It’s time for another round of apps that cover the spectrum of your beloved smart device(s)!

The Weekly App Smack is the best of new or updated design and productivity apps (and maybe a couple of fun ones, too) for the busy design or engineering professional. This week we have a list sure to make you more efficient.

Do you have an app suggestion that has made your life easier or changed up your workflow? Let us know in the comments below or send it into

Hit it!

Tunity: Hear any muted TV (iOS — Free)

Now you can tune-in wherever you go! TUNITY is a FREE app that allows you to hear any muted, live TV’s audio directly on your mobile device. Simply scan the TV, let Tunity locate the channel and stream the audio through your headphones or bluetooth speaker.

Tunity: Hear any muted TV

Simple Mileage Tracker (iOS – Free)

Simple automatically tracks and records your mileage in the background as you drive your car for business. Simple users save an average of $6,000 per year.

Simple Mileage Tracker

Pluto: Money Saver & Tracker (iOS — Free)

Manage your spending & saving in a fun, simple & automatic way. No more tedious budgets, stressful numbers & ugly graphs—ever again!

Pluto: Money Saver & Tracker

letgo: Buy & Sell Used Stuff (Android — Free)

letgo is the biggest and fastest growing app to buy and sell locally. Over 75 million downloads and 200 million listings!

letgo: Buy & Sell Used Stuff

ES File Explorer File Manager (Android — Free)

ES File Explorer (File Manager) is a full-featured file (Images, Music, Movies, Documents, app) manager for both local and networked use!

ES File Explorer

Messages (Android — Free)

Meet Messages, Google’s official app for texting (SMS, MMS) and chat (RCS). Message anyone from anywhere with the reliability of texting and the richness of chat.

Google Messages