Offhub is described as 'supports your company in day-to-day work by making people availability transparent and easily accessible. Get rid of multiple tools and spreadsheets used for tracking absence and project assignment in favor of one, easy to use and powerful tool'. There are four alternatives to Offhub for Android, iPhone, SaaS and Online / Web-based. The best alternative is ScheduleLeave. It's not free, so if you're looking for a free alternative, you could try timeION. Other great apps like Offhub are Biings (Paid) and Absence (Paid).
ScheduleLeave can help save time and effort when tracking & approving all leave types within your team or organisation. Gain transparency as to who is off, when they're off, as well as understanding if any planned leave clashes with other staff.
Biings is the first software designed to prevent absence risk factors. From analytics and absence follow ups to claim reporting, Biings is composed of three products built around the same proactive and caring philosophy.