Everything from Todd Ditchendorf is so unique and thoughtful. His groundbreaking app Fluid is known by every longtime Mac user. Todd continues to impress with his new apps too. Schwartz is a vector graphics app that automatically generates templated code in a variety of languages. As with everything under the Celestial Teapot umbrella, Schwartz is also inexpensive at only $10. Here’s a great intro to using Schwartz to create SVG graphics for Safari pinned tabs.

What a fantastic analysis of the mistakes robots make On November 28th, 2012, Randall Munroe published an xkcd comic that was a calendar in which the size of each date was proportional to how often each date is referenced by its ordinal name (e.g. “October 14th”) in the Google Ngrams database since 2000. Most of the large days are pretty much what you would expect: July 4th, December 25th, the 1st of every month, the last day of most months, and of course a September 11th that shoves its neighbors into the margins.

From Mike Hearn: Think about it. If you had never heard about Bitcoin before, would you care about a payments network that: Couldn’t move your existing money Had wildly unpredictable fees that were high and rising fast Allowed buyers to take back payments they’d made after walking out of shops, by simply pressing a button (if you aren’t aware of this “feature” that’s because Bitcoin was only just changed to allow it) Is suffering large backlogs and flaky payments … which is controlled by China … and in which the companies and people building it were in open civil war?

This is a really good review that covers a lot of the Interact features.

Agile Tortoise, makers of Drafts app for iOS, just released a new contact manager. I’ve been on the beta for a while and I’ll be honest, it took me some time to appreciate what it does. The revelation for me was to think of Interact more as an extension than an app. If you’ve ever used a natural language calendar to create appointments, Interact is like that for contacts. Just send some text with contact data into Interact and it does all the parsing for you.

$70 is a lot of money for a text editor but I think this article makes a pretty good case for taking the leap. It’s my primary working tool on both Windows and the Mac. I think it’s great and I think it’s worth the price.

This week marks the official release of Default Folder X 5 for the Mac. I’ve used this app every day for at least 5 years. Maybe 10. Who knows. It’s just a standard part of every Mac I own. Version 5 (a paid upgrade) has a ton of minor fixes and some new major features. The new Finder shelf is terrific. Click the button (or keyboard shortcut) to reveal the drawer below any Finder window.

From Rogue Amoeba: Take audio from your physical microphone and combine it with audio sources like iTunes or QuickTime Player. Presto! Your guests on Skype will hear your voice, as well your sound effects and musical add-ons. Rogue Amoeba makes such cool audio software. Unparalleled in the Mac market.

Pythonista 2.0 is available as a free upgrade on Monday. I haven’t participated in the beta this time around but it looks like a nice upgrade. Most exciting to me is that Pythonista is the basis for Editorial and I’m hopeful we’ll see the iOS 9 version soon. Here’s a nice preview PR video shared by Ole on Twitter

One of the first modern Mac apps that I really loved was Circus Ponies Notebook. I bought so many copies of that app for everyone I knew with a Mac. Sad to see them go.