The basic hurdle for any list-making and note-taking apps and systems is that they have to take less time and effort than simply remembering everything you have to do by brute mental force. Most don't pass that hurdle; a few do, and then a very, very few go beyond simply making things easier to actually making them better.
Workflowy is one of those few.
It takes notes and makes list as you'd hope an app of its kind would, and then adds all kinds of extras that turn it into an expandable, collapsible, zoomable, nestable second brain, where you can store ideas and information and then quickly and easily retrieve them.
Available for iOS and Android devices, it allows syncing between your phone, your tablet and your computer. It also lets you search for text, and collaborate with others.
Missed any of the previous Apps of the Week? View them here:
Conojo Whiteboard -- whiteboard and collaboration toolContactually -- contact management/CRMWorld Clock -- time and date infoDispatch -- e-mail managementPocket -- saving Internet contentGneo -- to-do listsSwiftKey Keyboard -- typing/keyboard appClockwork Tomato -- organization/time-tracking appGoogle Kee p -- note-taking appDragon Dictation dictation/transcription appTodoist to-do lists/task organization appSecret! encryption appWhatsApp Messenger -- smartphone messengerFolderSync document and file storageCloud Print -- printer access appTempo Smart Calendar -- scheduling appPenultimate -- note taking/sharing appEchoSign -- eSignature appJump Desktop -- remote desktop appTweetbot -- Twitter appBoxer -- email appPrintCentral -- digital document printing appSave2PDF -- PDF creation appPDF Expert -- PDF editing and management appScout GPS -- navigation appTimesheet -- time tracking appCloud On -- MS Office appSuper Note -- note-taker and reminder appAir Display -- dual monitor appStickyboard 2 -- iPad whiteboarding appDigits Calculator -- calculator app with editable calculationsLogMeIn -- computer remote control appChrometa 4.0 -- phone time and email capture appScanner Pro -- scan-from-a-mobile-device app