Pen Pals vs Umbrella JS
A side-by-side look at Pen Pals and Umbrella JS. For an in-depth review of either product, follow the links below.
Pen Pals
Social & Communications
Pen Pals is a pen pal matching service that connects people from around the world to become pen pals. It helps facilitate meaningful friendships via written correspondence.
pen-palsletter-writinginternational-friends
Umbrella JS
Development
Umbrella JS is an open-source JavaScript framework for building user interfaces and single-page applications. It is lightweight, modular, and designed for rapid web development.
opensourceuser-interfacesinglepage-applicationlightweightmodularrapid-development
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