I've proposed a new logo for Card Case that is open source app.
Card Case
Leave your paper business cards at home. With Card Case you can create your digital business card, and share it with people nearby in seconds.
Using Google’s Nearby technology, the Card Case app exchanges your business cards with people around you. You don’t need to create any account or send emails. And it works instantly.
Details
My Logo
Mockup
With Different Colors
With Different Background Colors
Different Sizes
Proof of the Work
Benefits / Improvements
I think the new logo represents the purpose of the application better.
New and Old
Tools
Adobe Illustrator CC
Original files
Posted on Utopian.io - Rewarding Open Source Contributors