Pocket Informant vs Todo.txt

Pocket informant manages notes, tasks, and calendar info.

Almost everything is provided, from calendar to todo,'s as well as managing lists, all of which is organized via Pocket and syncs perfectly thru all devices.

InformantSync ensures that your calendar / tasks / notes / etc. are all synced.

Temperature and other weather conditions are displayed each day.

Adding events and making them visible between other events is easy. Streamlining your multiple events is implemented very well in this app.

Events can be tagged, sorted by location, priority, or context.

You can use it as a basic organizer or a complex project tool.

It makes is extremely easy to view and provides great functionality for updates or creating new events.

Handles time zones automatically considering declared trips.

Pocket Informant supports printing, meaning that a calendar can be printed after being loaded with information.

Todo.txt can be edited in plain text and then displayed with neat styles.

Because todo.txt is just a todo standard with various compatible apps to edit it, you can update it from any device as long as it can edit text and you can access your todo.txt file

It's convenient to be able to access your todo list quickly via your programming environment so you don't have to switch contexts, and to have a separate todo.txt file per project.

Todo.txt lists can be edited in virtually every text editor ever made and accessed on devices that support Dropbox. The user community has also created a number of apps for dozens of platforms.

You can edit your lists using the command line (e.g., Terminal) via a supplied bash script.

You have full access to the underlying programming rules, and therefore total control over your task lists.

Has been extended to include most things people want, including a multiple of interfaces and app for all platforms.

Todo.txt automatically and seamlessly syncs through Dropbox.

The community has developed a wide range of apps that interface with the basic file structure. These apps vary in how much they accomplish, how much hand-holding they do, their level of glitz, etc. They range from plugins for an editing app like vim to stand-alone, platform-specific GUI's. So YMMV depending on what you use. (todopy is particularly nice, a Python program that has a "console" mode which provides a keyboard-driven GUI.)

Does one thing: to do lists

It runs on MacOS, Android, and Python (in the Mac's Unix CLI) -- all for free.

At a bare minimum you just need to be able to edit text, but there are many apps and advanced interfaces you can install on many devices to supplement your to-do list editing.