I have used this app for many years. I love it! I use it for packing lists, grocery lists, errands, brainstorming notes. I can export a list to my mind mapping app easily. It has easily moved to various new iPads over the years, with all data intact. Thank you so much for this app.

NEW CAVEAT: There is a setting to make font smaller, but not one to make it larger or even largest. Nowadays my vision won't let me work without a bigger font. Developers need to give more thought to accessibility. -- ORIGINAL REVIEW (5 STARS): OmniOutliner is prettier and offers columns, this outliner lets me get real work done fast. It's easy to make and rearrange an outline, and it works with both email and the developer's free online syncing service. Easy to get data in and out with OPML. I actually use OmniOutliner, too, but for specific purposes involving highly formatted documents I create on my Mac. For serious thinking and outlining on the go, whether on my iPad or iPod, this is what I prefer to use, because it gets out of my way and lets me work. Also let's me organize my outlines with tags, which I can treat like folders. Wishes? Dropbox support would be nice. UPDATE: The addition of Dropbox support has been very helpful. Unfortunately, one must opt for Dropbox support on a file-by-file basis, and the syncing is not automatic. Still, it's pretty easy.

My favorite feature is that it keeps copies in synch, so the shared checklists are always up to date on whatever devices they live on. A nice to have feature would be to mark a task as in progress but not yet complete. The workaround is just to leave the task open and use notes for progress. One can also micromanage by splitting the task down into two or more sub tasks. Another nice to have would be counts of how many tasks are in the outline, just informationally.

This is the longest running app I’ve had. It’s so simple and it’s become a part of the way I think. I have other outliner apps and they simply get in the way. Yes they have lots of other bells and whistles but nothing comes close to the simplicity and straightforward way this app works. Completely recommend this to anyone, and the web interface is icing on the cake. Great stuff.

Been using and relying on this app for years. The web based Outliner Online is super helpful and a nice bonus.

Carbonfin outliner is head and shoulders the best outliner is the world. It is extremely flexible, a new list or adding an entry to an-9#ting liebteyto a couple of intuitive clicks. The layout on the iPad is especially handy. The powerful season function will jet you manage even long,complex lists easily. This is really a gem!!

I have only had outliner for a few days but am already impressed. I have the app on my iPad, iPhone and am also using the free carbonfin.com web interface. So this means I can be on both desktop and devices updating my outlines. And I can easily sync my outlines. As a backup I can save my outline to Dropbox — the Dropbox feature is built into the app — a folder is automatically set up in Dropbox for this purpose. And I can also save an outline in plain text if I want to. Importantly, the outline elements are dragable on my devices and can be moved up and down on the web interface . And all of this is very simple to do. Very intuitive. Easy to learn. The developers clearly know what they are doing and must be fans of outline programs — because they have created a superb app. ....Rowby.

Apl 2018 The app now has full screen view in landscape, making it officially the best outliner in the App Store. There are apps that make fancier outlines, but frankly on the iPad fussing with formatting is just annoying. Plus they use proprietary formats. This app uses OPML, which with Dropbox sync makes it easy to transfer usable data between all platforms. This plus the ability to fold text (hiding points you're not working on) makes it a great way to get serious writing done on the iPad. Feb 2016 I've had Outliner since iPad 1, and it's still the best OPML app in the store. And still desperately needs (1) full screen landscape mode and (2) ability to select Dropbox folder for sync. Neither of these are hard. Older: This is a really good app. It does outlining, just outlining, really well. Which is why it is so frustrating that after 5 years, the developers still haven't released a version adapted to the IPAD. What you get is two iPhone screens sitting next to each other, crowding the space and making it harder to actually write. Carbonfin, put in full screen landscape mode in the next version. Please! Old review: Function-wise, this is the best outliner in the store. Although it doesn't have the fancy formatting of omnioutliner, it also doesn't require their proprietary format. And Dropbox sync means I can avoid Carbonfin's sync services, too--that's good. Problem: as it's been since the beginning, this app in landscape remains two iPhone screens glued together. Full screen mode in landscape would be easier to use with large outlines, better looking, and would prevent me from unwanted touches on the list of outlines. Please, please give us full screen mode in landscape!--as I've been asking for three years now. All other apps do it, so I know you can too!

I like the app very much. I use it for my things to do list, with a different outline for different categories. I switched from Toodledo for my to do lists because with Outliner I'm able to manually sort the items. I'm only giving three stars because the support for the product stinks. I've contacted them many times with product enhancement ideas and never even receive an acknowledgement let alone a meaningful reply. This has happened many times. I haven't seen an upgrade come through for a very long time, also. Is the product still being supported? UPDATE Recently the developer has stated that he hasn't thought about this app for a long time but he may get back to it sometime. This is becoming an issue. Apple apps are becoming orphan children as quickly as new apps get designed. It makes you think twice about putting a lot of meaningful data into an app that may not be supported in a little while. When an app is abandoned by its designer, it doesn't even load up on your iPad after an iOS upgrade. I've had apps disappear never to be seen again because they are no longer listed in the App Store.

I've tried dozens of outlining and mind mapping apps, but always return to Outliner. It just works! Keep up the good work, guys! This is one of the single most useful apps in my toolkit.