33) Text Edit
This simple text editor lets you write, edit and save short documents on your Android phone. You can select the font size and type, change colors and e-mail the documents you create. Operating System: Android.
34) OI Notepad
35) VuDroid
With VuDroid, users can view PDF and DJVU documents from their Android devices. Features include zoom by slider drag, fast orientation change and more. Operating System: Android.
36) Edhita
This is a simple text editor and file transfer program for iPad only. It's missing the fancy features that would make it a full word-processing program, as well as the text highlighting and completion features you would find in code editors, but it gets basic jobs done. Operating System: iPad.
37) OpenOffice Document Reader
With this app you can view (but not edit) documents created with OpenOffice or LibreOffice. Features include zoom, copy and spreadsheet support. Operating System: Android.
38) NeoOffice
The Mac fork of OpenOffice also offers a viewer for iPhones and iPads. In addition, NeoOffice offers a paid service that will let you upload your documents to the cloud for viewing from mobile devices. Operating System: OS X, iOS.
39) Standup Timer
Keep your standup meetings short and sweet with this helpful timer. It displays both the amount of time elapsed and the time left before you need to wrap up your meeting. Operating System: Android.
40) F-Droid
F-Droid offers a catalog of dozens of open source apps for the Android platform. It you don't want to install them all, you can also download the individual apps separately. Operating System: Android.
41) OpenVPN
Downloaded more than 3 million times, this popular open source SSL VPN solution makes it possible for remote workers to access your corporate network securely. It's also available with commercial support or as a cloud-based solution. A number of other client front-ends are also available. Operating System: Windows, Linux, OS X.
42) TightVNC
With TightVNC, employees can control their work computers while they are at home or traveling. It's lightweight and fast and conforms to RFB protocol specifications. Operating System: Windows, Linux.
43) AndroidVNC
This TightVNC fork allows you to view and interact with your computer from your Android phone. Obviously, it's tough to do a lot of work from your phone, but it is useful for short and simple tasks. Operating System: Windows, Linux.
44) UltraVNC
UltraVNC provides similar functionality as TightVNC. Key features include file transfer, video driver, optional encryption plugins, text chat and multiple-monitor support. Operating System: Windows.
45) APG
Short for "Android Privacy Guard," APG ports the OpenPGP encryption software for Android devices. Use it to encrypt, decrypt and sign files and e-mail. Operating System: Windows.
46) KeePassDroid, 7Pas, iKeePass, KeePass for BlackBerry
The open source password safe KeePass has been ported to all of the major mobile operating systems. It saves all of your passwords in an encrypted database so that you only have to remember one master password. Operating System: Android, iOS, Windows Phone 7, BlackBerry.
Like KeePass, Secrets saves your passwords in a master database. However, this app also gives you the option of saving other secret information in the same secure database so that it can't be accessed if your phone is lost or stolen. Operating System: Android.
48) Astrid
Astrid describes itself as a "social productivity" tool. Basically, it's a to-do list and reminder system that you can use individually or with groups. Operating System: Android.
49) Barnacle
This WiFi tethering app lets you turn your Android phone into a wireless router that will connect your other devices to the Internet. Note that this app requires root access. Operating System: Android.
50) Open Manager
Open manager is an open source file manager for Android smartphones and tablets. It allows you to cut, copy, paste, rename, delete, sort, zip and backup files and folders. Operating System: Android.