The F-Droid Repository is an easily-installable catalogue of free and open source apps for Android. With F-Droid, it&#39;s easy to browse and install apps on your device, and keep track of updates. You can also browse the repository with a web browser, and download the app directly from there, if you can’t or don’t want to run the F-Droid client on your device.

All applications in the default repository must be Free and Open Source software – for example, released under a GPL or Apache license. Every effort is made to verify that this is actually the case, both by visual inspection of the source, and by building the application from the published source.

Software that reports user activity without permission (e.g. via Google Analytics) or tracks user behaviour (e.g. most advertising platforms) is specifically excluded from FDroid’s own repository, as is software with the primary purpose of interacting with a non-Free network service. You are, of course, free to set up your own repository for this kind of software – the server source is available, and the client will allow addition or removal of repositories as you see fit.

F-Droid originated as a fork of Aptoide. F-Droid can be installed from its website or from within Aptoide, but it is not available for download in Google Market. 

F-Droid

Online

Android

Android Tablet

<p>F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform.</p>

MapTool is an online, multiuser, networked, graphical, interactive, programmable virtual tabletop. Requires Java 6+. It can be used for face-to-face play, or Internet role-playing in real time even if your players are on the other side of the world.  MapTool in particular works great with voice-chat services!

These tools are not a role playing game by themselves, nor are they meant to replace everything at the RPG table. Rather, they are designed to be as flexible as we can make them, usable for a wide variety of gaming systems, from fantasy to sci-fi; from tabletop miniatures games to purely spoken-word games.

The tools aren&#39;t built from the ground up for any specific RPG, which is what allows for the great flexibility we have, but as a result, it can be difficult for us to indicate easily to individuals how best to make use of the tools for their specific purposes. Fortunately, the community forums are a thriving, active source of rapid responses to any questions you may have. We take pride in this as one of our greatest strengths and we encourage you to join us there. If the game you want to run is a commonly-found one, there&#39;s a good chance you can locate someone who&#39;s done most of the fine-tuning for you!  At the risk of leaving some out, our users have developed frameworks for D&amp;D3.x, D&amp;D4e, Pathfinder, ShadowRun, nWOD, GURPS, and many others.

MapTool

Windows

Linux

iPad

<p>MapTool is an online, multiuser, networked, graphical, interactive, programmable virtual tabletop. Requires Java 6+.</p>

Apps with 'Custom Repos' feature

F-Droid

MapTool