Quizzley is a simple site that allows you to create a quiz or a poll and distribute it to your audience. Once your audience pairs with the quiz/poll, their smartphone will automatically transform into the voting pad. It's a fast way to interact with your audience; no authentication or registration are needed.
Topologic is a simple renderer for certain higher-dimensional geometric primitives and some regular 3D shapes. The idea is to make it easy for students of certain higher-dimensional maths and physics topics to visualize the typical primitives in those fields and get a grasp for the topic.
The Open-Transactions project is a collaborative effort to develop a robust, commercial-grade, fully-featured, free-software toolkit implementing a full-strength financial cryptography library, API, CLI, and prototype server. Open-Transactions democratizes financial and monetary actions. You can use it for issuing currencies/stock, paying dividends, creating asset accounts, sending/receiving digital cash, writing/depositing cheques, cashier's cheques, creating basket currencies, trading on markets, scripting custom agreements, recurring payments, escrow, etc. Strong crypto is used. Balances are unchangeable (even by a malicious server). Receipts are destructible and redundant. The transactions are unforgeable. The cash is untraceable. The cheques are non-repudiable.
Quassel IRC is a modern, cross-platform, distributed IRC client, meaning that one or more clients can attach to and detach from a central core, much like the popular combination of screen and a text-based IRC client, but graphical. In addition to this unique feature, it aims to be a comfortable chatting program.
Serv-U FTP Server is a Web, mobile device, SFTP, and FTPS file transfer server. It handles hundreds of GBs per day and thousands of users. The advanced Web interface permits transfer of multiple, large files in a single operation. It supports mobile devices including iPad, iPhone, and Android, as well as IPv6, FIPS 140-2, and more.
The Geo Trending app presents a list of countries in an order by how much they are mentioned in the news. You can browse the list and see the news. For each country, the app displays a circle indicating how often it's being mentioned at the present moment. The app uses the Vysoko News Analytics backend to fetch its data. With this app, you can see how current events correlate with news articles and how trends develop.
The OrderPlug iPad app is a self-service app for restaurants which lets the venue hand out iPad tablets instead of paper menus. The difference in this app is that you don't need a POS to make this functional. There are no monthly fees, no need for an Internet connection, or any change to your existing cash desk, printer, or backend. You just download the app to the iPad on which you will edit your menu and run it in receiver mode, and download the app to iPads you will hand out and run them in client mode.