Kik
Description: Kik is a free instant messaging app for mobile devices that allows users to chat with friends using text, stickers, gifs, and more. It's especially popular among teenagers and known for its anonymity features.
Type: software
quackr
Description: Quackr is a free, open source alternative to Basecamp. It is a project management and team collaboration tool allowing users to manage projects, tasks, documents, messages, time tracking, calendars and more in one place.
Type: software
Pricing: Open Source