The Week in Mac Apps: Flying contraptions, exercising muscles, and disk alarms

In this week’s roundup of new Mac apps, you’ll find software that tells you when your disk is full, a great tool for exercising with scientific precision, and a game where putting together your own flying machines is almost as fun as smashing them to bits.

DEVONtechnologies’s $50 DEVONthink ( Mac App Store Link) has been updated to version 2.8.2.

The latest release of the popular data organization app comes with new full-indexing capabilities, an improved user interface, and a number of bug fixes.

Developer Manuel Carrasco Molina’s $4 Disk Alarm ( Mac App Store Link) tells you when your disks are about to get full, so that you can take action before you run out of space.

The app, which is fully compatible with OS X Yosemite, supports both internal and external storage devices, shows you the total space available on your system in real time, and can even send you alarms via e-mail.

If fitness is serious business for you, you won’t want to miss 3D4Medical’s $9 iMuscle 2 ( Mac App Store Link), which lets you target specific muscle groups for all of your workouts.

The app’s fully-searchable database of more than 650 exercises includes beautiful 3D videos for many different types of activities, allows you to create customized workouts, and can synchronize the latter across multiple devices.

Robert Dougan’s Inversion ( Mac App Store Link) is a handy utility that lets you control your Nest thermostat right from the convenience of your menu bar.

The free app shows you both current and previous conditions and allows you to set a new temperature or control the Nest’s away mode with the click of a mouse.

Belight Software’s $15 Labels & Addresses ( Mac App Store Link) helps you handle all your snail-mailing needs.

The app supports the creation of both envelopes and labels, can mail-merge data from a variety of sources, and can even print out barcodes in a number of different formats.

Akshay Hegde’s $1 Lyrical helps you play your iTunes content without having to deal with iTunes’ heavy user interface.

The app displays artwork and album information directly in your Mac’s Today panel, from where you can also control what’s playing and rate your songs.

Ready for a bit of aerobatic fun? Jundroo’s $5 SimplePlanes ( Mac App Store Link) allows you to design, build, and fly your own winged contraptions.

The game’s engine supports both horizontal and vertical takeoffs, real-time damage, and the ability to share your plans with your friends over the Internet.

Macphun’s $15 Snapselect ( Mac App Store Link) is a great way to get rid of duplicates and organize your photos.

The app employs a sophisticated algorithm that helps you find similar images and automatically pick the best shots in your collection, dispatching the remainder with ease.

Yes, Smith Micro’s venerable StuffIt 16 ( Mac App Store Link) is still alive and well, and available on the Mac App Store for $10.

The popular app can be used to manipulate ZIP and StuffIt files, which can be browsed as if they were a directory on your hard disk. Of course, you can compress data as well, with the option of encrypting it and adding self-healing features to the resulting archives.