aTalk - An encrypted instant messaging with video call and GPS features for android.
Ziflow - Online Proofing software from Ziflow keeps teams connected and collaborating by providing a single source of truth for creative review and approval.
Talk360 - Talk360 is a best-in-class communication utility that offers a convenient way to connect with loved ones globally.
PageProof - Online proofing of anything and everything, made simple. Streamline feedback for easy collaboration, secure workflows, and faster approvals. PageProof. The smarter way to review.
FluffyChat - Open. Nonprofit. Cute ?
ReviewStudio - ReviewStudio is an online proofing software built for easy collaboration on review and approval workflows, for all your image, video, web pages and PDF based projects.