MarkReader vs Viber
A side-by-side look at MarkReader and Viber. For an in-depth review of either product, follow the links below.
MarkReader
Office & Productivity
MarkReader is a free, open-source document viewer and annotation tool. It allows users to view PDFs, Word docs, PPTs and more while adding highlights, notes, bookmarks and annotations. Useful for reviewing documents, collaborating with others, and organizing research.
pdfviewerannotationhighlightsnotesbookmarkscollaborationresearch
Viber
Social & Communications
Viber is a free messaging and calling app for smartphones. It uses your phone number to connect you with people in your contacts and allows free calls, texts, photos and video messages over WiFi.
messagingcallingfreecontacts
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