Sigil vs Viber
A side-by-side look at Sigil and Viber. For an in-depth review of either product, follow the links below.
Sigil
Office & Productivity
Sigil is a free, open source ebook editor that allows users to edit EPUB format ebooks. It has a simple interface and supports editing book metadata, table of contents, and text formatting.
epubebookeditor
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