lmemsm

I'd looked for personal information managers, todo and organizational programs and even countdown timers before. However, recently I started looking at some of the options at F-Droid which prompted me to look at the lightweight, cross-platform programs I've found in this category again.

fltdj ( http://www.geocities.ws/letapk/thedailyjournal.html ) is a great option if you need a lightweight personal information manager. It uses FLTK as its GUI library. Some other interesting options I previously tracked down and tried were hyperlist which works with SDL 1.2.15 and tux_todo which is also FLTK based. I haven't worked with hyperlist or tux_todo in a while and I don't see their source code available online any longer. While they are lightweight, I felt some more user friendly options might be a better match for me. OTK ( http://otk.sourceforge.net/ ) is an interesting cross-platform GUI based on OpenGL. Two user-friendly applications for OTK are StopWatchTimer and countdown_timer. Another program I discovered a while ago was rcard ( https://sourceforge.net/projects/rcard/ ), a contact management program that uses pdcurses/ncurses. It can work with files in vcf format.

I recently searched for console based todo list programs. There are also several console based options mentioned at the Inconsolation site ( https://inconsolation.wordpress.com/ ). I searched through several of them trying to find the more portable options. I also searched various code archives looking for cross-platform portable C programs in this category. Most of what I found was fairly simple. Here's a list to date which I've tried to break down by functionality.


Habit trackers:
habit (cli) https://github.com/iestynpryce/habit
habit-builder-challange-30days (cli) https://github.com/ethemsvg/habit-builder-challange-30days

todo.txt based programs:
ctodo (ncurses/pdcurses) https://github.com/nielssp/ctodo
Todo.c (ncurses/pdcurses) https://github.com/Sir-Photch/Todo.c
todo-C (cli) https://github.com/29rohitkr/todo-C
The following works cross-platform if you comment out the wordexp related code for systems that don't support it:
todo.c (cli) https://github.com/hit9/todo.c
todocmd (cli) https://github.com/iiAtlas/todocmd
todocmd (cli) https://github.com/cfolwell/todocmd

Other scheduling programs:
memo (cli) https://github.com/anttiviljami/memo
tasktimes (cli) https://github.com/timpark/tasktimes


Another FLTK based organizer program that I recently compiled was MUPO ( http://www.jwwulf.de/de/apps/mupo/intro_en.htm ). Needed a few modifications to work with FLTK 1.4.x, but it does compile, build and run.

As to finding a good FLOSS todo organizer for Android devices, I'm still looking. However, F-Droid offers several options. Editors that are designed to work with todo.txt files are another option available on Android.

If anyone has other suggestions for lightweight and portable organizer and timer applications, please let me know. I'll be adding to this list as I come across other alternatives.