It’s time for another round of apps that cover the spectrum of your beloved mobile 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 and 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!

Trello (iOS — Free)

Trello gives you perspective over all your projects, at work and at home.

Logo Foundry (iOS – Free)

Logo Foundry is a professional logo design suite that lets you create powerful branding for your business in a matter of Minutes!

PayPal Business (iOS — Free)

The PayPal Business mobile app helps you stay on top of your PayPal business account while you’re on the go.

Fenix 2 for Twitter (Android — $1.99)

Tired of the same old Twitter apps? Give Fenix a try and you won’t go back!

Photomath (Android — Free)

Simply point your camera toward a math problem and Photomath will magically show the result with a detailed step-by-step instructions.

3D Parallax Background (Android — $1.99)

The original multi-layer holographic illusion live wallpaper!