In searching for the most appropriate To-Do application, I evaluated 33 solutions against a specific set of weighted requirements.

1. Task Show to- Show to- View and View and Recurring Assign Attach Snooze To-dos To-dos Bonus Notes Price Weighted Score out of
dos on a dos on edit to- edit on to-dos dates to alert to to- alerts can be put can be put score 100
calendar calendar dos with remote to-dos dos in groups in
next to iPhone (or machines subgroup
other mobile) s
events
Weight 8 6 10 9 6 10 5 4 10 5 10 10 830
Remember the Milk 8 8 10 10 10 10 10 10 9 0 0 Good alerts; natural language; 0 642 77
sharing; iCal feed
Cultured Code 9 9 9 0 10 10 1 0 10 10 9 Lovely desktop app; 50 621 75
Things scheduled starts; iCal and
iPhone
Life Balance 8 8 10 2 7 9 2 2 10 10 5 Nice groupings; lovely pie 80 580 70
chart; iCal support
OmniFocus 8 8 8 8 10 10 0 0 10 10 0 Pretty; iCal support 100 574 69
Action Method 5 5 8 8 4 8 8 5 9 7 6 Really pretty -- but also kind of 0 571 69
Online busy; pretty unfamiliar
workflow
Google Tasks 10 10 9 10 0 10 0 0 9 0 6 Super-easy 0 570 69
Appigo Todo 7 7 9 7 9 10 4 0 7 7 3 Pretty busy; groups & symbols 10 560 67
are confusing; checklist is nice;
sync with iCal or web services
is tricky & ugly; alerts are
iPhone only
Toodledo 7 7 10 9 9 8 5 5 7 7 -1 very ugly; has browser plugin; 2 553 67
supports gCal
The Hit List 0 0 5 8 10 10 10 10 10 0 8 Extremely pretty; iCal sync 50 552 67
Vitalist 8 8 9 10 0 10 0 0 10 10 iCal support; a little confusing 5 542 65
Notify Me 0 0 10 10 10 10 10 10 6 0 0 pretty iphone app; web 4 500 60
interface
Nozbe 0 0 10 10 0 10 0 0 10 5 6 Very pretty 475 57
Todoist 0 0 8 10 0 10 0 0 10 10 1 Firefox plugin; documentation 430 52
in Engrish; somewhat pretty
iCal 10 10 0 5 0 10 8 8 6 0 Sync is tricky 417 50
BusyCal 10 10 0 2 3 10 10 0 3 0 6 Very pretty 40 416 50
Moleskine 6 6 8 8 0 3 0 0 4 4 4 Very stylish 18 366 44
Listingly 0 0 10 10 0 8 0 0 5 0 2 Grocery feature; shared lists; 15 340 41
no desktop app
Doit.im 0 0 0 0 10 10 9 8 10 0 0 0 337 41
Tanjas Checklist 0 0 10 0 0 8 0 0 10 10 0 More of checklist than to-do 2 330 40
Zenbe Lists 0 0 10 10 0 10 0 0 0 0 3 Pretty; sharing; no sync; no 3 320 39
desktop app
Ultimate Todos 0 0 10 0 0 9 0 0 9 0 0 Toodledo sync required for 5 280 34
calendar stuff
Firetask 0 0 10 0 0 8 0 0 7 5 0 Pretty minimal 5 275 33
Voo2Do 0 0 0 10 0 10 0 0 8 3 -1 Kind of ugly 0 275 33
Tinytodo 0 0 0 10 0 0 0 0 10 7 4 very pretty 0 265 32
My Lists 0 0 10 0 0 8 0 0 10 0 -2 Almost no documentation 2 260 31
Ta-Da Lists 0 0 0 10 0 0 0 0 10 0 6 Really attractive and easy to 0 250 30
use
ZoToDo 6 6 0 10 0 9 0 0 0 0 -3 Ugly 0 234 28
Intuiware Hot Plan 0 0 0 0 0 10 10 0 10 2 -7 Pretty busy and confusing; no 20 190 23
documentation
Tapeshow Chores 0 0 9 0 0 5 0 0 8 0 -5 No documentation 5 170 20
Ido 0 0 10 0 0 6 0 0 0 0 0 3 160 19
Chillix Done 0 0 10 0 0 0 0 0 0 0 5 Really nice wallpaper feature; 1 150 18
lame documentation
Dobot Todos 0 0 9 0 0 5 0 0 5 0 -5 No documentation 0 140 17
Evernote 0 0 2 2 0 0 0 0 2 0 -5 No documentation 0 8 1