Harmful

I switched to 2Do from Things, because it had a few nice features that Things was missing. This was a mistake. 2Do has two substantial problems that make it a harmful choice for serious use.

(1) I sync 2Do with Dropbox, to keep my to-dos in sync between my home computer, my work computer, and my phone. On two occasions, after I’d been working in 2Do for a while, it spontaneously decided to sync, replacing my recent changes with an older version of my data.

(2) Several times, I used the Undo command to reverse a step I’d taken. Instead of reversing that step, 2Do returned my data to a state from several minutes ago—moving tasks around, erasing new tasks I’d created, returning tasks I’d marked as done to my list.

The effect of glitches like this is that I could never trust that my to-dos were correct—I had to constantly worry about the integrity of the 2Do data. This is exactly the opposite state of mind necessary for productivity. I’ve just finished copying all my to-dos back into Things, which certainly has its flaws but which always handles sync and undo flawlessly.

Gabe Roth about 2Do