp (Free), Viber (Freemium), FaceTime (Freemium) and aTalk (Free, Open Source).
Skype is the most popular free voice-over IP and instant messaging service globally. It allows users to text, video and voice call over the internet. Users can also call landlines and mobiles at competitive rates using Skype credit, premium accounts and subscriptions.
WhatsApp is an iPhone and Android messaging app which allows you to exchange messages without having to pay for SMS. In addition to basic messaging WhatsApp users can create groups, send each other unlimited images, video and audio media messages.
With Viber, everyone in the world can connect. Freely. More than 460 million Viber users text, make HD-quality phone and video calls, and send photo and video messages worldwide over WiFi or 3G - for free.
aTalk is an XMPP client that supports the following features: * Instant messaging in plain text and End-to-End encryption with OMEMO or OTR * OMEMO encryption is available during multi-user group chat session, giving users maximum privacy and security * Supports both voice...
Nertivia is an chat client that allows you to chat to anyone across the world. There are a lot of features that don't require you to pay at all such as, gif profile pictures, free custom emojis and more coming soon!
VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC that can provide communication features within your web browser.
Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).
Skype Lite lets you send free text messages and make voice & video calls even under limited network conditions. Stay connected Skype Lite is optimized for 2G and unstable network connections, so you can stay connected with friends and family.