Kivo is described as 'Annotate and share PowerPoints and PDFs online in seconds, without signing up' and is an app in the development category. There are four alternatives to Kivo for Online / Web-based. The best alternative is Red Pen, which is free. Other great apps like Kivo are Visualtip, Moqhub and Flatsies.
Upload your designs,mockups or wireframes and organize them in projects. Share them with friends, colleagues and clients to get point specific Feedback. Giving Design Feedback is easy possible without any registration by your customers.